PCB automatic optical detection device

Abstract

The utility model discloses a kind of PCB automatic optical detection devices, it is related to PCB detection technical field, including bottom plate and vertical rod, the vertical rod is fixedly arranged on the upper surface side of bottom plate, the upper end of vertical rod sliding sleeve is sleeved with sliding sleeve, the inside one side of sliding sleeve is provided with the first limiting mechanism of limiting sliding sleeve nature to vertical rod movement, the front side of sliding sleeve is fixedly provided with fixed rod, the rod wall of fixed rod is rotatably sleeved with rotating block, the one side of rotating block is fixedly provided with horizontal plate, the front side of sliding sleeve is provided with the second limiting mechanism of limiting rotating block rotation, the surface of horizontal plate is provided with through slot, the middle part of through slot is fixedly installed with optical detection assembly, the inside both sides of through slot are slidably provided with receiving shell. The utility model can be stored after use Protect optical detection assembly, effectively prevent the surface area of optical detection assembly or be collided, can maintain the good detection accuracy of optical detection assembly.

Description

Technical Field

[0001] This utility model relates to the field of PCB board inspection technology, specifically to an automatic optical inspection device for PCB boards. Background Technology

[0002] In the PCB manufacturing process, automatic optical inspection devices are key equipment to ensure product quality. They automatically identify defects on the PCB surface (such as poor solder joints, short circuits, foreign matter residues, etc.) through optical inspection components (such as cameras, lenses, light sources, etc.).

[0003] In existing technologies, optical inspection components are usually fixedly mounted on the frame of the inspection device. When the equipment is not in use or during maintenance, the optical inspection components are directly exposed to the external environment, which can easily lead to dust accumulation on the surface of the optical lens, affecting the image clarity and thus reducing the inspection accuracy, requiring frequent cleaning and maintenance. If the equipment is in a complex environment such as a workshop, the optical inspection components may suffer physical damage due to collisions, falling foreign objects, etc., increasing equipment maintenance costs and downtime. Utility Model Content

[0004] In view of the problems existing in the above-mentioned automatic optical inspection devices for PCB boards, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide an automatic optical inspection device for PCB boards, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic optical inspection device for PCB boards includes a base plate and a vertical rod. The vertical rod is fixedly mounted on one side of the upper surface of the base plate. A sliding sleeve is slidably fitted onto the upper end of the vertical rod. A first limiting mechanism restricting the movement of the vertical rod by the sliding sleeve is provided on one side of the sliding sleeve. A fixed rod is fixedly mounted on the front side of the sliding sleeve. A rotating block is rotatably fitted onto the wall of the fixed rod. A horizontal plate is fixedly mounted on one side of the rotating block. A second limiting mechanism restricting the rotation of the rotating block is provided on the front side of the sliding sleeve. A through groove is formed on the surface of the horizontal plate. An optical inspection component is fixedly installed in the middle of the through groove. Storage shells are slidably arranged on both sides of the inside of the through groove. A strip-shaped opening is formed on the front side of the through groove. Two movable blocks are slidably arranged inside the strip-shaped opening. One side of each of the two movable blocks is fixedly connected to a corresponding storage shell. A transmission mechanism driving the two movable blocks to move in opposite directions is provided on the inside of the strip-shaped opening.

[0008] Preferably, the first limiting mechanism includes a first threaded rod and a clamping plate. The clamping plate is slidably disposed inside the sliding sleeve. The clamping plate abuts against the wall of the vertical rod. A first threaded hole is opened on the side wall of the sliding sleeve away from the horizontal plate. The first threaded rod is threadedly sleeved inside the first threaded hole. One end of the first threaded rod is rotatably connected to the clamping plate.

[0009] Preferably, the second limiting mechanism includes a fixed plate and a second threaded rod. The fixed plate is fixedly disposed on the upper front side of the sliding sleeve. A second threaded hole is opened in the middle of the fixed plate. The second threaded rod is threadedly sleeved inside the second threaded hole. A third threaded hole is opened on the upper surface of the horizontal plate at a position corresponding to the second threaded rod. The lower end of the threaded rod is threadedly connected to the third threaded hole.

[0010] Preferably, the transmission mechanism includes a bidirectional lead screw, which is rotatably disposed inside the strip-shaped opening. The two movable blocks are respectively threadedly connected to both ends of the bidirectional lead screw. A first bevel gear is fixedly sleeved at the front end of the fixed rod. One end of the bidirectional lead screw extends to the front side of the first bevel gear and is fixedly sleeved with a second bevel gear. The first bevel gear and the second bevel gear are meshed and connected.

[0011] Preferably, the sidewall of the sliding sleeve is provided with through holes on both sides of the first threaded hole, and a sliding rod is slidably disposed inside the through hole, one end of the sliding rod being fixedly connected to the clamping plate.

[0012] Preferably, the longitudinal section of both the movable block and the strip opening is rectangular, and the upper and lower sides of the movable block abut against the inner wall of the strip opening.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. In this utility model, by loosening the second threaded rod, the restriction on the horizontal plate is released, and the horizontal plate is rotated around the fixed rod as an axis. During this process, the second bevel gear revolves relative to the first bevel gear that is fixedly set, so that the second bevel gear rotates on its own axis, which can drive the bidirectional lead screw to rotate. The bidirectional lead screw drives the two movable blocks to move, so that the two movable blocks drive the storage shell to move towards each other. When the horizontal plate is rotated to a vertical state, the two storage shells cover the outside of the optical detection component, thus providing comprehensive protection for the optical detection component.

[0015] 2. In this utility model, by rotating the first threaded rod, the clamping plate can be moved, thereby releasing the limit on the sliding sleeve, which means that the height of the optical detection component can be adjusted. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of an automatic optical inspection device for PCB boards proposed in this utility model;

[0018] Figure 2 for Figure 1 Internal structure diagram;

[0019] Figure 3 for Figure 1 Enlarged structural diagram of part A in the middle section;

[0020] Figure 4 for Figure 1 A 3D view of the storage shell.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base plate; 2. Second threaded rod; 3. Vertical rod; 4. Sliding sleeve; 5. Clamping plate; 6. Threaded rod; 7. Sliding rod; 8. Optical detection assembly; 9. Storage shell; 10. Movable block; 11. Horizontal plate; 12. Bidirectional lead screw; 13. Fixed rod; 14. First bevel gear; 15. Rotating block; 16. Second bevel gear; 17. Fixed plate. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model discloses an automatic optical inspection device for PCB boards.

[0025] Example 1

[0026] Reference Figures 1-4An automatic optical inspection device for PCB boards includes a base plate 1 and a vertical rod 3. The vertical rod 3 is fixedly disposed on one side of the upper surface of the base plate 1. A sliding sleeve 4 is slidably sleeved on the upper end of the vertical rod 3. A first limiting mechanism is provided on one side of the sliding sleeve 4 to restrict the movement of the sliding sleeve 4 relative to the vertical rod 3. A fixed rod 13 is fixedly disposed on the front side of the sliding sleeve 4. A rotating block 15 is rotatably sleeved on the wall of the fixed rod 13. A horizontal plate 11 is fixedly disposed on one side of the rotating block 15. A second limiting mechanism is provided on the front side of the sliding sleeve 4 to restrict the rotation of the rotating block 15. A through groove is opened on the surface of the horizontal plate 11. An optical inspection component 8 is fixedly installed in the middle of the through groove. A storage shell 9 is slidably disposed on both sides of the inside of the through groove. A strip-shaped opening is opened on the front side of the through groove. Two movable blocks 10 are slidably disposed inside the strip-shaped opening. One side of the two movable blocks 10 is fixedly connected to the corresponding storage shell 9. A transmission mechanism is provided on the inside of the strip-shaped opening to drive the two movable blocks 10 to move in opposite directions.

[0027] Example 2

[0028] Reference Figures 1-4 The first limiting mechanism includes a first threaded rod 6 and a clamping plate 5. The clamping plate 5 is slidably disposed inside the sliding sleeve 4. The clamping plate 5 abuts against the rod wall of the vertical rod 3. A first threaded hole is opened on the side wall of the sliding sleeve 4 away from the horizontal plate 11. The first threaded rod 6 is threadedly sleeved inside the first threaded hole. One end of the first threaded rod 6 is rotatably connected to the clamping plate 5. Through holes are opened on the side wall of the sliding sleeve 4 on both sides of the first threaded hole. A sliding rod 7 is slidably disposed inside the through hole. One end of the sliding rod 7 is fixedly connected to the clamping plate 5, so that the clamping plate 5 can slide stably.

[0029] Example 3

[0030] Reference Figures 1-4 The second limiting mechanism includes a fixed plate 17 and a second threaded rod 2. The fixed plate 17 is fixedly installed on the upper front side of the sliding sleeve 4. A second threaded hole is opened in the middle of the fixed plate 17. The second threaded rod 2 is threadedly sleeved inside the second threaded hole. A third threaded hole is opened on the upper surface of the horizontal plate 11 at a position corresponding to the second threaded rod 2. The lower end of the second threaded rod 2 is threadedly connected to the third threaded hole.

[0031] Example 4

[0032] Reference Figures 1-4The transmission mechanism includes a bidirectional lead screw 12, which is rotatably mounted inside the slot. Two movable blocks 10 are threadedly connected to both ends of the bidirectional lead screw 12. A first bevel gear 14 is fixedly sleeved at the front end of the fixed rod 13. One end of the bidirectional lead screw 12 extends to the front side of the first bevel gear 14 and is fixedly sleeved with a second bevel gear 16. The first bevel gear 14 and the second bevel gear 16 are meshed. The longitudinal sections of the movable blocks 10 and the slot are both rectangular. The upper and lower sides of the movable blocks 10 abut against the inner wall of the slot, so that the movable blocks 10 can slide stably.

[0033] In this utility model, during use, the height of the optical detection component 8 is first adjusted according to the detection requirements of the PCB board: the first threaded rod 6 is rotated to drive the clamping plate 5 to move away from the vertical rod 3, the clamping limit of the clamping plate 5 on the vertical rod 3 is released, the sliding sleeve 4 is pushed to slide up and down along the vertical rod 3 to a suitable position, and then the first threaded rod 6 is rotated in the opposite direction to make the clamping plate 5 re-abut against the vertical rod 3 and clamp it, thus completing the height fixation (the sliding rod 7 slides synchronously with the clamping plate 5 to ensure that the clamping plate 5 moves smoothly).

[0034] During testing, the horizontal plate 11 is in a horizontal state, and the lower end of the second threaded rod 2 is threadedly connected to the third threaded hole on the horizontal plate 11 to lock the rotating block 15 and prevent the horizontal plate 11 from rotating. At this time, the two storage shells 9 are in the open state on both sides of the through slot, and the optical inspection component 8 is exposed to the outside, which can perform optical inspection on the PCB board conveyed below.

[0035] After the test is completed, when it is necessary to store and protect the optical detection component 8, loosen the second threaded rod 2 to disengage it from the third threaded hole, release the limit on the horizontal plate 11, and rotate the horizontal plate 11 upward with the fixed rod 13 as the axis. During the rotation, the bidirectional lead screw 12, which rotates synchronously with the rotating block 15, drives the second bevel gear 16 to revolve around the fixed first bevel gear 14. Since the two are meshed, the second bevel gear 16 rotates on its own axis, thereby driving the bidirectional lead screw 12 to rotate.

[0036] When the bidirectional lead screw 12 rotates, the movable blocks 10 at both ends (which cannot rotate due to the rectangular slot) slide towards each other along the slot, causing the two storage shells 9 to move towards the center of the through groove. When the horizontal plate 11 rotates to the vertical position, the two storage shells 9 are just connected and closed, completely covering the optical detection component 8, achieving dustproof and anti-collision protection. At this time, the second threaded rod 2 can be screwed in again to limit the rotation of the horizontal plate 11, ensuring the stability of the storage state.

[0037] This device utilizes a linkage design between the rotation of the horizontal plate and the closing of the storage shell to achieve the storage and protection of the optical detection components without additional operation. It also features height adjustment to adapt to different detection scenarios and effectively maintain the cleanliness and detection accuracy of the optical detection components.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic optical inspection device for PCB boards, comprising a base plate (1) and a vertical rod (3), characterized in that, The vertical rod (3) is fixedly mounted on one side of the upper surface of the base plate (1). A sliding sleeve (4) is slidably sleeved on the upper end of the vertical rod (3). A first limiting mechanism is provided on one side of the inner side of the sliding sleeve (4) to restrict the movement of the sliding sleeve (4) relative to the vertical rod (3). A fixing rod (13) is fixedly mounted on the front side of the sliding sleeve (4). A rotating block (15) is rotatably sleeved on the wall of the fixing rod (13). A horizontal plate (11) is fixedly mounted on one side of the rotating block (15). A limiting rotating block is provided on the front side of the sliding sleeve (4). (15) A second limiting mechanism for rotation, a through groove is provided on the surface of the horizontal plate (11), an optical detection component (8) is fixedly installed in the middle of the through groove, a storage shell (9) is slidably arranged on both sides inside the through groove, a strip-shaped opening is provided on the front side of the through groove, two movable blocks (10) are slidably arranged inside the strip-shaped opening, one side of the two movable blocks (10) is fixedly connected to the corresponding storage shell (9), and a transmission mechanism is provided on the inner side of the strip-shaped opening to drive the two movable blocks (10) to move in opposite directions.

2. The automatic optical inspection device for PCB boards according to claim 1, characterized in that, The first limiting mechanism includes a first threaded rod (6) and a clamping plate (5). The clamping plate (5) is slidably disposed inside the sliding sleeve (4). The clamping plate (5) abuts against the wall of the vertical rod (3). The sliding sleeve (4) has a first threaded hole on the side wall away from the horizontal plate (11). The first threaded rod (6) is threaded into the inside of the first threaded hole. One end of the first threaded rod (6) is rotatably connected to the clamping plate (5).

3. The automatic optical inspection device for PCB boards according to claim 1, characterized in that, The second limiting mechanism includes a fixed plate (17) and a second threaded rod (2). The fixed plate (17) is fixedly disposed on the upper front side of the sliding sleeve (4). A second threaded hole is provided in the middle of the fixed plate (17). The second threaded rod (2) is threadedly sleeved inside the second threaded hole. A third threaded hole is provided on the upper surface of the horizontal plate (11) at a position corresponding to the second threaded rod (2). The lower end of the second threaded rod (2) is threadedly connected to the third threaded hole.

4. The automatic optical inspection device for PCB boards according to claim 1, characterized in that, The transmission mechanism includes a bidirectional lead screw (12), which is rotatably disposed inside the strip-shaped opening. Two movable blocks (10) are threadedly connected to both ends of the bidirectional lead screw (12). A first bevel gear (14) is fixedly sleeved at the front end of the fixed rod (13). One end of the bidirectional lead screw (12) extends to the front side of the first bevel gear (14) and is fixedly sleeved with a second bevel gear (16). The first bevel gear (14) and the second bevel gear (16) are meshed and connected.

5. The automatic optical inspection device for PCB boards according to claim 2, characterized in that, The sidewall of the sliding sleeve (4) is provided with through holes on both sides of the first threaded hole. A sliding rod (7) is slidably arranged inside the through hole, and one end of the sliding rod (7) is fixedly connected to the clamping plate (5).

6. The automatic optical inspection device for PCB boards according to claim 1, characterized in that, The longitudinal section of both the movable block (10) and the strip opening is rectangular, and the upper and lower sides of the movable block (10) abut against the inner wall of the strip opening.

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