Detection mechanism for processing multilayer printed circuit board

Abstract

The utility model discloses a detection mechanism for processing a multilayer printed circuit board, which belongs to the field of circuit board processing and comprises a detection table, a fixed block is rotatably arranged on the detection table, a plurality of vacuum chucks are arranged in the fixed block and are communicated and connected with a vacuum pump, and a support frame is arranged on the top wall of the detection table. An electric sliding rail is fixedly arranged on the top wall of the supporting frame, a top image collector is movably arranged on the electric sliding rail through a sliding block, a side image collector and a control panel are further arranged on the supporting frame, overturning structures are symmetrically arranged on the two sides of the fixing block, each overturning structure comprises a first electric telescopic rod, and a connecting block is fixedly arranged at the telescopic end of each first electric telescopic rod. Second electric telescopic rods are vertically and symmetrically arranged in the connecting block, pressing blocks are fixedly arranged at the telescopic ends of the second electric telescopic rods, and pressure sensors are fixedly arranged on the outer walls of the pressing blocks.

Description

Technical Field

[0001] The utility model relates to the field of circuit board processing, in particular to a detection mechanism for processing multi-layer printed circuit boards. Background Art

[0002] Multi-layer printed circuit boards are an indispensable part of electronic engineering. They are composed of multiple conductive layers and non-conductive layers stacked alternately, and the conductive layers are interconnected through holes to form a complex circuit network. Due to their high density, high reliability, good electromagnetic compatibility, and excellent heat dissipation performance, multi-layer PCBs are widely used in fields such as communication, computer, aerospace, military, and medical.

[0003] The advantages of multi-layer PCBs are that they can arrange more circuit paths in a limited space, improve the wiring density, making electronic devices more compact and efficient. At the same time, the multi-layer structure is conducive to signal isolation and interference reduction, ensuring signal integrity. In addition, multi-layer PCBs can provide a stable power distribution and effective electromagnetic shielding through dedicated power and ground planes, and the multi-layer design helps to dissipate heat, improve the thermal efficiency of the circuit, and extend the service life of electronic devices.

[0004] The manufacturing process of multi-layer PCBs includes multiple steps such as inner layer production, lamination, drilling, electroplating, and outer layer production. In the whole manufacturing process, quality control is extremely important, and a detection structure is required to ensure the performance and reliability of the circuit board.

[0005] The traditional detection structure can only detect the upper surface of the circuit board after fixing the circuit board, which is inconvenient for turning it over to complete the overall detection of the circuit board. Moreover, it cannot be adjusted according to circuit boards of different thicknesses or specifications to enhance the applicability of the detection mechanism. The image acquisition of the outer surface of the circuit board is not comprehensive enough to ensure that complete and clear images can be collected at every place on the circuit board. Summary of the Utility Model

[0006] In order to solve the technical problems of the above-mentioned traditional detection structure that can only detect the upper surface of the circuit board after fixing the circuit board, which is inconvenient for turning it over to complete the overall detection of the circuit board, and cannot be adjusted according to circuit boards of different thicknesses or specifications to enhance the applicability of the detection mechanism, and the image acquisition of the outer surface of the circuit board is not comprehensive enough to ensure that complete and clear images can be collected at every place on the circuit board, the utility model provides a detection mechanism for processing multi-layer printed circuit boards.

[0007] A detection mechanism for processing multi - layer printed circuit boards, including a detection table. A fixed block is rotatably arranged on the detection table. Inside the fixed block, there are several vacuum suction cups, and several vacuum suction cups are all connected to a vacuum pump. On the top wall of the detection table, there is a support frame. On the top wall of the support frame, an electric slide rail is fixedly arranged. On the electric slide rail, a top image collector is movably arranged through a slider. On the support frame, there is also a side image collector and a control panel. On both sides of the fixed block, a flipping structure is symmetrically arranged. The flipping structure includes a first electric telescopic rod. The telescopic end of the first electric telescopic rod is fixedly provided with a connecting block. Inside the connecting block, a second electric telescopic rod is symmetrically arranged up and down. The telescopic end of the second electric telescopic rod is fixedly provided with a pressing block. On the outer wall of the pressing block, a pressure sensor is fixedly arranged.

[0008] A further solution is that a servo motor one is arranged on the bottom wall of the detection table through a mounting frame. The fixed block is arranged at the output end of the servo motor one. The vacuum pump is fixedly arranged on the outer side wall of the fixed block. Several vacuum suction cups are embedded inside the fixed block, and the suction ports face upward and are on the same horizontal plane as the top wall of the fixed block. Several vacuum suction cups are all connected to the vacuum pump through air pipes.

[0009] A further solution is that the support frame is an L - shaped structure, and a group of vertical plates are fixedly arranged on its side wall. On the outer wall of the group of vertical plates, a servo motor two is arranged through a mounting frame. The output end of the servo motor two is fixedly provided with a rotating block. The first electric telescopic rod is fixedly arranged on the side wall of the rotating block.

[0010] A further solution is that the connecting block is a U - shaped structure. Two second electric telescopic rods are oppositely arranged on the top wall and the bottom wall of the connecting block. A friction layer is fixedly arranged on the outer wall of the pressure sensor.

[0011] A further solution is that the side image collector is arranged above the side of the fixed block and can collect images of the side of the circuit board placed on the top wall of the fixed block. A slider is slidably arranged on the electric slide rail. The top image collector is fixedly arranged on the bottom wall of the slider and can collect images of the upper and lower surfaces of the circuit board placed on the top wall of the fixed block.

[0012] A further solution is that the control panel is electrically connected to the vacuum pump, the electric slide rail, the top image collector, the side image collector, the first electric telescopic rod, the second electric telescopic rod, the pressure sensor, the servo motor one, and the servo motor two.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The vacuum suction cup can adsorb the circuit board, and the fixing block drives the circuit board to rotate slowly, so that the side image collector can collect the complete side of the circuit board. The top image collector moves on the electric slide rail, and can comprehensively collect the images of the top and bottom surfaces of the circuit board, which is convenient for comparing the detection results with those of qualified products. The pressing block cooperates with the pressure sensor to apply an appropriate clamping force to the circuit board and drive the circuit board to flip, making its bottom surface face up, which is convenient for image collection of the bottom surface. The entire detection process can be carried out under the control of the control panel, realizing automatic detection and improving the detection efficiency. Description of the Drawings

[0014] Figure 1 It is a front view schematic diagram of the structure of the present utility model;

[0015] Figure 2 It is a top view schematic diagram of the structure of the present utility model;

[0016] Figure 3 It is a top view schematic diagram of the electric slide rail 6 of the present utility model;

[0017] Figure 4 It is a schematic diagram of part of the structure A of the present utility model;

[0018] Figure 5 It is a schematic diagram of part of the structure B of the present utility model.

[0019] In the figure: 1, detection table; 2, fixing block; 3, vacuum suction cup; 4, vacuum pump; 5, support frame; 6, electric slide rail; 7, slider; 8, top image collector; 9, side image collector; 10, control panel; 11, first electric telescopic rod; 12, connecting block; 13, second electric telescopic rod; 14, pressing block; 15, pressure sensor; 16, first servo motor; 17, air delivery pipe; 18, vertical plate; 19, second servo motor; 20, rotating block; 21, friction layer. Detailed Embodiment

[0020] In order to enable those skilled in the art of the present technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] It should be noted that in the description of the present utility model, the terms "first", "second", etc. in the specification, claims and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so as to implement the embodiments of the present utility model described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0022] In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present utility model and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0023] Moreover, in addition to being used to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to specific circumstances. In addition, the meaning of the term "plurality" should be two or more.

[0024] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The following will refer to the drawings Figures 1 - 5 and combine with the embodiments to detail the present utility model.

[0025] A detection mechanism for processing multi-layer printed circuit boards includes a detection table 1. A fixed block 2 is rotatably arranged on the detection table 1. Inside the fixed block 2, there are a number of vacuum suction cups 3. A number of vacuum suction cups 3 are all connected to a vacuum pump 4 through a pipeline. The bottom wall of the detection table 1 is provided with a servo motor 16 through a mounting frame. The fixed block 2 is arranged at the output end of the servo motor 16. The vacuum pump 4 is fixedly arranged on the outer side wall of the fixed block 2. A number of vacuum suction cups 3 are embedded inside the fixed block 2, and the suction ports face upward and are on the same horizontal plane as the top wall of the fixed block 2. A number of vacuum suction cups 3 are all connected to the vacuum pump 4 through air pipes 17.

[0026] Place the multi-layer circuit board on the top wall of the fixed block 2. Start the vacuum pump 4, and an adsorption force can be generated on the vacuum chuck 3 through the air delivery pipe 17. The vacuum chuck 3 can adsorb the circuit board, so that the circuit board is fixed on the top wall of the fixed block 2. Then start the first servo motor 16 to drive the fixed block 2 to rotate slowly, so that the circuit board can also rotate synchronously.

[0027] A support frame 5 is arranged on the top wall of the detection table 1. An electric slide rail 6 is fixedly arranged on the top wall of the support frame 5. A top image collector 8 is movably arranged on the electric slide rail 6 through a slider 7. A side image collector 9 and a control panel 10 are also arranged on the support frame 5.

[0028] Control the side image collector 9 to turn on through the control panel 10 to collect images of the circuit board. When the circuit board rotates following the fixed block 2, the side image collector 9 can completely collect the images on the side of the circuit board, improving the detection integrity.

[0029] The side image collector 9 is arranged above the side of the fixed block 2 and can collect images of the side of the circuit board placed on the top wall of the fixed block 2. A slider 7 is slidably arranged on the electric slide rail 6, and the top image collector 8 is fixedly arranged on the bottom wall of the slider 7 and can collect images of the upper and lower surfaces of the circuit board placed on the top wall of the fixed block 2. Start the electric slide rail 6 to make the slider 7 move on the electric slide rail 6, thereby driving the top image collector 8 to move along the direction of the electric slide rail 6 to completely collect images of the top surface of the circuit board.

[0030] Flip structures are symmetrically arranged on both sides of the fixed block 2. The flip structure includes a first electric telescopic rod 11. The support frame 5 is of an L-shaped structure, and a group of vertical plates 18 are fixedly arranged on its side wall. A second servo motor 19 is arranged on the outer wall of the group of vertical plates 18 through a mounting frame. The output end of the second servo motor 19 is fixedly provided with a rotating block 20. The first electric telescopic rod 11 is fixedly arranged on the side wall of the rotating block 20, and the telescopic end of the first electric telescopic rod 11 is fixedly provided with a connecting block 12.

[0031] After the image collection of the top surface of the circuit board is completed, the circuit board can be flipped over by using the flip structure for image collection of the bottom surface. First, turn off the vacuum pump 4 so that the vacuum chuck 3 cannot adsorb the circuit board. At this time, start the two first electric telescopic rods 11 to drive the connecting block 12 to approach the circuit board.

[0032] The connecting block 12 is of a U-shaped structure. Second electric telescopic rods 13 are symmetrically arranged up and down inside the connecting block 12. The two second electric telescopic rods 13 are oppositely arranged on the top wall and the bottom wall of the connecting block 12. The telescopic ends of the second electric telescopic rods 13 are fixedly provided with pressing blocks 14. A pressure sensor 15 is fixedly arranged on the outer wall of the pressing block 14, and a friction layer 21 is fixedly arranged on the outer wall of the pressure sensor 15.

[0033] After the side wall of the connecting block 12 comes into contact with the side wall of the circuit board, the telescopic movement of the first electric telescopic rod 11 is stopped, and the second electric telescopic rods 13 at the upper and lower ends are started, so that they drive the pressing block 14 to approach the top wall and the bottom wall of the circuit board. The friction layer 21 is in direct contact with the surface of the circuit board, which can enhance the friction and prevent the circuit board from slipping when it is flipped. When the pressure sensor 15 senses the pressure of the second electric telescopic rod 13 on the surface of the circuit board, when the pressure value conforms to the value set by the control panel 10, the control panel 10 sends an instruction to the second electric telescopic rod 13 to command it to stop telescoping. At this time, both ends of the circuit board have been fixed on the connecting block 12.

[0034] Start the second servo motor 19 to drive the rotating block 20 to rotate, and then drive the circuit board to rotate accordingly. In the preset scheme of the control panel 10, the second servo motor 19 rotates 180 degrees to flip the circuit board so that its bottom surface faces upward, which is convenient for subsequent image acquisition of the bottom surface of the circuit board. After the image acquisition is completed, the circuit board is released and taken down.

[0035] The control panel 10 is electrically connected to the vacuum pump 4, the electric slide rail 6, the top image collector 8, the side image collector 9, the first electric telescopic rod 11, the second electric telescopic rod 13, the pressure sensor 15, the first servo motor 16, and the second servo motor 19.

[0036] The control panel 10 is internally provided with a control system, a calculation system, an image recognition system, etc. The qualified circuit board images can be collected into the system of the control panel 10 in advance. By comparing the images collected from each circuit board with the qualified product images for comparison and recognition, the qualified or unqualified circuit boards can be detected, and the collected images are marked to facilitate the operator to know which part is unqualified.

[0037] Moreover, according to circuit boards of different thicknesses or specifications, all operation processes and steps can be preset on the control panel 10, and automatic detection can be realized under the control of the control panel 10 to improve the detection efficiency of the circuit board.

[0038] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A detection mechanism for processing multi-layer printed circuit boards, comprising a detection table (1), and a fixed block (2) is rotatably arranged on the detection table (1), characterized in that: Inside the fixed block (2), there are several vacuum suction cups (3), and several vacuum suction cups (3) are all connected to a vacuum pump (4). On the top wall of the detection table (1), there is a support frame (5). On the top wall of the support frame (5), an electric slide rail (6) is fixedly arranged. On the electric slide rail (6), a top image collector (8) is movably arranged through a slider (7). On the support frame (5), there is also a side image collector (9) and a control panel (10). On both sides of the fixed block (2), there are symmetrically arranged flipping structures. The flipping structure includes an electric telescopic rod one (11). The telescopic end of the electric telescopic rod one (11) is fixedly provided with a connecting block (12). Inside the connecting block (12), there are symmetrically arranged electric telescopic rods two (13) up and down. The telescopic end of the electric telescopic rod two (13) is fixedly provided with a pressing block (14). On the outer wall of the pressing block (14), a pressure sensor (15) is fixedly arranged.

2. The inspection mechanism for processing a multi-layer printed circuit board according to claim 1, wherein: On the bottom wall of the detection table (1), a servo motor one (16) is arranged through a mounting frame. The fixed block (2) is arranged at the output end of the servo motor one (16). The vacuum pump (4) is fixedly arranged on the outer side wall of the fixed block (2). Several vacuum suction cups (3) are embedded inside the fixed block (2), and the suction cup openings face upward and are on the same horizontal plane as the top wall of the fixed block (2). Several vacuum suction cups (3) are all connected to the vacuum pump (4) through air pipes (17).

3. The inspection mechanism for processing a multi-layer printed circuit board according to claim 2, wherein: The support frame (5) is an L-shaped structure, and a group of vertical plates (18) are fixedly arranged on its side wall. On the outer walls of a group of vertical plates (18), a servo motor two (19) is arranged through a mounting frame. The output end of the servo motor two (19) is fixedly provided with a rotating block (20). The electric telescopic rod one (11) is fixedly arranged on the side wall of the rotating block (20).

4. The inspection mechanism for processing a multi-layer printed circuit board according to claim 3, characterized in that: The connecting block (12) is a U-shaped structure. Two electric telescopic rods two (13) are oppositely arranged on the top wall and the bottom wall of the connecting block (12). On the outer wall of the pressure sensor (15), a friction layer (21) is fixedly arranged.

5. The inspection mechanism for processing a multi-layer printed circuit board according to claim 4, characterized in that: The side image collector (9) is arranged above the side of the fixed block (2) and can collect images of the side of the circuit board placed on the top wall of the fixed block (2). A slider (7) is slidably arranged on the electric slide rail (6). The top image collector (8) is fixedly arranged on the bottom wall of the slider (7) and can collect images of the upper and lower surfaces of the circuit board placed on the top wall of the fixed block (2).

6. The inspection mechanism for processing multi-layer printed circuit boards according to claim 5, characterized in that: The control panel (10) is electrically connected to the vacuum pump (4), the electric slide rail (6), the top image collector (8), the side image collector (9), the electric telescopic rod one (11), the electric telescopic rod two (13), the pressure sensor (15), the servo motor one (16), and the servo motor two (19).

Images