A swing structure for a PCB polishing apparatus

Abstract

The utility model discloses a kind of swing structure for PCB grinding equipment, including grinding wheel, left mounting seat and right mounting seat, left mounting seat is U-shaped, one end of grinding wheel is arranged on the two side arms of left mounting seat, and bearing is provided at the connecting place of grinding wheel and left mounting seat, the end of grinding wheel from left mounting seat is provided with V pulley, the bottom of left mounting seat is slidably connected on swing device seat plate by slide rail and sliding block, swing control mechanism for controlling the axial swing of grinding wheel is provided on swing device seat plate.The utility model moves by controlling grinding wheel along axial direction, realizes to the axial grinding of PCB board, avoids the problem that single direction grinding effect is not good.The utility model has few assembly parts, compact structure, and is convenient for production and installation.

Description

Technical Field

[0001] This utility model relates to PCB processing equipment, and in particular to a swing structure for PCB grinding equipment. Background Technology

[0002] In the PCB manufacturing process, after the initial cutting and shaping of the circuit board, holes need to be drilled to locate the positions for electronic components, and then soldered to ensure proper conductivity. After drilling and trimming, the PCB board will have raised burrs, sharp edges, and pointed corners, commonly known as burrs. Burrs can negatively impact subsequent PCB manufacturing processes, such as causing poor conductivity, short circuits, and even burnouts. Therefore, the burrs on the circuit board must be ground off before proceeding to the next step.

[0003] Currently, traditional PCB grinding equipment uses transmission rollers to grind the circuit board. These transmission rollers include grinding wheels and parallel wheels for grinding the circuit board. They can only grind in the conveying direction of the PCB board and cannot grind the circuit board along the axial direction of the grinding wheel, resulting in uneven grinding of the PCB board surface and affecting the appearance quality and grinding quality of the circuit board. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a swing structure for PCB grinding equipment.

[0005] The objective of this invention is achieved through the following technical solution: a swing structure for a PCB grinding equipment, comprising a grinding wheel, a left mounting base, and a right mounting base. The left mounting base is U-shaped. One end of the grinding wheel passes through the two side arms of the left mounting base, and a bearing is provided at the connection between the grinding wheel and the left mounting base. A V-belt pulley is provided at the end of the grinding wheel extending from the left mounting base. The bottom of the left mounting base is slidably connected to the swing device base plate via a slide rail and a slider. The swing device base plate is provided with a swing control mechanism for controlling the grinding wheel to swing axially. This invention achieves the reciprocating movement of the grinding wheel along a straight line by a swing sliding mechanism that cooperates with the swing eccentric shaft, the swing arm, and the linear slider. The swing device base plate fixes the swing eccentric shaft and the linear slider. The linear slider has a grinding wheel bearing seat and its components. The swing eccentric shaft, the swing arm, and the connecting base are all connected by bearings. The power of the swing shaft is transmitted by a small motor through two synchronous pulleys of different sizes.

[0006] As an improvement of the swing structure used in the PCB grinding equipment of this utility model, the swing control mechanism includes a swing eccentric shaft. Eccentric shaft mounting seats are provided on both sides of the swing device base plate. The swing eccentric shaft passes through the two eccentric shaft mounting seats and an eccentric shaft bearing is provided at the connection between the swing eccentric shaft and the eccentric shaft mounting seat.

[0007] As an improvement to the swing structure used in the PCB grinding equipment of this utility model, the swing control mechanism further includes a swing arm. One end of the swing arm is provided with a left swing arm bearing and a right swing arm bearing. A connecting shaft passes through the left swing arm bearing, and one end of the connecting shaft is mounted on a connecting plate. The connecting plate is connected to one side of the left mounting base. The right swing arm bearing is connected to one end of the swing eccentric shaft. The other end of the swing eccentric shaft is provided with a first synchronous pulley and a swing shaft spacer. The swing shaft spacer is located between the first synchronous pulley and the eccentric shaft mounting base. The diameter of the first synchronous pulley is larger than the diameter of the second synchronous pulley. The two synchronous pulleys, one large and one small, can play a role in speed reduction transmission.

[0008] As an improvement to the swing structure used in the PCB grinding equipment of this utility model, the swing control mechanism further includes a swing motor base plate, which is installed on one side of the swing device base plate. A swing motor is fixedly installed on the swing motor base plate, and a second synchronous pulley is provided on the output shaft of the swing motor. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt.

[0009] As an improvement to the swing structure used in the PCB grinding equipment of this utility model, the swing motor drives the rotation of the swing eccentric shaft through a synchronous belt and a synchronous pulley. The rotation of the swing eccentric shaft can drive the swing arm to swing, and the swing of the swing arm can drive the grinding wheel to swing along the axial direction.

[0010] As an improvement of the swing structure used in the PCB grinding equipment of this utility model, the grinding wheel is mounted on a shaft between the two side arms of the left mounting base with a sensing plate. A sensor is provided on one side arm of the left mounting base. The sensor and the sensing plate generate a sensing signal to measure the rotation speed of the grinding wheel.

[0011] As an improvement to the swing structure used in the PCB grinding equipment of this utility model, the right mounting base is L-shaped, and a linear slider is provided at the bottom of the right mounting base, which is connected to a linear slide rail.

[0012] The advantages of this invention are as follows: By controlling the grinding wheel to move back and forth along the axial direction, this invention achieves axial grinding of the PCB board, avoiding the problem of poor grinding effect in a single direction. This invention has fewer assembly parts, a compact structure, and is easy to manufacture and install. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention;

[0014] Figure 2 This is an exploded view of the present invention;

[0015] Figure 3 This is the front view of this utility model;

[0016] The attached figures are labeled as follows: 1. Grinding wheel; 2. Left mounting base; 3. Right mounting base; 4. V-belt pulley; 5. Slider; 6. Rocking device base plate; 7. Rocking eccentric shaft; 8. Eccentric shaft mounting base; 9. Eccentric shaft bearing; 10. Rocking arm; 11. Left rocking arm bearing; 12. Right rocking arm bearing; 13. Connecting plate; 14. First synchronous belt pulley; 15. Rocking shaft spacer; 16. Rocking motor base plate; 17. Rocking motor; 18. Second synchronous belt pulley; 19. Synchronous belt; 20. Induction plate; 21. Side arm; 22. Sensor; 23. Linear slider; 24. Slide rail; 25. Rocking control mechanism. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0019] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0020] like Figures 1-3As shown, a swing structure for a PCB grinding equipment includes a grinding wheel 1, a left mounting base 2, and a right mounting base 3. The left mounting base 2 is U-shaped, but other shapes can also be used. One end of the grinding wheel 1 passes through the two side arms 21 of the left mounting base 2, and a bearing is provided at the connection between the grinding wheel 1 and the left mounting base 2. A V-belt pulley 4 is provided at the end of the grinding wheel 2 that extends out of the left mounting base 2. The V-belt pulley 4 is used to connect to the drive that drives the grinding wheel 1 to rotate. The bottom of the left mounting base 2 is slidably connected to the swing device base plate 6 through a slide rail 24 and a slider 5. The swing device base plate 6 is provided with a swing control mechanism 25 that controls the grinding wheel 1 to swing along the axial direction. This utility model uses a swing sliding mechanism consisting of a swing eccentric shaft 7, a swing arm 10, and a linear slider to enable the grinding wheel 1 to move back and forth along a straight line. The swing device base plate 6 fixes the swing eccentric shaft 7 and the linear slider. The linear slider has a grinding wheel bearing seat and its components. The swing eccentric shaft 7, the swing arm 10, and the connecting seat are all connected by bearings. The power of the swing eccentric shaft 7 is transmitted by a small motor through two synchronous pulleys of different sizes.

[0021] Preferably, the rocking control mechanism 25 includes a rocking eccentric shaft 7, and eccentric shaft mounting seats 8 are respectively provided on both sides of the rocking device base plate 6. The rocking eccentric shaft 7 passes through the two eccentric shaft mounting seats 8, and an eccentric shaft bearing 9 is provided at the connection between the rocking eccentric shaft 7 and the eccentric shaft mounting seats 8.

[0022] Preferably, the swing control mechanism 25 further includes a swing arm 10. One end of the swing arm 10 is provided with a left swing arm bearing 11 and a right swing arm bearing 12. A connecting shaft passes through the left swing arm bearing 11, and one end of the connecting shaft is mounted on a connecting plate 13. The connecting plate 13 is connected to one side of the left mounting seat 2. The right swing arm bearing 12 is connected to one end of the swing eccentric shaft 7. The other end of the swing eccentric shaft 7 is provided with a first synchronous pulley 14 and a swing shaft spacer 15. The swing shaft spacer 15 is located between the first synchronous pulley 14 and the eccentric shaft mounting seat 8. The diameter of the first synchronous pulley 14 is larger than the diameter of the second synchronous pulley 18. The two synchronous pulleys, one large and one small, can play a role in speed reduction transmission.

[0023] Preferably, the swing control mechanism 25 further includes a swing motor base plate 16, which is installed on one side of the swing device base plate 6. A swing motor 17 is fixedly installed on the swing motor base plate 16. A second synchronous pulley 18 is provided on the output shaft of the swing motor 17. The first synchronous pulley 14 and the second synchronous pulley 18 are connected by a synchronous belt 19.

[0024] Preferably, the swing motor 17 drives the rotation of the swing eccentric shaft 7 through a synchronous belt and a synchronous pulley. The rotation of the swing eccentric shaft 7 can drive the swing arm 10 to swing, and the swing of the swing arm 10 can drive the grinding wheel 1 to swing along the axial direction.

[0025] Preferably, a sensor 20 is mounted on the shaft between the two side arms of the left mounting base 2 on the grinding wheel 1, and a sensor 22 is provided on one side arm 21 of the left mounting base 2. The sensor 22 and the sensor 20 generate a sensing signal that can measure the rotational speed of the grinding wheel 1.

[0026] Preferably, the right mounting base 3 is L-shaped, and the bottom of the right mounting base 3 is provided with a linear slider 23, which is connected to a linear slide rail.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and structure of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A swing structure for a PCB grinding equipment, characterized in that, It includes a grinding wheel, a left mounting base, and a right mounting base. The left mounting base is U-shaped. One end of the grinding wheel passes through the two side arms of the left mounting base, and a bearing is provided at the connection between the grinding wheel and the left mounting base. A V-belt pulley is provided at the end of the grinding wheel that extends out of the left mounting base. The bottom of the left mounting base is slidably connected to the rocking device base plate through a slide rail and a slider. The rocking device base plate is provided with a rocking control mechanism to control the grinding wheel to swing along the axial direction. The swing control mechanism includes a swing eccentric shaft. Eccentric shaft mounting seats are provided on both sides of the swing device base plate. The swing eccentric shaft passes through the two eccentric shaft mounting seats and an eccentric shaft bearing is provided at the connection between the swing eccentric shaft and the eccentric shaft mounting seats. The swing control mechanism also includes a swing arm, one end of which is provided with a left swing arm bearing and a right swing arm bearing. A connecting shaft passes through the left swing arm bearing, one end of which is mounted on a connecting plate. The connecting plate is connected to one side of the left mounting base. The right swing arm bearing is connected to one end of the swing eccentric shaft. The other end of the swing eccentric shaft is provided with a first synchronous pulley and a swing shaft spacer. The swing shaft spacer is located between the first synchronous pulley and the eccentric shaft mounting base. The grinding wheel is mounted on a shaft between the two side arms of the left mounting base, and a sensor is provided on one side arm of the left mounting base. The sensor and the sensor generate a sensing signal that can measure the rotational speed of the grinding wheel.

2. The oscillating structure for PCB grinding equipment according to claim 1, characterized in that, The swing control mechanism also includes a swing motor base plate, which is installed on one side of the swing device base plate. A swing motor is fixedly installed on the swing motor base plate, and a second synchronous pulley is provided on the output shaft of the swing motor. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt.

3. The oscillating structure for PCB grinding equipment according to claim 2, characterized in that, The swing motor drives the rotation of the swing eccentric shaft via a synchronous belt and synchronous pulley. The rotation of the swing eccentric shaft drives the swing arm to swing, and the swing of the swing arm drives the grinding wheel to swing along the axial direction.

4. The oscillating structure for PCB grinding equipment according to claim 1, characterized in that, The right mounting base is L-shaped, and a linear slider is provided at the bottom of the right mounting base. The linear slider is connected to a linear slide rail.

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