PCB edge detection structure

Abstract

The utility model relates to PCB edge detection technical field especially relates to a kind of PCB edge detection structure.The utility model discloses body, the first motor of the surface of one end of body is fixed, and the transmission structure connected to the output end of first motor;The other end of transmission structure is connected with driving wheel, and the outer surface of driving wheel is equipped with inner tooth belt, the other end inside of inner tooth belt is connected with driven wheel, the top side of body is rotatably connected with runner, and the one end center of runner is fixedly connected with threaded rod, threaded rod outer surface is equipped with threaded tube.The utility model is equipped with runner, threaded rod, threaded tube, adjusting side plate and linkage rod etc. structure, it is adjusted according to different PCB board size when subsequent PCB board is detected and handled, and then the whole device can be applicable to the PCB board detection of different size, overall have higher flexibility and practicality, more wide application range, improve the accuracy of subsequent detection.

Description

Technical Field

[0001] This utility model relates to the field of PCB edge detection technology, and in particular to a PCB edge detection structure. Background Technology

[0002] PCB is the core component of electronic devices. Its edge dimensional accuracy and edge defects, such as burrs, chipped edges, and gaps, directly affect the fit of subsequent assembly and the operational stability of electronic devices. Therefore, PCB edge inspection is a key quality control process in manufacturing.

[0003] Currently, common PCB edge inspection devices typically use a fixed structure to mount the inspection head on the PCB edge when performing burr detection. This method limits the edge inspection to only one size of PCB. However, due to the diversity of PCB sizes, a single-size inspection structure has limitations in subsequent use, making it difficult to apply to different sizes of PCBs. This results in limited applicability and poor overall practicality. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0005] A PCB edge detection structure includes a body, a first motor fixed to one end surface of the body, and a transmission structure connected to the output end of the first motor.

[0006] The other end of the transmission structure is connected to a drive wheel, and the outer surface of the drive wheel is fitted with an internal toothed belt. The inner side of the other end of the internal toothed belt is connected to a driven wheel. A rotating wheel is rotatably connected to one side of the top of the machine body, and a threaded rod is fixedly connected to the center of one end of the rotating wheel. A threaded tube is fitted on the outer surface of the threaded rod, and an adjusting side plate is fixedly installed at the other end of the threaded tube. A detection head is fixedly installed on the surface of the adjusting side plate away from the threaded tube. Linkage rods are distributed on one side of the threaded tube, and a positioning hole is opened on one end surface of the machine body.

[0007] Preferably, the transmission structure includes a transmission roller and a conveyor belt, the transmission roller is connected to the output of the first motor, and the outer surface of the transmission roller is fitted with a conveyor belt.

[0008] Preferably, a positioning rod passes through the inner side of the rotating wheel, and an auxiliary sliding plate is sleeved on the outer ring surface of one end of the positioning rod, with a return spring connected to the surface of one end of the auxiliary sliding plate.

[0009] Preferably, a top frame is fixed to the top of the machine body, and a second motor is fixed to the side wall of the top frame, with a bidirectional screw connected to the output end of the second motor.

[0010] Preferably, the outer surface of the bidirectional screw is fitted with a threaded sleeve, and a push rod is rotatably connected to the bottom of the threaded sleeve. The other end of the push rod is rotatably connected to a lifting seat, and a lower pressure roller is rotatably connected to the inner bottom of the lifting seat.

[0011] Preferably, one end of the linkage rod is rotatably connected to the machine body via a connecting ear, and the other end of the linkage rod is rotatably connected to the adjusting side plate via a connecting ear.

[0012] Preferably, the positioning rod is slidably connected to the rotating wheel via an auxiliary sliding plate, and the outer diameter of the positioning rod is adapted to the inner diameter of the positioning hole.

[0013] As an improvement to the above technical solution, the structure of the set wheel, threaded rod, threaded tube, adjusting side plate and linkage rod can be easily adjusted according to different PCB board sizes when inspecting and processing the PCB board, so that the whole device can be used to inspect PCB boards of different sizes.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model, through its structure including a rotating wheel, threaded rod, threaded tube, adjusting side plate, and linkage rod, allows for convenient adjustment based on different PCB board sizes during subsequent PCB board inspection and processing. This enables the entire device to be applicable to the inspection of PCB boards of different sizes, resulting in greater flexibility and practicality, a wider range of applications, and improved accuracy in subsequent inspections.

[0016] 2. This utility model, through its structure including a bidirectional screw, push rod, lifting seat, and lower pressure roller, facilitates effective clamping and limiting of the PCB board to be inspected, ensuring the stability of the PCB board during subsequent lateral transport, preventing positional shifts during subsequent inspection, improving the accuracy of subsequent inspection, reducing errors, and making it more practical. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the body of this utility model;

[0019] Figure 3 This is a side view of the structure of the body of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 This is a side view of the adjustable side plate structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the top frame structure of this utility model from below.

[0023] Reference numerals: 1. Machine body; 2. First motor; 3. Drive roller; 4. Conveyor belt; 5. Drive wheel; 6. Internal toothed belt; 7. Driven wheel; 8. Rotary wheel; 9. Threaded rod; 10. Threaded tube; 11. Adjusting side plate; 12. Detection head; 13. Linkage rod; 14. Positioning hole; 15. Positioning rod; 16. Auxiliary slide plate; 17. Return spring; 18. Top frame; 19. Second motor; 20. Bidirectional screw; 21. Threaded sleeve; 22. Push rod; 23. Lifting seat; 24. Lower pressure roller. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0025] Reference Figure 1-6 A PCB edge detection structure includes a body 1, a first motor 2 fixed to one end surface of the body 1, and a transmission structure connected to the output end of the first motor 2. The transmission structure includes a transmission roller 3 and a conveyor belt 4. The transmission roller 3 is connected to the output of the first motor 2, and the outer surface of the transmission roller 3 is covered with the conveyor belt 4.

[0026] The other end of the transmission structure is connected to the drive wheel 5, and the outer surface of the drive wheel 5 is fitted with an internal toothed belt 6. The inner side of the other end of the internal toothed belt 6 is connected to the driven wheel 7. The top side of the machine body 1 is rotatably connected to a rotating wheel 8, and a threaded rod 9 is fixedly connected to the center of one end of the rotating wheel 8. The outer surface of the threaded rod 9 is fitted with a threaded tube 10, and the other end of the threaded tube 10 is fixedly fitted with an adjusting side plate 11. The surface of the adjusting side plate 11 away from the threaded tube 10 is fixedly fitted with a detection head 12. A linkage rod 13 is distributed on one side of the threaded tube 10, and a positioning hole 14 is opened on one end surface of the machine body 1.

[0027] In this embodiment, when edge detection processing of PCBs of different sizes is required, the rotating wheel 8 is rotated in advance. The rotation of the rotating wheel 8 causes the threaded rod 9, which is fixedly connected to one end, to rotate as well. Since the threaded rod 9 forms a threaded connection with the threaded tube 10 through a threaded groove, the threaded tube 10 also moves laterally as the threaded rod 9 rotates. This lateral movement of the threaded tube 10 pushes the adjusting side plate 11. As the adjusting side plate 11 moves, the detection heads symmetrically arranged on one side also move, thereby adjusting the position of the detection heads 12. This facilitates subsequent detection processing of PCBs of different sizes. It is worth noting that as the adjusting side plate 11 moves, it pulls the linkage rod 13, causing the linkage... The other end of the rod 13 rotates along the inner side wall of the top of the machine body 1 via a connecting ear to improve the stability of the adjustment side plate 11 during movement. After the position of the detection head 12 is adjusted, the PCB board to be detected is placed on the upper surface of the conveyor belt 4. At this time, the first motor 2 works and the transmission roller 3 connected to its output rotates accordingly. Then, the rotation of the transmission roller 3 causes the drive wheel 5 to rotate as well. The rotation of the drive wheel 5 then drives the internal toothed belt 6. The movement of the internal toothed belt 6 causes the driven wheel 7 connected to its other end to rotate as well. The rotation of the drive wheel 5 and the driven wheel 7 then drives the rotation of the two transmission rollers 3. The rotation of the two transmission rollers 3 drives the movement of the conveyor belt 4, thus achieving the lateral conveying of the PCB board.

[0028] In this utility model, a positioning rod 15 passes through the inner side of the rotating wheel 8, and an auxiliary sliding plate 16 is sleeved on the outer ring surface of one end of the positioning rod 15. A return spring 17 is connected to one end surface of the auxiliary sliding plate 16.

[0029] In this embodiment, after the rotating wheel 8 has finished rotating, the lateral tension applied to the positioning rod 15 is released. At this time, the reverse force generated by the deformation of the return spring 17 will push the auxiliary slide plate 16 in the opposite direction, thereby causing the auxiliary slide plate 16 to move laterally inside the rotating wheel 8. As the auxiliary slide plate 16 moves laterally, the positioning rod 15 also moves synchronously, thereby inserting one end of the positioning rod 15 into the inside of the positioning hole 14, which facilitates the subsequent positioning of the rotating wheel 8.

[0030] In this utility model, a top frame 18 is fixedly provided at the top of the body 1, and a second motor 19 is fixedly provided on the side wall of the top frame 18. The output end of the second motor 19 is connected to a bidirectional screw 20.

[0031] In this embodiment, the second motor 19 operates to cause the bidirectional screw 20 connected to its output end to rotate, thereby facilitating the subsequent use of the movement of the bidirectional screw 20 to drive the structure to move.

[0032] In this utility model, the outer surface of the bidirectional screw 20 is fitted with a threaded sleeve 21, and the bottom of the threaded sleeve 21 is rotatably connected to a push rod 22. The other end of the push rod 22 is rotatably connected to a lifting seat 23, and the bottom inner side of the lifting seat 23 is rotatably connected to a lower pressure roller 24.

[0033] In this embodiment, since the threaded sleeve 21 is threadedly connected to the bidirectional screw 20 through the threaded hole on its inner side, the two threaded sleeves 21 can move towards each other as the bidirectional screw 20 rotates. As the threaded sleeve 21 moves, it pushes the push rod 22 rotatably connected to its bottom. At this time, the push rod 22 pushes the lifting seat 23 rotatably connected to its other end, thereby realizing the longitudinal movement of the lifting seat 23. As the lifting seat 23 moves longitudinally, the lower pressure roller 24 also moves longitudinally. The contact between the lower pressure roller 24 and the PCB board is used to achieve the lower pressure limit treatment of the PCB board, ensuring its stability in the subsequent testing process. Since the lower pressure roller 24 is rotatably connected to the lifting seat 23 through the bearing seat, the setting of the lower pressure roller 24 can assist the PCB board in lateral conveying when performing the lower pressure limit treatment.

[0034] In this utility model, one end of the linkage rod 13 is rotatably connected to the body 1 via a connecting ear, and the other end of the linkage rod 13 is rotatably connected to the adjusting side plate 11 via a connecting ear.

[0035] In this embodiment, when the adjusting side plate 11 is pushed, it will drive the linkage rod 13 to rotate accordingly, thereby using the movement of the linkage rods 13 on both sides to improve the stability of the adjusting side plate 11 during the movement process.

[0036] In this utility model, the positioning rod 15 is slidably connected to the rotating wheel 8 through the auxiliary sliding plate 16, and the outer diameter of the positioning rod 15 is adapted to the inner diameter of the positioning hole 14.

[0037] In this embodiment, since the size of the positioning rod 15 is compatible with the size of the positioning hole 14, the positioning process of the rotating wheel 8 can be achieved when one end of the positioning rod 15 is inserted into the inside of the positioning hole 14.

[0038] The usage and working principle of this PCB edge detection structure are as follows: When edge detection of PCBs of different sizes is required, the rotating wheel 8 is pre-rotated. The rotation of the wheel 8 causes the threaded rod 9, which is fixedly connected to one end, to rotate as well. Since the threaded rod 9 is threadedly connected to the threaded tube 10 via a threaded groove, the threaded tube 10 also moves laterally with the rotation of the threaded rod 9. This lateral movement of the threaded tube 10 pushes the adjusting side plate 11. As the adjusting side plate 11 moves, the detection heads symmetrically arranged on one side also move accordingly, thus achieving the detection head 12's... After the position of the detection head 12 is adjusted, the lateral tension applied to the positioning rod 15 is released. At this time, the reverse force generated by the deformation of the return spring 17 will push the auxiliary slide plate 16 in the opposite direction, thereby causing the auxiliary slide plate 16 to move laterally inside the turntable 8. As the auxiliary slide plate 16 moves laterally, the positioning rod 15 also moves synchronously, thereby inserting one end of the positioning rod 15 into the inside of the positioning hole 14, which facilitates the subsequent positioning of the turntable 8. Then, the PCB board to be tested is placed on the upper surface of the conveyor belt 4. At this time, the first motor 2 works, causing the connected transmission roller 3 to move accordingly. The drive roller 3 rotates, causing the drive wheel 5 to rotate as well. This rotation of the drive wheel 5 then moves the internal toothed belt 6. The internal toothed belt 6, in turn, causes the driven wheel 7 connected to its other end to rotate. The rotation of the drive wheel 5 and the driven wheel 7 then rotates the drive rollers 3 on both sides. The rotation of the two drive rollers 3 thus moves the conveyor belt 4, enabling the lateral transport of the PCB board. During this lateral transport, the second motor 19 operates, causing the bidirectional screw 20 to rotate. The rotation of the bidirectional screw 20 causes the threaded sleeves 21 on both sides to move in opposite directions. As the threaded sleeve 21 moves, it pushes the push rod 22, which is rotatably connected to its bottom. At this time, the push rod 22 pushes the lifting seat 23, which is rotatably connected to its other end, thereby realizing the longitudinal movement of the lifting seat 23. With the longitudinal movement of the lifting seat 23, the lower pressure roller 24 also moves longitudinally. The contact between the lower pressure roller 24 and the PCB board is used to achieve the lower pressure limit treatment of the PCB board, ensuring its stability in the subsequent inspection process. Since the lower pressure roller 24 is rotatably connected to the lifting seat 23 through the bearing seat, the setting of the lower pressure roller 24 can assist the lateral conveying of the PCB board when performing the lower pressure limit treatment.

[0039] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A PCB edge detection structure, comprising a body (1), a first motor (2) fixedly mounted on one end surface of the body (1), and a transmission structure connected to the output end of the first motor (2); Its features are: The other end of the transmission structure is connected to a drive wheel (5), and the outer surface of the drive wheel (5) is fitted with an internal toothed belt (6). The inner side of the other end of the internal toothed belt (6) is connected to a driven wheel (7). A rotating wheel (8) is rotatably connected to one side of the top of the machine body (1), and a threaded rod (9) is fixedly connected to the center of one end of the rotating wheel (8). A threaded tube (10) is fitted on the outer surface of the threaded rod (9), and an adjusting side plate (11) is fixedly provided at the other end of the threaded tube (10). A detection head (12) is fixedly provided on the surface of the adjusting side plate (11) away from the threaded tube (10). A linkage rod (13) is distributed on one side of the threaded tube (10), and a positioning hole (14) is opened on one end surface of the machine body (1).

2. The PCB edge detection structure according to claim 1, characterized in that: The transmission structure includes a transmission roller (3) and a conveyor belt (4). The transmission roller (3) is connected to the output of the first motor (2), and the outer surface of the transmission roller (3) is fitted with the conveyor belt (4).

3. The PCB edge detection structure according to claim 1, characterized in that: A positioning rod (15) passes through the inner side of the rotating wheel (8), and an auxiliary sliding plate (16) is sleeved on the outer ring surface of one end of the positioning rod (15). A return spring (17) is connected to one end of the auxiliary sliding plate (16).

4. The PCB edge detection structure according to claim 1, characterized in that: The top of the body (1) is fixedly provided with a top frame (18), and a second motor (19) is fixedly provided on the side wall of the top frame (18). The output end of the second motor (19) is connected to a bidirectional screw (20).

5. The PCB edge detection structure according to claim 4, characterized in that: The outer surface of the bidirectional screw (20) is fitted with a threaded sleeve (21), and a push rod (22) is rotatably connected to the bottom of the threaded sleeve (21). The other end of the push rod (22) is rotatably connected to a lifting seat (23), and a lower pressure roller (24) is rotatably connected to the inner bottom of the lifting seat (23).

6. The PCB edge detection structure according to claim 1, characterized in that: One end of the linkage rod (13) is rotatably connected to the body (1) via a connecting ear, and the other end of the linkage rod (13) is rotatably connected to the adjusting side plate (11) via a connecting ear.

7. The PCB edge detection structure according to claim 3, characterized in that: The positioning rod (15) is slidably connected to the rotating wheel (8) through the auxiliary sliding plate (16), and the outer diameter of the positioning rod (15) is compatible with the inner diameter of the positioning hole (14).

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