Double-shaft automatic PCB thickness measuring device

Abstract

The utility model relates to the technical field of PCB thickness measurement, and discloses a double-shaft automatic PCB thickness measuring device comprising a cabinet body, the inner wall of the cabinet body is fixedly connected with a driving assembly for driving subsequent parts, the inner wall of the driving assembly is rotatably connected with a swing rod, the outer part of the swing rod is fixedly connected with a rack plate, and the rack plate is fixedly connected with the rack plate. A plurality of rotating wheels are slidably connected to the outer portion of the swing rod, sliding sleeves are fixedly connected to the two ends of each rotating wheel, gears are rotatably connected to the inner walls of the sliding sleeves, the rack plates are in meshed connection with the gears, and reverse lead screws are fixed to the inner walls of the gears. According to the PCB thickness measuring device, the oscillating rod is connected with the rack plate, so that the rack plate is meshed with the gear to drive the reverse screw rod to rotate, and due to the characteristics of the reverse screw rod, the movable plates at the two ends move oppositely, so that the PCB is quickly positioned, the thickness measuring efficiency is improved, and the thickness measuring accuracy is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board thickness measurement, in particular to a dual-axis automatic PCB board thickness measurement device. Background Art

[0002] The dual-axis automated PCB thickness gauge is a device specifically designed for accurately measuring the thickness of printed circuit boards (PCBs). Utilizing automated control and dual-axis measurement principles, it quickly and accurately measures thickness at various locations on the PCB, effectively improving the efficiency and accuracy of quality inspections during PCB production.

[0003] The main components of the dual-axis automated PCB thickness gauge include a dual-axis measuring mechanism and a dual-axis measuring mechanism. The dual-axis (X-axis and Y-axis) measuring mechanism moves to position the measuring axis above the preset measuring point. The displacement sensor on the measuring axis (such as a laser or inductive displacement sensor) transmits a signal to the surface of the PCB board and then receives the reflected or sensed signal to determine the distance from the measuring axis to the PCB board surface. The displacement sensor transmits the distance data to the data acquisition card, which converts the analog signal into a digital signal and then sends it to a computer or microcontroller.

[0004] In the existing technology, some dual-axis automated PCB thickness measurement devices are unable to stably and effectively position the PCB board during the thickness measurement preparation process. The inability to effectively position the PCB board during the thickness measurement preparation stage will reduce measurement accuracy and work efficiency. Therefore, a dual-axis automated PCB thickness measurement device is proposed to solve the above problems. Utility Model Content

[0005] In order to remedy the above shortcomings, the present invention provides a dual-axis automatic PCB board thickness measurement device, which aims to improve the problem in the prior art that the PCB board cannot be stably and effectively positioned in the process of preparing for thickness measurement.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A dual-axis automated PCB thickness measuring device comprises a cabinet, the inner wall of the cabinet being fixedly connected to a drive assembly for driving subsequent components, the inner wall of the drive assembly being rotatably connected to a swing arm, the exterior of the swing arm being fixedly connected to a rack plate, the exterior of the swing arm being slidably connected to a plurality of rotating wheels, both ends of the plurality of rotating wheels being fixedly connected to sliding sleeves, the inner wall of the sliding sleeve being rotatably connected to a gear, the rack plate being meshed with the gear, the inner wall of the gear being fixed to a reverse screw rod, and the exterior of the cabinet being rotatably connected to a moving assembly for moving subsequent components;

[0008] As a further description of the above technical solution:

[0009] The drive assembly includes a motor, a driving end of the motor is fixedly connected to a fixing plate, the outside of the fixing plate is fixedly connected to a connecting plate, the outside of the motor is fixedly connected to the inner wall of the cabinet, and the outside of the swing arm is rotatably connected to the inner wall of the connecting plate;

[0010] As a further description of the above technical solution:

[0011] The moving assembly includes two moving plates, the inner walls of the two moving plates are fixedly connected to a plurality of fixed sleeves, the inner walls of the plurality of fixed sleeves are slidably connected to sliding columns, the outsides of the sliding columns are fixedly connected to two elastic members, one end of the sliding column away from the two elastic members is fixedly connected to a rubber plate, and the outsides of the moving plates are slidably connected to the outside of the cabinet;

[0012] As a further description of the above technical solution:

[0013] The outside of the cabinet is fixedly connected to a protective cover, and the inner wall of the cabinet is fixedly connected to two mechanical arms;

[0014] As a further description of the above technical solution:

[0015] The inner wall of the cabinet is rotatably connected to the cabinet door, and the four corners of the bottom of the cabinet are fixedly connected to supporting feet;

[0016] As a further description of the above technical solution:

[0017] One end of the two elastic members away from the sliding column is fixedly connected to the inner wall of the fixed sleeve, and the outer portion of the reverse screw rod is rotatably connected to the inner wall of the movable plate;

[0018] As a further description of the above technical solution:

[0019] The outer portion of the movable plate contacts the inner wall of the cabinet, and the outer portion of the reverse screw is rotationally connected to the inner wall of the cabinet;

[0020] As a further description of the above technical solution:

[0021] The outer portion of the fixing plate is slidably connected to the outer portion of the cabinet, and the outer portion of the connecting plate is slidably connected to the outer portion of the cabinet.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the present invention, in daily use, the motor drives the fixed plate to rotate the connecting plate. When the connecting plate rotates, the swing rod pulls the swing rod to move back and forth. The swing rod is connected to the rack plate so that the rack plate meshes with the gear and rotates with the reverse screw. Due to the characteristics of the reverse screw, the moving plates at both ends move in opposite directions, so that the PCB board can be quickly positioned, the efficiency of thickness measurement is improved, and the accuracy of thickness measurement is enhanced.

[0024] 2. In the present invention, when the rubber plate contacts the PCB, the rear sliding post will squeeze the internal elastic member backward. Due to the reset property of the elastic member, after the sliding post squeezes the elastic member, the elastic member releases the elastic force on the sliding post, allowing the sliding post to return to its original position. The rubber plate itself also has elastic properties. Therefore, this reciprocating cycle protects the PCB from damage while effectively positioning it for the robot arm to measure the thickness of the PCB, thereby enhancing the protection of the PCB and reducing material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of the dual-axis automatic PCB thickness measurement device proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the moving plate of the dual-axis automatic PCB board thickness measurement device proposed by the utility model;

[0027] Figure 3 This is a structural diagram of the swing arm of the dual-axis automatic PCB thickness measurement device proposed by the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the rotating wheel of the dual-axis automatic PCB board thickness measurement device proposed by the utility model;

[0029] Figure 5 This is a schematic structural diagram of the elastic component of the dual-axis automatic PCB board thickness measurement device proposed in the utility model.

[0030] Legend:

[0031] 1. Cabinet body; 2. Motor; 3. Fixed plate; 4. Connecting plate; 5. Swing rod; 6. Rack plate; 7. Sliding sleeve; 8. Gear; 9. Rotating wheel; 10. Reverse screw; 11. Moving plate; 12. Fixed sleeve; 13. Sliding column; 14. Elastic part; 15. Rubber plate; 16. Protective cover; 17. Robotic arm; 18. Cabinet door; 19. Support leg. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figures 3 and 4 The utility model provides an embodiment: a dual-axis automatic PCB board thickness measuring device, including a cabinet 1, which serves as the outer shell of the entire device and plays a role in protecting the internal components and providing support. The inner wall of the cabinet 1 is fixedly connected to a drive component that drives the subsequent components. The drive component can provide a power source for the operation of the device, so that the various components can work together. The inner wall of the drive component is rotatably connected to a swing rod 5. The swing rod 5 can rotate back and forth under the drive of the drive component, thereby driving other related components to move. The outside of the swing rod 5 is fixedly connected to a rack plate 6. The rack plate 6 moves synchronously with the rotation of the swing rod 5, preparing for the subsequent meshing transmission with the gear 8. The outside of the swing rod 5 is slidably connected to a plurality of rotating wheels 9. The rotating wheels 9 can slide smoothly on the swing rod 5 to ensure the movement continuity of the related components. The two ends of the plurality of rotating wheels 9 are fixedly connected to a sliding sleeve 7. The sliding sleeve 7 can fix and limit the rotating wheels 9. The inner wall of the sliding sleeve 7 is rotatably connected to a gear 8, which realizes power transmission through meshing with the rack plate 6.

[0034] The rack plate 6 and the gear 8 are in meshing connection. This meshing connection method can accurately convert the linear motion of the rack plate 6 into the rotational motion of the gear 8. A reverse screw 10 is fixed to the inner wall of the gear 8. The reverse screw 10 rotates under the drive of the gear 8, thereby realizing special motion control of the subsequent components. The external rotation of the cabinet 1 is connected to a moving component for moving the subsequent components. The moving component can move in a specific direction outside the cabinet 1 to cooperate with the positioning operation of the PCB board. The drive assembly includes a motor 2. The motor 2 serves as the power core of the entire drive assembly, provides the initial power for the operation of the device, and can stably output torque. The driving end of the motor 2 is fixedly connected to a fixed plate 3. The fixed plate 3 rotates under the drive of the motor 2 and can transmit the power of the motor 2 to other components connected to it. The outside of the fixed plate 3 is fixedly connected to a connecting plate 4. The connecting plate 4 rotates as the fixed plate 3 rotates, further transmitting power;

[0035] The outside of the motor 2 is fixedly connected to the inner wall of the cabinet 1 to ensure the stability of the motor 2 during operation. The outside of the swing arm 5 is rotatably connected to the inner wall of the connecting plate 4, so that when the connecting plate 4 rotates, it can smoothly drive the swing arm 5 to move back and forth. During daily equipment operation and use, the motor 2 provides power to drive the fixed plate 3, which in turn drives the connecting plate 4 connected thereto to rotate. When the connecting plate 4 starts to rotate, it will generate a corresponding pulling force on the swing arm 5, causing the swing arm 5 to move back and forth. The swing arm 5 is interconnected with the rack plate 6. Driven by the reciprocating movement of the swing arm 5, the rack plate 6 will move synchronously with it. Since the rack plate 6 and the gear 8 are in a state of mutual meshing, when the rack plate 6 moves, it will drive the gear 8 to rotate.

[0036] Reference Figure 2 and Figure 5 The moving assembly includes two moving plates 11. The two moving plates 11 are important components that are in direct contact with the PCB board and perform positioning operations. They can move in opposite directions under the drive of the reverse screw rod 10. The inner walls of the two moving plates 11 are fixedly connected with multiple fixed sleeves 12. The fixed sleeves 12 are used to fix and install other related components to ensure the accuracy of their positions. The inner walls of the multiple fixed sleeves 12 are slidably connected with sliding columns 13. The sliding columns 13 can slide flexibly in the fixed sleeves 12 to adapt to different working conditions. The outside of the sliding column 13 is fixedly connected with two elastic members 14. The elastic members 14 can store elastic potential energy when squeezed by external force, and release the potential energy after the pressure disappears to push the related components to reset. The end of the sliding column 13 away from the two elastic members 14 is fixedly connected to a rubber plate 15. When the rubber plate 15 contacts the PCB board, it can not only play a role in buffering and protecting the PCB board, but also clamp the PCB board in place through its own elasticity. The outer portion of the movable plate 11 is slidably connected to the outer portion of the cabinet 1 , ensuring that the movable plate 11 can perform smooth movement operations outside the cabinet 1 .

[0037] During the specific process of positioning a PCB, when the rubber plate 15 mounted on the movable plate 11 contacts the PCB, the sliding post 13 located behind the rubber plate 15 is subjected to pressure from the PCB, causing it to push the elastic member 14 mounted within it backward. The elastic member 14 has excellent reset properties. When pressed by the sliding post 13, it stores a corresponding amount of elastic potential energy. This stored energy is then released, generating a reverse force on the sliding post 13, pushing it back to its original position. Furthermore, the rubber plate 15 itself possesses certain elastic properties, acting as a buffer when in contact with the PCB. Through the synergistic action of the elastic member 14 and the rubber plate 15, this reciprocating cycle ensures that the PCB is effectively positioned without any damage. In this way, the robotic arm 17 can perform thickness measurement on a precisely positioned PCB, ensuring the smooth and highly accurate completion of the entire thickness measurement process.

[0038] Reference Figure 1 A protective cover 16 is fixedly attached to the exterior of the cabinet 1. This effectively prevents dust and debris from entering the interior of the cabinet 1, protecting the precision components within. Two robotic arms 17 are fixedly attached to the interior wall of the cabinet 1. These arms possess high-precision motion control capabilities, enabling them to accurately measure the thickness of PCBs once they are precisely positioned, obtaining accurate thickness data.

[0039] The inner wall of the cabinet 1 is rotatably connected to a cabinet door 18, which allows operators to open or close the cabinet 1 and perform maintenance and repair operations on the internal components of the cabinet 1. The four corners of the bottom of the cabinet 1 are fixedly connected to support feet 19, which can stably support the cabinet 1 on the work surface and ensure the stability of the entire device during operation.

[0040] Reference Figure 3 and Figure 5 The ends of the two elastic members 14, away from the sliding posts 13, are fixedly connected to the inner wall of the fixed sleeve 12. This connection ensures that the elastic members 14 can stably store elastic potential energy when squeezed by the sliding posts 13, and accurately push the sliding posts 13 back to their original positions when the potential energy is released. The outer rotation of the reverse screw 10 is connected to the inner wall of the movable plate 11, so that when the reverse screw 10 rotates, it can smoothly drive the movable plate 11 to move in the opposite direction, achieving precise positioning of the PCB board.

[0041] The outer portion of the movable plate 11 contacts the inner wall of the cabinet 1, ensuring the stability and guidance of the movable plate 11 when it moves outside the cabinet 1. The outer portion of the reverse screw rod 10 is rotatably connected to the inner wall of the cabinet 1, further ensuring the stability of the reverse screw rod 10 during rotation, so that it can better play a driving role on the movable plate 11.

[0042] The exterior of the fixed plate 3 is slidably connected to the exterior of the cabinet 1. This sliding connection allows the fixed plate 3 to better adapt to the structure of the cabinet 1 during rotation, ensuring smooth power transmission. The exterior of the connecting plate 4 is slidably connected to the exterior of the cabinet 1, similarly ensuring the stability of the connecting plate 4 during rotation and the effectiveness of power transmission.

[0043] Working Principle: During normal operation and use of the device, motor 2 provides power to drive fixed plate 3, which in turn drives the connected connecting plate 4 to rotate. When connecting plate 4 begins to rotate, it exerts a corresponding pulling force on swinging rod 5, causing it to reciprocate. Swinging rod 5 is connected to rack plate 6, and the reciprocating movement of swinging rod 5 drives rack plate 6 to move synchronously. Because rack plate 6 and gear 8 are meshed, the movement of rack plate 6 drives gear 8 to rotate. Simultaneously, rotating wheels 9 are mounted within sliding sleeve 7 and move on the slide rails attached to swinging rod 5. This structural design and coordination further stabilize the meshing relationship between rack plate 6 and gear 8, effectively preventing meshing instability or disengagement during operation. Due to the unique mechanical properties of the counter-rotating screw 10, when it rotates under the drive of gear 8, it causes the movable plates 11 mounted at either end to move in opposite directions. This movement in opposite directions is extremely critical for the positioning operation of the PCB board. It can accurately position the PCB board from both sides, ensuring that the PCB board is in an accurate and stable position during the subsequent thickness measurement process.

[0044] During the specific process of positioning a PCB, when the rubber plate 15 mounted on the movable plate 11 contacts the PCB, the sliding post 13 located behind the rubber plate 15 is subjected to pressure from the PCB, causing it to push the elastic member 14 mounted within it backward. The elastic member 14 has excellent reset properties. When pressed by the sliding post 13, it stores a corresponding amount of elastic potential energy. This stored energy is then released, generating a reverse force on the sliding post 13, pushing it back to its original position. Furthermore, the rubber plate 15 itself possesses certain elastic properties, acting as a buffer when in contact with the PCB. Through the synergistic action of the elastic member 14 and the rubber plate 15, this reciprocating cycle ensures that the PCB is effectively positioned without any damage. In this way, the robotic arm 17 can perform thickness measurement on a precisely positioned PCB, ensuring the smooth and highly accurate completion of the entire thickness measurement process.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dual-axis automated PCB thickness measuring device, comprising a cabinet (1), characterized in that: The inner wall of the cabinet (1) is fixedly connected to a driving assembly for driving subsequent components, the inner wall of the driving assembly is rotatably connected to a swing rod (5), the outside of the swing rod (5) is fixedly connected to a rack plate (6), the outside of the swing rod (5) is slidably connected to a plurality of rotating wheels (9), both ends of the plurality of rotating wheels (9) are fixedly connected to sliding sleeves (7), the inner wall of the sliding sleeve (7) is rotatably connected to a gear (8), the rack plate (6) and the gear (8) are meshed, the inner wall of the gear (8) is fixed with a reverse screw rod (10), and the outside of the cabinet (1) is rotatably connected to a moving assembly for moving subsequent components.

2. The dual-axis automated PCB thickness measuring device according to claim 1, characterized in that: The drive assembly comprises a motor (2), a driving end of the motor (2) is fixedly connected to a fixed plate (3), the outside of the fixed plate (3) is fixedly connected to a connecting plate (4), the outside of the motor (2) is fixedly connected to the inner wall of the cabinet (1), and the outside of the swing arm (5) is rotatably connected to the inner wall of the connecting plate (4).

3. The dual-axis automated PCB thickness measuring device according to claim 1, characterized in that: The moving assembly comprises two moving plates (11), the inner walls of the two moving plates (11) are fixedly connected to a plurality of fixed sleeves (12), the inner walls of the plurality of fixed sleeves (12) are slidably connected to sliding columns (13), the outside of the sliding columns (13) are fixedly connected to two elastic members (14), one end of the sliding column (13) away from the two elastic members (14) is fixedly connected to a rubber plate (15), and the outside of the moving plates (11) is slidably connected to the outside of the cabinet (1).

4. The dual-axis automated PCB thickness measuring device according to claim 1, characterized in that: A protective cover (16) is fixedly connected to the outside of the cabinet (1), and two mechanical arms (17) are fixedly connected to the inner wall of the cabinet (1).

5. The dual-axis automated PCB thickness measuring device according to claim 1, characterized in that: The inner wall of the cabinet body (1) is rotatably connected to a cabinet door (18), and the four corners of the bottom of the cabinet body (1) are fixedly connected to supporting feet (19).

6. The dual-axis automated PCB thickness measuring device according to claim 3, characterized in that: One end of the two elastic members (14) away from the sliding column (13) is fixedly connected to the inner wall of the fixed sleeve (12), and the outer portion of the reverse screw rod (10) is rotatably connected to the inner wall of the movable plate (11).

7. The dual-axis automated PCB thickness measuring device according to claim 3, characterized in that: The exterior of the movable plate (11) contacts the inner wall of the cabinet (1), and the exterior of the reverse screw rod (10) is rotationally connected to the inner wall of the cabinet (1).

8. The dual-axis automated PCB thickness measuring device according to claim 2, characterized in that: The exterior of the fixing plate (3) is slidably connected to the exterior of the cabinet (1), and the exterior of the connecting plate (4) is slidably connected to the exterior of the cabinet (1).

Images