Device for measuring thickness of PCB

Abstract

The utility model relates to the technical field of PCB measurement, and discloses a device for measuring the thickness of a PCB, which comprises a base, the upper surface of the base is fixedly connected with a connecting plate, the middle part of the upper surface of the connecting plate is fixedly connected with a first fixing plate, one side of the upper surface of the first fixing plate is fixedly connected with a limiting plate, and the front end of the limiting plate is provided with a measuring scale. According to the PCB thickness measuring device, the motor is arranged to drive the lead screw to drive the infrared distance meter to conduct accurate position adjustment, so that accurate measurement of the thickness of a PCB is achieved, the infrared distance meter adopts a non-contact type measurement mode, no physical damage is caused to the PCB, and the PCB thickness measuring device is simple in structure, convenient to use and high in practicability. The use of the motor enables the measurement process to be automatic, reduces the error of manual operation, improves the measurement efficiency, enhances the overall stability of the device through the design of the reinforcing fixing plate and the inclined strut, guarantees the accuracy and reliability of measurement, enables the operation process to be simple and clear, and is easy to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB board measurement technical field especially relates to a device for measuring PCB board thickness. BACKGROUND

[0002] In the manufacturing process of PCB board, the accurate measurement of PCB board thickness is one of the key links to guarantee product quality.

[0003] Traditional PCB board thickness measurement method has many deficiencies. For example, manual measurement using caliper and other tools, this way is not only inefficient, and is easily affected by human factors, leading to large measurement error. With the development of PCB board manufacturing technology, the measurement accuracy of PCB board thickness is higher and higher, and traditional manual measurement method is difficult to meet the quality control demand in large-scale production process. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a device for measuring PCB board thickness.

[0005] The utility model adopts the following technical scheme: a device for measuring PCB board thickness, including base, the upper surface of base is connected with connecting plate, the middle part of connecting plate upper surface is connected with first fixed plate, the side of first fixed plate upper surface is connected with limiting board, the front end of limiting board is equipped with measuring scale, the top of limiting board is connected with second fixed plate.

[0006] Through the above technical scheme, each component forms a stable overall frame through fixed connection, which provides a reliable installation foundation for subsequent measurement function components, ensures the stability of the device during measurement, and helps to improve the accuracy of measurement.

[0007] As a further improvement of the above scheme, the side of the upper surface of the second fixed plate is fixedly connected with a motor, and the output end of the motor is drivingly connected with a lead screw.

[0008] Through the above technical scheme, the motor driving lead screw mode can realize accurate position control, the motor can provide stable power according to the need, so that the lead screw rotates according to the set speed and direction, and then the position of the measurement component is accurately adjusted, the measurement accuracy and repeatability are improved, and the automatic measurement is also facilitated.

[0009] As a further improvement of the above scheme, the two sides of the first fixed plate are fixedly connected with a plurality of reinforcing fixed plates, and the reinforcing fixed plates are connected with the connecting plate.

[0010] Through the technical scheme, the existence of the reinforcing plate effectively improves the structural strength of the first reinforcing plate, reduces the measurement error caused by structural deformation in the measurement process, ensures the stability of the whole device in the long-term use process, and prolongs the service life of the device.

[0011] As a further improvement of the above scheme, the outer surface of the lead screw is sleeved with a moving block, the front end of the moving block is fixedly connected with a limiting block, and the limiting block is matched with a limiting plate.

[0012] Through the technical scheme, the rotation of the lead screw is converted into the linear motion of the limiting block, and the accuracy and stability of the motion are ensured through the cooperation of the limiting plate.

[0013] As a further improvement of the above scheme, the front end of the limiting block is fixedly connected with a connecting rod, the front end of the connecting rod is fixedly connected with a fixed disc, and the inner wall of the fixed disc is fixedly connected with an infrared distance meter.

[0014] Through the technical scheme, the infrared distance meter has the advantage of non-contact measurement and will not cause any physical damage to the PCB board, and through the combination with the structure of accurately controlling the position, the thickness of the PCB board can be accurately measured, and the measurement speed is relatively fast, which can meet the production efficiency requirements.

[0015] As a further improvement of the above scheme, the two sides of the second reinforcing plate are fixedly connected with inclined struts, and the inclined struts are connected with the connecting plate.

[0016] Through the technical scheme, the setting of the inclined struts enhances the stability of the second reinforcing plate, ensures that the motor can maintain a stable operating state during operation, and further ensures the motion accuracy of the lead screw, which finally helps to improve the measurement accuracy of the whole device.

[0017] As a further improvement of the above scheme, the other side of the upper surface of the connecting plate is fixedly connected with a workbench.

[0018] Through the technical scheme, the workbench provides a stable placement platform for the PCB board, ensures that the position of the PCB board is relatively fixed during the measurement process, and is beneficial to improve the measurement accuracy.

[0019] Compared with the prior art, the beneficial effects of the utility model lie in:

[0020] This invention achieves precise measurement of PCB board thickness by using a motor-driven lead screw to precisely adjust the position of an infrared rangefinder. The infrared rangefinder employs a non-contact measurement method, preventing any physical damage to the PCB board. The use of a motor automates the measurement process, reducing errors from manual operation and improving measurement efficiency. The reinforced design of the fixing plate and diagonal brace enhances the overall stability of the device, ensuring measurement accuracy and reliability. The device's design makes operation simple, clear, and easy to use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a side view of the structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the rear structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the measuring ruler structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the infrared rangefinder of this utility model.

[0026] Explanation of key symbols:

[0027] 1. Base; 2. Connecting plate; 3. First fixing plate; 4. Limiting plate; 5. Measuring ruler; 6. Second fixing plate; 7. Motor; 8. Lead screw; 9. Reinforcing fixing plate; 10. Moving block; 11. Limiting block; 12. Connecting rod; 13. Fixing plate; 14. Infrared rangefinder; 15. Diagonal brace; 16. Worktable. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] Example:

[0030] Please combine Figures 1-5This embodiment of a device for measuring the thickness of a PCB board includes a base 1, a connecting plate 2 fixedly connected to the upper surface of the base 1, a first fixing plate 3 fixedly connected to the middle of the upper surface of the connecting plate 2, a limiting plate 4 fixedly connected to one side of the upper surface of the first fixing plate 3, a measuring ruler 5 opened at the front end of the limiting plate 4, and a second fixing plate 6 fixedly connected to the top of the limiting plate 4. The base 1 provides a stable support foundation for the entire device. The connecting plate 2 is fixed on the base 1 and serves as a connection platform for other components. The first fixing plate 3 is located in the middle of the upper surface of the connecting plate 2, the limiting plate 4 is fixed to one side of the upper surface of the first fixing plate 3, and the measuring ruler 5 is opened at the front end of the limiting plate 4. It can be used to intuitively read some measurement-related data or as a reference benchmark for other measurements. The second fixing plate 6 is fixed to the top of the limiting plate 4. The whole device forms a basic frame structure, providing a foundation for the installation of subsequent components.

[0031] A motor 7 is fixedly connected to one side of the upper surface of the second fixed plate 6. The output end of the motor 7 is connected to a lead screw 8. The motor 7 is installed on one side of the upper surface of the second fixed plate 6. When the motor 7 starts, it can drive the lead screw 8 to rotate. The rotation of the lead screw 8 will be converted into the linear motion of the subsequent components, thereby realizing the position adjustment of the components related to PCB board thickness measurement for measurement operation.

[0032] Several reinforcing plates 9 are fixedly connected to both sides of the first fixed plate 3. The reinforcing plates 9 are connected to the connecting plate 2. Several reinforcing plates 9 are fixedly connected to both sides of the first fixed plate 3. These reinforcing plates 9 are also connected to the connecting plate 2. During the operation of the device, when an external force is applied to the first fixed plate 3, the reinforcing plates 9 can distribute these forces to the connecting plate 2, thereby enhancing the structural stability of the first fixed plate 3.

[0033] A movable block 10 is sleeved on the outer surface of the lead screw 8. A limit block 11 is fixedly connected to the front end of the movable block 10. The limit block 11 is adapted to the limit plate 4. When the lead screw 8 rotates, according to the screw drive principle, the movable block 10 will move linearly along the axis of the lead screw 8. The limit block 11 at the front end of the movable block 10 is adapted to the limit plate 4. The limit plate 4 guides and restricts the movement of the limit block 11, ensuring that the limit block 11 can only move in a specific direction.

[0034] A connecting rod 12 is fixedly connected to the front end of the limiting block 11, and a fixed plate 13 is fixedly connected to the front end of the connecting rod 12. An infrared rangefinder 14 is fixedly connected to the inner wall of the fixed plate 13. The front end of the limiting block 11 is fixedly connected to the fixed plate 13 through the connecting rod 12. The infrared rangefinder 14 is fixed to the inner wall of the fixed plate 13. When the limiting block 11 moves to a suitable position under the action of the lead screw 8 and the limiting plate 4, the infrared rangefinder 14 can measure the thickness of the PCB board placed on the workbench. The infrared rangefinder 14 measures the distance by emitting and receiving infrared rays. Its measurement principle is based on the principle of infrared ray reflection time or phase change, thereby obtaining the thickness information of the PCB board.

[0035] Both sides of the second fixed plate 6 are fixedly connected with diagonal braces 15, which are connected to the connecting plate 2. The diagonal braces 15 are fixedly connected to both sides of the second fixed plate 6 and are connected to the connecting plate 2. The diagonal braces 15 play a role in supporting and reinforcing the second fixed plate 6 in terms of structure. When the motor 7 is working or the device is disturbed by external interference, the diagonal braces 15 can bear part of the force and transfer the force to the connecting plate 2, thereby maintaining the stability of the second fixed plate 6.

[0036] A worktable 16 is fixedly connected to the other side of the upper surface of the connecting plate 2. The PCB board is placed on the worktable 16, and then the thickness of the PCB board is measured by other components of the device.

[0037] The implementation principle of a device for measuring PCB board thickness in this embodiment is as follows: Base 1 provides a stable support foundation for the entire device. Connecting plate 2 is fixed to base 1, serving as a connection platform for other components. First fixing plate 3 is located in the middle of the upper surface of connecting plate 2. Limiting plate 4 is fixed to one side of the upper surface of first fixing plate 3. Measuring ruler 5 is located at the front end of limiting plate 4, allowing for intuitive reading of measurement-related data or serving as a reference for other measurements. Second fixing plate 6 is fixed to the top of limiting plate 4. This overall structure forms the basic framework of the device, providing a foundation for the installation of subsequent components. Motor 7 is installed on one side of the upper surface of second fixing plate 6. The output end of motor 7 is connected to lead screw 8. When motor 7 starts, it drives lead screw 8 to rotate. The rotation of lead screw 8 is converted into linear motion of subsequent components. The outer surface of lead screw 8 moves in a sleeve. When the lead screw 8 rotates, according to the screw's helical transmission principle, the moving block 10 will move linearly along the axis of the lead screw 8. The limiting block 11 at the front end of the moving block 10 is adapted to the limiting plate 4. The limiting plate 4 guides and restricts the movement of the limiting block 11, ensuring that the limiting block 11 can only move in a specific direction. The front end of the limiting block 11 is fixedly connected to the connecting rod 12, and the front end of the connecting rod 12 is fixedly connected to the fixed plate 13. The inner wall of the fixed plate 13 is fixedly connected to the infrared rangefinder 14. When the limiting block 11 moves to the appropriate position under the action of the lead screw 8 and the limiting plate 4, the infrared rangefinder 14 can measure the thickness of the PCB board placed on the workbench. The infrared rangefinder 14 measures the distance by emitting and receiving infrared rays. Its measurement principle is based on the principle of infrared reflection time or phase change, thereby obtaining the thickness information of the PCB board.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A device for measuring the thickness of a PCB board, characterized in that, Includes a base (1), a connecting plate (2) is fixedly connected to the upper surface of the base (1), a first fixing plate (3) is fixedly connected to the middle of the upper surface of the connecting plate (2), a limiting plate (4) is fixedly connected to one side of the upper surface of the first fixing plate (3), a measuring ruler (5) is provided at the front end of the limiting plate (4), and a second fixing plate (6) is fixedly connected to the top of the limiting plate (4).

2. The device for measuring the thickness of a PCB board as described in claim 1, characterized in that: A motor (7) is fixedly connected to one side of the upper surface of the second fixing plate (6), and a lead screw (8) is connected to the output end of the motor (7).

3. The device for measuring the thickness of a PCB board as described in claim 1, characterized in that: Several reinforcing fixing plates (9) are fixedly connected to both sides of the first fixing plate (3), and the reinforcing fixing plates (9) are connected to the connecting plate (2).

4. The device for measuring the thickness of a PCB board as described in claim 2, characterized in that: The outer surface of the lead screw (8) is fitted with a moving block (10), and the front end of the moving block (10) is fixedly connected to a limiting block (11), which is adapted to the limiting plate (4).

5. The device for measuring the thickness of a PCB board as described in claim 4, characterized in that: The front end of the limiting block (11) is fixedly connected to a connecting rod (12), the front end of the connecting rod (12) is fixedly connected to a fixed disk (13), and the inner wall of the fixed disk (13) is fixedly connected to an infrared rangefinder (14).

6. The device for measuring the thickness of a PCB board as described in claim 2, characterized in that: Both sides of the second fixing plate (6) are fixedly connected with diagonal braces (15), and the diagonal braces (15) are connected to the connecting plate (2).

7. The device for measuring the thickness of a PCB board as described in claim 1, characterized in that: A workbench (16) is fixedly connected to the other side of the upper surface of the connecting plate (2).

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