Positioning device for laser processing of PCB (Printed Circuit Board)

Abstract

The utility model relates to the technical field of PCB laser processing, in particular to a PCB laser processing positioning device which comprises a bottom plate and a PCB, a horizontal table is arranged above the bottom plate, the left end of the horizontal table is fixedly connected with two fixing plates distributed front and back, a rotating shaft is rotatably connected between the two fixing plates, the outer wall of the rotating shaft is fixedly connected with a connecting strip, and the connecting strip is fixedly connected with the PCB. The upper end of the connecting strip is fixedly connected with a hard plate attached to the upper end of the horizontal table. The extrusion disc enters the circular hole and applies downward pressure to the pressed block and the hard board through resilience force of the extension spring, so that the hard board and the positioning frame are always attached to the upper end of the horizontal table, then the PCB is placed in the positioning frame, the PCB is attached to the upper end face of the horizontal table and the periphery of the inner wall of the positioning frame, and then the PCB is placed in the positioning frame and is attached to the upper end face of the horizontal table and the periphery of the inner wall of the positioning frame. By means of the mode, when the PCB is positioned, the PCB is prevented from generating cracks, deformation and other defects, and the effect of being easy and convenient to use is achieved.

Description

Technical Field

[0001] This utility model relates to the field of PCB board laser processing technology, specifically a PCB board laser processing positioning device. Background Technology

[0002] A PCB, or Printed Circuit Board, is an indispensable core component of modern electronic devices. It forms an electrical network connecting electronic components and serves as a mechanical support for these components by laying and patterning conductive copper foil on the surface of an insulating substrate (usually composed of fiberglass or epoxy resin). Copper-clad laminate is a basic material for PCBs, typically a composite material composed of an insulating substrate (such as fiberglass cloth or paper) and copper foil. During PCB manufacturing, a laser beam is used to precisely etch the surface of the PCB to form the desired circuit patterns or markings. During etching, a positioning device is needed to keep the PCB in place to ensure the precision and consistency of the laser processing.

[0003] In existing technologies, when positioning PCB boards, pressure is often applied to the four sides of the PCB board using clamps to fix it in place. However, if the clamps are not installed or adjusted correctly, this pressure may cause defects such as cracks or deformation in the PCB board. Furthermore, positioning the PCB board using clamps increases the complexity of the operation. Therefore, it is necessary to propose a PCB board laser processing positioning device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a PCB board laser processing positioning device, which has the characteristics of preventing PCB boards from developing defects such as cracks and deformation when positioning them, and is simple and convenient to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PCB board laser processing positioning device, comprising a base plate and a PCB board, a platform is provided above the base plate, two fixed plates are fixedly connected to the left end of the platform, a rotating shaft is rotatably connected between the two fixed plates, a connecting strip is fixedly connected to the outer wall of the rotating shaft, a rigid plate is fixedly connected to the upper end of the connecting strip and fits against the upper end of the platform, a positioning frame is fixedly connected through and fits against the upper surface of the platform at the upper end of the rigid plate, and the PCB board fits against the upper surface of the platform and the inner wall of the positioning frame around the perimeter;

[0006] A support plate is fixedly connected to the right end of the water platform. A turntable is rotatably connected to the upper end of the support plate. A connecting rod is fixedly connected to the upper end of the turntable. A steering plate is fixedly connected to the upper end of the connecting rod. A sliding rod is slidably connected through the upper end of the steering plate. A pull plate is fixedly connected to the upper end of the sliding rod. A tension spring is fixedly connected between the pull plate and the steering plate. A pressure block is fixedly connected to the upper end of the rigid plate. A circular hole is opened at the upper end of the pressure block. A pressing disc extending into the circular hole is fixedly connected to the lower end of the sliding rod.

[0007] To facilitate the placement of the PCB board into the positioning frame, the upper edge of the inner wall of the positioning frame is preferably rounded, which is a preferred embodiment of the laser processing positioning device for PCB boards according to this utility model.

[0008] In order to limit the tension spring, prevent it from being excessively deformed, and prevent the tension spring from being twisted, in a preferred embodiment of the PCB board laser processing positioning device of this utility model, the tension spring is sleeved on the outer wall of the slide rod, the outer wall of the connecting rod is provided with a limiting groove, and the outer wall of the extrusion plate is fixedly connected with a limiting rod extending into the limiting groove.

[0009] To improve the stability of the turntable rotation, as a preferred embodiment of the PCB board laser processing positioning device of this utility model, the upper end of the support plate is provided with an annular groove, and an annular slider fixedly connected to the lower end of the turntable is slidably connected inside the annular groove.

[0010] To improve the stability of the rotating shaft, in a preferred embodiment of the PCB laser processing positioning device of this utility model, an annular groove is provided on one side of each of the two fixed plates, and an annular slider is slidably connected inside each of the two annular grooves and is fixedly connected to the front and rear ends of the rotating shaft respectively.

[0011] To facilitate the connection and fixation of the base plate to the water platform, a fixed platform is preferably fixedly connected between the base plate and the water platform in this utility model laser processing positioning device.

[0012] To facilitate the installation of the device on a horizontal desktop or platform using fasteners and to prevent the device from moving, as is preferred in this PCB board laser processing positioning device, mounting plates are fixedly connected to both the left and right ends of the base plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In use, lift the extrusion plate upwards and position it above the pressure block, then stretch the tension spring. Next, rotate the pull plate, slide rod, extrusion plate, steering plate, and connecting rod around the turntable until the extrusion plate is directly above the circular hole. Then, release the pulling force on the pull plate; the extrusion plate will enter the circular hole and, through the rebound force of the tension spring, apply downward pressure to the pressure block and rigid plate. This ensures that the rigid plate and positioning frame remain in contact with the upper end of the platform. Then, place the PCB board inside the positioning frame, ensuring it is in contact with the upper surface of the platform and the surrounding walls of the positioning frame. This method allows for precise positioning of the PCB board. After the PCB board is processed, the extrusion plate is disengaged from the inside of the round hole. Then, the pull plate, slide rod, extrusion plate, and steering plate rotate about 180 degrees around the turntable. Next, the rigid plate, positioning frame, and connecting strip rotate counterclockwise around the axis to a certain position, facilitating the PCB board inside the positioning frame to fall onto the upper end of the platform. The PCB board can then be removed. This method effectively prevents defects such as cracks and deformation of the PCB board during positioning, and is simple and convenient to use. Attached Figure Description

[0015] Figure 1 This is a front sectional view of the present invention.

[0016] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a diagram of the external connection structure of the water platform of this utility model;

[0018] Figure 4 This is a partial left-side cross-sectional view of the present invention;

[0019] Figure 5 This is a partial top sectional view of the present invention.

[0020] In the diagram: 1. Base plate; 2. Fixed platform; 3. Water platform; 4. Rigid plate; 5. Positioning frame; 6. PCB board; 7. Fixed plate; 8. Rotating shaft; 9. Connecting strip; 10. Support plate; 11. Turntable; 12. Connecting rod; 13. Steering plate; 14. Slide rod; 15. Pull plate; 16. Tension spring; 17. Round hole; 18. Extrusion plate; 19. Limiting rod; 20. Pressure block; 21. Limiting groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] Please see Figures 1 to 5 A PCB board laser processing positioning device includes a base plate 1 and a PCB board 6. A platform 3 is provided above the base plate 1. Two fixed plates 7 are fixedly connected to the left end of the platform 3. A rotating shaft 8 is rotatably connected between the two fixed plates 7. A connecting strip 9 is fixedly connected to the outer wall of the rotating shaft 8. A rigid plate 4 that fits against the upper end of the platform 3 is fixedly connected to the upper end of the connecting strip 9. A positioning frame 5 that fits against the upper surface of the platform 3 is passed through and fixedly connected to the upper end of the rigid plate 4. The PCB board 6 fits against the upper surface of the platform 3 and the inner wall of the positioning frame 5.

[0024] A support plate 10 is fixedly connected to the right end of the water platform 3. A turntable 11 is rotatably connected to the upper end of the support plate 10. A connecting rod 12 is fixedly connected to the upper end of the turntable 11. A steering plate 13 is fixedly connected to the upper end of the connecting rod 12. A sliding rod 14 is slidably connected through the upper end of the steering plate 13. A pull plate 15 is fixedly connected to the upper end of the sliding rod 14. A tension spring 16 is fixedly connected between the pull plate 15 and the steering plate 13. A pressure block 20 is fixedly connected to the upper end of the rigid plate 4. A round hole 17 is opened at the upper end of the pressure block 20. A pressing plate 18 extending into the round hole 17 is fixedly connected to the lower end of the sliding rod 14.

[0025] In this embodiment: During use, the sliding rod 14 and the extrusion plate 18 are lifted upwards by the pull plate 15 until the extrusion plate 18 is positioned above the pressure block 20. At this point, the tension spring 16 is stretched, causing the pull plate 15, sliding rod 14, extrusion plate 18, steering plate 13, and connecting rod 12 to rotate around the turntable 11. This allows the extrusion plate 18 to rotate to a position directly above the circular hole 17. Subsequently, the lifting force on the pull plate 15 is released, and due to the rebound force of the tension spring 16, the pull plate 15, sliding rod 14, and extrusion plate 18 move downwards, allowing the extrusion plate 18 to enter the circular hole 17. The internal pressure is applied to the pressure block 20 by the rebound force of the tension spring 16, and a certain pressure is applied to the right side of the rigid plate 4. This ensures that the rigid plate 4 and the positioning frame 5 are always in contact with the upper end of the platform 3. Then, the PCB board 6 is placed inside the positioning frame 5 and is made to fit with the upper end of the platform 3 and the inner wall of the positioning frame 5. This allows for precise positioning of the PCB board 6. After positioning, the surface of the PCB board 6 can be etched. During this process, the position of the extrusion plate 18 can be restricted through the round hole 17.

[0026] After processing is completed, lift the pull plate 15 upwards, so that the extrusion plate 18 can be disengaged from the inside of the round hole 17. Then, rotate the pull plate 15, slide rod 14, extrusion plate 18 and turning plate 13 about 180 degrees around the turntable 11. Then, manually rotate the rigid plate 4, positioning frame 5 and connecting strip 9 counterclockwise around the rotating shaft 8 to a certain position, so that the PCB board 6 inside the positioning frame 5 can fall to the upper end of the horizontal platform 3. Then, remove the PCB board 6. In this way, when positioning the PCB board 6, it is possible to prevent the PCB board 6 from developing defects such as cracks and deformation, and it is simple and convenient to use.

[0027] As a technical optimization of this utility model, the upper edge of the inner wall of the positioning frame 5 is rounded.

[0028] In this embodiment, the rounded corners make it easier to place the PCB board 6 into the positioning frame 5.

[0029] As a technical optimization of this utility model, the tension spring 16 is sleeved on the outer wall of the slide bar 14, the outer wall of the connecting rod 12 is provided with a limiting groove 21, and the outer wall of the extrusion plate 18 is fixedly connected with a limiting rod 19 extending into the limiting groove 21.

[0030] In this embodiment: Since the tension spring 16 is sleeved on the outer wall of the slide bar 14, the tension spring 16 is limited to prevent it from being excessively deformed. By setting the limiting groove 21 and the limiting rod 19, the extrusion plate 18 is prevented from twisting, thereby preventing the tension spring 16 from twisting.

[0031] As a technical optimization of this utility model, the upper end of the support plate 10 is provided with an annular groove, and an annular slider fixedly connected to the lower end of the turntable 11 is slidably connected inside the annular groove.

[0032] In this embodiment, the stability of the turntable 11 rotation is improved by setting an annular slider and an annular groove.

[0033] As a technical optimization of this utility model, annular grooves are provided on the opposite sides of the two fixed plates 7, and annular sliders that are fixedly connected to the front and rear ends of the rotating shaft 8 are slidably connected inside the two annular grooves.

[0034] In this embodiment, two annular sliders and two annular grooves are provided to improve the stability of the rotation of the rotating shaft 8.

[0035] As a technical optimization of this utility model, a fixed platform 2 is fixedly connected between the base plate 1 and the water platform 3.

[0036] In this embodiment: a fixed platform 2 is provided to facilitate the connection and fixation of the base plate 1 and the water platform 3.

[0037] As a technical optimization of this utility model, mounting plates are fixedly connected to both the left and right ends of the base plate 1.

[0038] In this embodiment, two mounting plates are provided to allow the device to be mounted on a horizontal desktop or platform using fasteners, preventing the device from moving.

[0039] Working principle: In use, firstly, the sliding rod 14 and the extrusion plate 18 are lifted upwards by the pull plate 15 until the extrusion plate 18 is positioned above the pressure block 20. At this point, the tension spring 16 is stretched, causing the pull plate 15, sliding rod 14, extrusion plate 18, steering plate 13, and connecting rod 12 to rotate around the turntable 11. This rotates the extrusion plate 18 to a position directly above the circular hole 17. Then, the lifting force on the pull plate 15 is released, and due to the rebound force of the tension spring 16, the pull plate 15, sliding rod 14, and extrusion plate 18 move downwards, allowing the extrusion plate 18 to enter the circular hole 17. The internal pressure of the rigid plate 4 is applied downward to the pressure block 20 by the rebound force of the tension spring 16, and a certain pressure is applied to the right side of the rigid plate 4. This ensures that the rigid plate 4 and the positioning frame 5 are always in contact with the upper end of the platform 3. Then, the PCB board 6 is placed inside the positioning frame 5 and is made to fit with the upper end of the platform 3 and the inner wall of the positioning frame 5. This allows for precise positioning of the PCB board 6. After positioning, the surface of the PCB board 6 can be etched. During this process, the position of the extrusion plate 18 can be restricted through the circular hole 17.

[0040] After processing is completed, lift the pull plate 15 upwards, so that the extrusion plate 18 can be disengaged from the inside of the round hole 17. Then, rotate the pull plate 15, slide rod 14, extrusion plate 18 and turning plate 13 about 180 degrees around the turntable 11. Then, manually rotate the rigid plate 4, positioning frame 5 and connecting strip 9 counterclockwise around the rotating shaft 8 to a certain position, so that the PCB board 6 inside the positioning frame 5 can fall to the upper end of the horizontal platform 3. Then, remove the PCB board 6. In this way, when positioning the PCB board 6, it is possible to prevent the PCB board 6 from developing defects such as cracks and deformation, and it is simple and convenient to use.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PCB laser processing positioning device comprising a base plate (1) and a PCB plate (6), characterized in that: The upper side of the bottom plate (1) is provided with a water platform (3), the left end of the water platform (3) is fixedly connected with two front and rear distributed fixed plates (7), the two fixed plates (7) are rotatably connected with a rotating shaft (8), the outer wall of the rotating shaft (8) is fixedly connected with a connecting strip (9), the upper end of the connecting strip (9) is fixedly connected with a hard plate (4) which is attached to the upper end of the water platform (3), the upper end of the hard plate (4) penetrates and is fixedly connected with a positioning frame (5) which is attached to the upper end surface of the water platform (3), the PCB board (6) is attached to the upper end surface of the water platform (3) and the periphery of the inner wall of the positioning frame (5). The right end of the water platform (3) is fixedly connected with a supporting plate (10), the upper end of the supporting plate (10) is rotatably connected with a rotating disc (11), the upper end of the rotating disc (11) is fixedly connected with a connecting rod (12), the upper end of the connecting rod (12) is fixedly connected with a turning plate (13), the upper end of the turning plate (13) penetrates and is slidingly connected with a sliding rod (14), the upper end of the sliding rod (14) is fixedly connected with a pull plate (15), the pull plate (15) and the turning plate (13) are fixedly connected with a tension spring (16), the upper end of the hard plate (4) is fixedly connected with a pressure receiving block (20), the upper end of the pressure receiving block (20) is provided with a circular hole (17), the lower end of the sliding rod (14) is fixedly connected with a pressing disc (18) which extends into the circular hole (17).

2. The positioning device for laser processing of PCBs according to claim 1, characterized in that: The upper edge of the inner wall of the positioning frame (5) is provided with a round corner.

3. The positioning device for laser processing of PCBs according to claim 1, characterized in that: The tension spring (16) is sleeved on the outer wall of the sliding rod (14), the outer wall of the connecting rod (12) is provided with a limiting groove (21), and the outer wall of the pressing disc (18) is fixedly connected with a limiting rod (19) which extends into the limiting groove (21).

4. The positioning device for laser processing of PCBs according to claim 1, characterized in that: The upper end of the supporting plate (10) is provided with an annular sliding groove, and the annular sliding groove is slidingly connected with an annular sliding block which is fixedly connected to the lower end of the rotating disc (11).

5. The positioning device for laser processing of PCBs according to claim 1, characterized in that: The opposite sides of the two fixed plates (7) are both provided with annular sliding grooves, and the inner sides of the two annular sliding grooves are both slidingly connected with annular sliding blocks which are respectively fixedly connected to the front and rear ends of the rotating shaft (8).

6. The positioning device for laser processing of a PCB according to claim 1, wherein: The bottom plate (1) and the water platform (3) are fixedly connected with a fixed table (2).

7. The positioning device for laser processing of a PCB according to claim 1, wherein: The left and right ends of the bottom plate (1) are both fixedly connected with mounting plates.

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