Circuit board polishing equipment

Abstract

The utility model relates to circuit board polishing equipment which comprises a machine table, a shell is arranged at the top of the machine table, a supporting seat driven by a hydraulic rod is arranged at the top of the machine table in the shell, a rectangular groove is formed in the top end face of the supporting seat, and the rectangular groove is connected with a vacuum pump through a pipeline; a supporting seat is arranged on the top of the machine table on one side of the supporting seat, a grinding mechanism driven by an electric push rod is arranged on the top of the supporting seat, the grinding mechanism comprises a U-shaped plate, a polishing roller and a grinding roller driven by a motor I are arranged in an opening of the U-shaped plate, and an air inlet channel is formed in the side wall of the polishing roller. Wherein air outlet holes communicated with the air inlet channel are evenly formed in the outer wall of the polishing roller, bristles are further arranged on the outer wall of the polishing roller in the radial direction, rotating shafts fixed to the side wall of the U-shaped plate through bearings are arranged at the two ends of the polishing roller and the two ends of the grinding roller, and a communicating channel communicated with the air inlet channel is formed in one rotating shaft of the polishing roller. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] The present invention relates to the field of circuit board processing, and particularly relates to a circuit board grinding device. Background Art

[0002] A circuit board is one of the important components of the electronics industry. Almost every electronic device, from small electronic watches and calculators to large computers, communication electronic devices, and military weapon systems, as long as there are electronic components such as integrated circuits, printed circuit boards are used for their electrical interconnection. Therefore, the application of circuit boards is extremely extensive. During the manufacturing process of circuit boards, grinding is required.

[0003] When the circuit board is laid flat on the support for grinding, a large amount of impurities generated during grinding accumulate on the top surface of the circuit board. When the grinding seat reciprocates to grind the circuit board, the impurities accumulated on its top surface will undoubtedly affect the grinding effect and efficiency. At the same time, since the circuit board is fixed by a fixture, the edges of the circuit board wrapped by the fixture are inconvenient for grinding work, thus affecting its processing. Summary of the Invention

[0004] The purpose of the present invention is to provide a circuit board grinding device.

[0005] The technical problems of the present invention are mainly solved by the following technical solutions:

[0006] A circuit board grinding device includes a machine table. A housing is provided on the top of the machine table, and a switch door is provided on the housing. A support seat driven by a hydraulic rod is provided on the top of the machine table inside the housing. A rectangular groove is provided on the top surface of the support seat, and the rectangular groove is connected to a vacuum pump through a pipeline.

[0007] A grinding mechanism driven by an electric push rod is provided on the top of the machine table on one side of the support seat. The grinding mechanism includes a U-shaped plate. A polishing roller and a grinding roller driven by a motor I are provided inside the opening of the U-shaped plate. An air inlet channel is provided in the side wall of the polishing roller. Air outlet holes communicating with the air inlet channel are uniformly provided on the outer wall of the polishing roller. Brush hairs are also radially provided on the outer wall of the polishing roller and are staggered with the air outlet holes. Rotating shafts fixed to the side walls of the U-shaped plate through bearings are provided at both ends of the polishing roller and the grinding roller. A communication channel communicating with the air inlet channel is provided on one rotating shaft of the polishing roller, and an L-shaped pipe connected to a suction fan through a pipeline is provided in the communication channel.

[0008] Preferably, the L-shaped pipe is fixedly connected to the U-shaped plate through a convex seat. One end of the L-shaped pipe is inserted into the communication channel, and the size of the L-shaped pipe is adapted to the size of the communication channel.

[0009] Preferably, the bottom end of the grinding roller extends to the outside of the bottom of the C-shaped plate, where the bottom ends of the lower bristles and the bottom end of the grinding roller are on the same horizontal plane. The grinding roller is located above the support base, and the support base is located inside the housing between the two ends of the grinding roller.

[0010] Preferably, a rotating shaft driven by a motor II is arranged in the rectangular groove. A ejector rod is radially arranged on the outer wall of the rotating shaft, and the length of the ejector rod is greater than the distance between the rotating shaft and the top end of the rectangular groove.

[0011] Preferably, pulley wheels are arranged on a rotating shaft of each of the grinding roller and the polishing roller, and a transmission belt is connected between the two groups of pulley wheels.

[0012] Preferably, an observation window is arranged on the side wall of the housing, and a dust removal pipe connected to a dust removal fan is further arranged on the housing.

[0013] The beneficial effects of the present invention are as follows: In the present invention, the circuit board is placed above the support base and covers the rectangular groove. At this time, the circuit board is adsorbed and fixed on the support base by evacuating the rectangular groove with a vacuum pump to prevent it from shifting during the subsequent process. At the same time, the hydraulic rod drives the support base to drive the circuit board to move up to a specified position. The electric push rod drives the grinding mechanism to move leftward to the top surface of the current circuit board and move back and forth left and right, so as to cover the entire end face of the circuit board. During this process, the motor I drives the grinding roller to rotate, so as to grind the top surface of the circuit board. At the same time, the motor I also indirectly drives the polishing roller and the bristles to clean and polish the top surface of the ground circuit board, preventing dust and other impurities from accumulating on the top surface of the circuit board for a long time and affecting the subsequent grinding work of the grinding roller on it. When the polishing roller is rotating, the exhaust fan injects gas into the intake passage through the L-shaped pipe and the communication channel and discharges it from a plurality of air outlet holes. At this time, the discharged air flow blows the top surface of the circuit board, so that the bristles can more conveniently clean the dust and impurities on the top surface of the circuit board. Finally, the diffused dust and other impurities are extracted by the dust removal pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present invention;

[0015] Figure 2 is Figure 1 a cross-sectional view of

[0016] Figure 3 is a cross-sectional view of the grinding mechanism of the present invention in the top view direction.

[0017] In the figure: 1. Machine platform, 2. Housing, 3. Hydraulic rod, 4. Support base, 5. Rectangular groove, 6. Support, 7. Electric push rod, 8. Grinding mechanism, 81. C-shaped plate, 82. Polishing roller, 83. Grinding roller, 84. Motor I, 85. Air inlet channel, 86. Brush bristles, 87. Rotating shaft, 88. Connecting channel, 89. L-shaped pipe, 9. Convex seat, 10. Rotating shaft, 11. Motor II, 12. Thrust rod, 13. Pulley, 14. Transmission belt. Detailed implementation mode

[0018] The technical solution of the present invention will be further specifically described below through embodiments in conjunction with the accompanying drawings.

[0019] A circuit board grinding device includes a machine platform 1. A housing 2 is arranged on the top of the machine platform 1, and a switch door is arranged on the housing 2. A support base 4 driven by a hydraulic rod 3 is arranged on the top of the machine platform 1 inside the housing 2. A rectangular groove 5 is arranged on the top end surface of the support base 4, and the rectangular groove 5 is connected to a vacuum pump through a pipeline.

[0020] A support 6 is arranged on the top of the machine platform 1 on one side of the support base 4. A grinding mechanism 8 driven by an electric push rod 7 is arranged on the top of the support 6. The grinding mechanism 8 includes a C-shaped plate 81. A polishing roller 82 and a grinding roller 83 driven by a motor I 84 are arranged inside the opening of the C-shaped plate 81. An air inlet channel 85 is arranged in the side wall of the polishing roller 82. Air outlet holes communicating with the air inlet channel 85 are uniformly arranged on the outer wall of the polishing roller 82. Brush bristles 86 radially arranged and staggered with the air outlet holes are also arranged on the outer wall of the polishing roller 82. Rotating shafts 87 fixed on the side walls of the C-shaped plate 81 through bearings are arranged at both ends of the polishing roller 82 and the grinding roller 83. A connecting channel 88 communicating with the air inlet channel 85 is arranged on one rotating shaft 87 of the polishing roller 82, and an L-shaped pipe 89 connected to a suction fan through a pipeline is arranged in the connecting channel 88.

[0021] In this embodiment, the L-shaped pipe 89 is fixedly connected to the C-shaped plate 81 through a convex seat 10. One end of the L-shaped pipe 89 is inserted into the connecting channel 88, and the size of the L-shaped pipe 89 is adapted to the size of the connecting channel 88. So that the L-shaped pipe 89 will not rotate together with the rotating shaft 87 and the polishing roller 82. Instead, when the polishing roller 82 drives the rotating shaft 87 to rotate, the connecting channel 88 on the rotating shaft 87 will rotate on one end of the L-shaped pipe 89.

[0022] As Figure 2 shown, the bottom end of the grinding roller 83 extends to the outside of the bottom of the C-shaped plate 81. The bottom ends of the lower brush bristles 86 and the bottom end of the grinding roller 83 are on the same horizontal plane. The grinding roller 83 is located above the support base 4, and the support base 4 is located inside the housing 2 between the two ends of the grinding roller 83.

[0023] In this embodiment, a rotating shaft 10 driven by a motor II 11 is arranged in a rectangular groove 5. A push rod 12 is radially arranged on the outer wall of the rotating shaft 10, and the length of the push rod 12 is greater than the distance between the rotating shaft 10 and the top end of the rectangular groove 5. After the polishing is completed, the circuit board may adhere to the support base 4 under pressure and is not easy to separate, or the edges of the circuit board are all above the support base 4, resulting in no suitable grasping point, and thus it is not convenient to remove the circuit board from the support base 4. At this time, the motor II 11 can be used to drive the rotating shaft 10 to drive the push rod 12 to rotate, so as to lift the circuit board and make it tilt up, so that people can grasp the tilted part of the circuit board at this time, and then it is convenient to remove it from the support base 4.

[0024] As Figure 3 shown, pulley wheels 13 are arranged on a rotating shaft 87 of both the polishing roller 82 and the grinding roller 83. A transmission belt 14 is connected between the two groups of pulley wheels 13. When the motor I 84 drives the grinding roller 83 to rotate, it can also drive the polishing roller 82 to rotate together through components such as the pulley wheels 13 and the transmission belt 14.

[0025] In this embodiment, an observation window is arranged on the side wall of the housing 2, and a dust removal pipe connected to a dust removal fan is also arranged on the housing 2. The dust removal fan and the dust removal pipe are used to extract the dust diffused in the housing 2 to improve the working environment.

[0026] The usage method of the present invention: Place the circuit board above the support base 4 and cover the rectangular groove 5. At this time, the circuit board is adsorbed and fixed on the support base 4 by evacuating the rectangular groove 5 with a vacuum pump to prevent it from shifting during the subsequent process. At the same time, the hydraulic rod 3 drives the support base 4 to drive the circuit board to move up to a specified position. The electric push rod 7 drives the grinding mechanism 8 to move left to the top surface of the circuit board at this time and move back and forth left and right, so as to cover the entire end surface of the circuit board. During this process, the motor I 84 drives the grinding roller 83 to rotate, and then the top surface of the circuit board is polished.

[0027] At the same time, when the grinding roller 83 is rotating, it will drive the polishing roller 82 to rotate together. The polishing roller 82 cleans and polishes the top surface of the polished circuit board through the bristles 86 to prevent dust and other impurities from accumulating on the top surface of the circuit board for a long time and affecting the subsequent grinding roller 83 to continue grinding it. When the polishing roller 82 is rotating, the exhaust fan injects gas into the air inlet channel 85 through the L-shaped tube 89 and the connecting channel 88, and then discharges it from a number of air outlets. At this time, the discharged air flow sweeps the top surface of the circuit board, so that the bristles 86 can more conveniently clean the dust and impurities on the top surface of the circuit board. Finally, the diffuse dust and other impurities are extracted by the dust removal pipe. After the grinding is completed, the rectangular groove 5 is deflated, and the motor II11 drives the rotating shaft 10 to drive the push rod 12 to rotate, thereby lifting the circuit board to make it tilted and tilted, so that people can grab the tilted part of the circuit board at this time, and then conveniently remove it from the support seat 4.

[0028] The present invention is described in detail above, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A circuit board grinding device, including a machine table, wherein a housing is arranged on the top of the machine table, and a switch door is arranged on the housing, and it is characterized in that: A support seat driven by a hydraulic rod is arranged on the top of the machine table inside the housing, wherein a rectangular groove is arranged on the top end surface of the support seat, and the rectangular groove is connected with a vacuum pump through a pipeline; A support is arranged on the top of the machine table on one side of the support seat, wherein a grinding mechanism driven by an electric push rod is arranged on the top of the support. The grinding mechanism includes a U-shaped plate. A polishing roller and a grinding roller driven by a motor I are arranged inside the opening of the U-shaped plate. An air inlet channel is arranged in the side wall of the polishing roller. Air outlet holes communicated with the air inlet channel are uniformly arranged on the outer wall of the polishing roller. And bristles radially arranged and staggered with the air outlet holes are also arranged on the outer wall of the polishing roller. Rotating shafts fixed on the side walls of the U-shaped plate through bearings are arranged at both ends of the polishing roller and the grinding roller. A communication channel communicated with the air inlet channel is arranged on one rotating shaft of the polishing roller, and an L-shaped pipe connected with a suction fan through a pipeline is arranged in the communication channel.

2. A circuit board polishing device according to claim 1, characterized in that: The L-shaped pipe is fixedly connected with the U-shaped plate through a convex seat. One end of the L-shaped pipe is inserted into the communication channel, and the size of the L-shaped pipe is adapted to the size of the communication channel.

3. A circuit board polishing device according to claim 1, characterized in that: The bottom end of the grinding roller extends to the outside of the bottom of the U-shaped plate. The bottom ends of the lower bristles and the bottom end of the grinding roller are on the same horizontal plane. The grinding roller is located above the support seat, and the support seat is located inside the housing between the two ends of the grinding roller.

4. A circuit board polishing device according to claim 1, characterized in that: A rotating shaft driven by a motor II is arranged in the rectangular groove. A top rod is radially arranged on the outer wall of the rotating shaft, and the length of the top rod is greater than the distance between the rotating shaft and the top end of the rectangular groove.

5. A circuit board polishing device according to claim 1, characterized in that: Pulley wheels are arranged on one rotating shaft of the grinding roller and the polishing roller, and the two groups of pulley wheels are connected through a transmission belt.

6. A circuit board polishing device according to claim 1, characterized in that: An observation window is arranged on the side wall of the housing, and a dust removal pipe connected with a dust removal fan is also arranged on the housing.

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