PCB board grinding machine

Abstract

The utility model relates to the technical field of PCB board grinding, in particular to a PCB board grinding machine. According to the PCB board grinding machine, the upper side and the lower side of a PCB can be ground at the same time, and the grinding efficiency of the PCB board is improved. A PCB board grinding machine comprises a rack, a conveying belt, a first motor, a shell, mounting plates and the like, the conveying belt is arranged on the upper left portion of the rack, the first motor is connected to the front side of the upper portion of the rack, an output shaft of the first motor is connected with the conveying belt, the shell is connected to the upper side of the right portion of the rack, and the mounting plates are connected to the inner sides of the front portion and the rear portion of the shell. According to the PCB polishing device, the output shaft of the second motor rotates to drive the polishing wheels to rotate oppositely, synchronous polishing operation is carried out on the board surfaces of the upper side and the lower side of a PCB, the upper side and the lower side of the PCB can be polished at the same time, and the polishing efficiency of the board surfaces of the PCB is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board surface grinding, in particular to a PCB board surface grinding machine. Background Art

[0002] PCB polishing is a precision process designed to improve or restore the surface quality of a PCB, ensuring better electrical connections and assembly.

[0003] Patent publication number: CN206241815U is an automatic PCB board surface grinding machine, including a frame, a motor and a variable speed wheel group connected to the motor, the motor is installed at the lower part of the frame, the variable speed wheel group is installed at the upper part of the frame, the feeding end and the discharging end of the frame are provided with transmission rollers, a feeding belt is set between the transmission rollers, the frame is provided with a grinding wheel for grinding the PCB board above the feeding belt, the grinding wheel is connected to the variable speed wheel group through a belt, and the frame is provided with pressure rollers for pressing the PCB board on both sides of the grinding wheel. Although the above patent can operate continuously and can effectively remove the dust remaining after grinding without dust removal, the degree of automation is high. However, only one side of the PCB board can be polished at a time, and the PCB board needs to be repeatedly placed and the direction of the polishing surface of the PCB board needs to be adjusted, and the polishing efficiency is low.

[0004] Therefore, a PCB surface polishing machine has been developed that can polish both the upper and lower sides of the PCB board at the same time to improve the PCB surface polishing efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art solutions in the above-mentioned background technology, the utility model provides a PCB board surface grinding machine which can grind the upper and lower sides of a PCB board at the same time and improve the PCB board surface grinding efficiency.

[0006] The technical solution of the utility model is: a PCB board surface grinding machine, including a frame, a conveyor belt, a first motor, a shell, a mounting plate, a second motor and a grinding wheel, a conveyor belt is provided on the upper left part of the frame, the front side of the upper part of the frame is connected with the first motor, the output shaft of the first motor is connected with the conveyor belt, the upper right side of the frame is connected with the shell, the inner sides of the front and rear parts of the shell are connected with mounting plates, the front side of the front mounting plate is connected with the second motor, the upper and lower parts of the mounting plate are rotatably connected with grinding wheels, and the grinding wheels are connected to the adjacent second motor output shafts.

[0007] Optionally, it also includes a third motor, a transmission roller and a transmission assembly. Multiple third motors are connected to the front sides of the left and right parts of the front mounting plate, and multiple transmission rollers are rotatably connected between the left and right parts of the mounting plate. The output shafts of the third motors are connected to adjacent transmission rollers, and transmission assemblies are provided between the front sides of adjacent transmission rollers.

[0008] Optionally, the transmission assembly includes a pulley and a belt, the front side of each transmission roller is connected to a pulley, and a belt is wound between adjacent pulleys.

[0009] Optionally, it also includes a top plate, a mounting frame, a fan and an elastic member. The top plate is slidably connected to the upper part of the outer shell, the top of the top plate and the bottom of the outer shell are connected to the mounting frame, the fans are connected to the mounting frames, the mounting plates are slidably connected to the top plate, and elastic members are connected between the left and right parts of the mounting plate and the top plate.

[0010] Optionally, the elastic member is a spring.

[0011] Optionally, the fans are each provided with a filter.

[0012] The beneficial effect is that the utility model drives the grinding wheel to rotate in opposite directions through the rotation of the second motor output shaft, and performs synchronous grinding operations on the upper and lower sides of the PCB board. The upper and lower sides of the PCB board can be polished at the same time, thereby improving the grinding efficiency of the PCB board surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the utility model.

[0015] The markings of the components in the accompanying drawings are as follows: 1_frame, 2_conveyor belt, 3_first motor, 4_housing, 5_mounting plate, 6_second motor, 7_grinding wheel, 8_third motor, 9_transmission roller, 10_transmission assembly, 11_top plate, 12_mounting frame, 13_fan, 14_spring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] A PCB board surface grinding machine, such as Figure 1-Figure 2As shown, it includes a frame 1, a conveyor belt 2, a first motor 3, a shell 4, a mounting plate 5, a second motor 6, a grinding wheel 7, a third motor 8, a transmission roller 9, a transmission assembly 10, a top plate 11, a mounting frame 12, a fan 13 and a spring 14. The conveyor belt 2 is provided at the upper left portion of the frame 1, the first motor 3 is connected to the front side of the upper portion of the frame 1, and the output shaft of the first motor 3 is connected to the conveyor belt 2. The shell 4 is connected to the upper right side of the frame 1, and the mounting plates 5 are connected to the inner sides of the front and rear portions of the shell 4. The front side of the front mounting plate 5 is connected to the second motor 6. The grinding wheels 7 are rotatably connected between the upper and lower portions of the mounting plate 5, and the grinding wheels 7 are connected to the output shafts of the adjacent second motors 6. A plurality of third motors 8 are connected to the front sides of the left and right parts of the mounting plate 5, a plurality of transmission rollers 9 are rotatably connected between the left and right parts of the mounting plate 5, the output shafts of the third motors 8 are connected to adjacent transmission rollers 9, a transmission assembly 10 is provided between the front sides of adjacent transmission rollers 9, the transmission assembly 10 includes a pulley and a belt, a pulley is connected to the front sides of the transmission rollers 9, a belt is wound between adjacent pulleys, a top plate 11 is slidably connected to the upper part of the outer shell 4, a mounting frame 12 is connected to the top of the top plate 11 and the bottom of the outer shell 4, a fan 13 is connected inside the mounting frame 12, the mounting plates 5 are slidably connected to the top plate 11, and a spring 14 is connected between the left and right parts of the mounting plate 5 and the top plate 11.

[0018] When the utility model is in use, the PCB board that needs to be polished is put into the conveyor belt 2, and the conveyor belt 2 is controlled by the output shaft of the first motor 3 to convey the PCB board to the inside of the shell 4, and is conveyed from the left part of the shell 4 to the right. After the PCB board enters the shell 4, the output shaft of the third motor 8 rotates to control the transmission roller 9 to rotate, and the transmission roller 9 cooperates with the transmission component 10 to transmit the PCB board box to the position where the grinding wheel 7 is located. The output shaft of the second motor 6 rotates to drive the grinding wheel 7 to rotate in the opposite direction, and the board surfaces on the upper and lower sides of the PCB board are synchronously polished. The PCB board after polishing is exported by the right transmission roller 9. During the polishing process, the fan 13 supplies air to the position where the grinding wheel 7 is located to avoid high temperature generated during the polishing process to damage the PCB board.

[0019] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A PCB board surface grinding machine, characterized by: The invention comprises a frame (1), a conveyor belt (2), a first motor (3), a shell (4), a mounting plate (5), a second motor (6) and a grinding wheel (7); a conveyor belt (2) is arranged on the upper left part of the frame (1); the front side of the upper part of the frame (1) is connected to the first motor (3); the output shaft of the first motor (3) is connected to the conveyor belt (2); the upper right part of the frame (1) is connected to the shell (4); the inner sides of the front and rear parts of the shell (4) are both connected to the mounting plate (5); the front side of the front mounting plate (5) is both connected to the second motor (6); the upper and lower parts of the mounting plate (5) are both rotatably connected to the grinding wheel (7); the grinding wheel (7) is connected to the output shaft of the adjacent second motor (6).

2. A PCB surface grinding machine according to claim 1, characterized in that: The invention also comprises a third motor (8), a transmission roller (9) and a transmission assembly (10); the front sides of the left and right parts of the front mounting plate (5) are both connected to a plurality of third motors (8); the left and right parts of the mounting plate (5) are both rotatably connected to a plurality of transmission rollers (9); the output shafts of the third motors (8) are both connected to adjacent transmission rollers (9); and the front sides of adjacent transmission rollers (9) are both provided with a transmission assembly (10).

3. A PCB surface grinding machine according to claim 2, characterized in that: The transmission assembly (10) comprises a pulley and a belt. The front side of the transmission roller (9) is connected to a pulley, and a belt is wound between adjacent pulleys.

4. A PCB surface grinding machine according to claim 3, characterized in that: The invention also comprises a top plate (11), a mounting frame (12), a fan (13) and an elastic member. The top of the outer shell (4) is slidably connected to the top plate (11). The top of the top plate (11) and the bottom of the outer shell (4) are both connected to the mounting frame (12). The fan (13) is connected inside the mounting frame (12). The mounting plates (5) are both slidably connected to the top plate (11). The left and right parts of the mounting plates (5) are both connected to the top plate (11) with an elastic member.

5. The PCB surface grinding machine according to claim 4 is characterized in that: The elastic member is a spring (14).

6. A PCB surface grinding machine according to claim 5, characterized in that: The fan (13) is provided with a filter screen.

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