Circuit board grinding structure and grinding method for circuit board processing

Abstract

The invention relates to the technical field of circuit board processing, and discloses a circuit board polishing structure for circuit board processing and a polishing method thereof, comprising a working shell, a protective frame fixedly connected to the top of the working shell, a square hole opened on the top of the protective frame, an electric telescopic rod fixedly connected to one side of the inner wall of the working shell, a movable end of the electric telescopic rod fixedly connected to a fixed block, the top outer wall of the fixed block is slidably connected to the inner wall of the square hole, the top of the fixed block is fixedly connected to the square shell, and also includes a stable polishing mechanism, placing the circuit board on the top of the bearing shell, starting the electric telescopic rod, the electric telescopic rod drives the fixed block to move back and forth, the fixed block drives the square shell to move, the square shell drives the bearing shell to move, the bearing shell drives the circuit board to move back and forth, and at the same time starting the motor, the motor drives the rotating shaft to rotate, the rotating shaft drives the polishing roller to rotate, and during the rotation of the polishing roller, the reciprocating circuit board can be polished.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board processing, in particular to a circuit board polishing structure for circuit board processing and a polishing method thereof. Background Art

[0002] The names of circuit boards include: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high-frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board, etc. Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Circuit boards can be called printed circuit boards or printed circuit boards. Soft-hard combination boards are flexible circuit boards and rigid circuit boards. After processes such as pressing, they are combined together according to relevant process requirements to form a circuit board with FPC characteristics and PCB characteristics.

[0003] During the processing of circuit boards, the surface of the circuit boards needs to be polished. In the prior art, the polishing structure usually uses a polishing roller to polish the reciprocating circuit board. After the circuit board is polished, the circuit board becomes thinner, which affects the fit between the polishing roller and the circuit board during subsequent polishing, and affects the polishing quality of the circuit board. Summary of the invention

[0004] The object of the present invention is to provide a circuit board grinding structure and a grinding method for circuit board processing to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention relates to a circuit board polishing structure for circuit board processing and a polishing method thereof, comprising a working shell, a protective frame fixedly connected to the top of the working shell, a square hole being opened on the top of the protective frame, an electric telescopic rod fixedly connected to one side of the inner wall of the working shell, a movable end of the electric telescopic rod fixedly connected to a fixed block, the top outer wall of the fixed block is slidably connected to the inner wall of the square hole, the top of the fixed block is fixedly connected to the square shell, and also comprises a stable polishing mechanism, the stable polishing mechanism comprises a motor fixedly connected to one side of the protective frame, the output end of the motor is fixedly connected to a rotating shaft, one end of the rotating shaft passes through the protective frame and extends to the inside of the protective frame, the outer wall of the rotating shaft is fixedly connected to a polishing roller, the outer walls of the two ends of the rotating shaft are respectively fixedly connected to screws, and the outer walls of the screws are provided with clamping components.

[0007] Furthermore, the clamping assembly includes a threaded block threadedly connected to the outer wall of the screw rod, the bottom of the threaded block is fixedly connected to a square plate, both sides of the inner wall of the protective frame are fixedly connected to limit rods, one end of the limit rods penetrates the square plate and extends to the outside of the square plate, the bottom of the square plate is fixedly connected to a clamping shell, the inner wall of the clamping shell is slidably connected to a sliding plate, one side of the sliding plate is fixedly connected to an arc-shaped clamping frame, the side of the sliding plate away from the arc-shaped clamping frame is fixedly connected to a first spring, and one end of the first spring is fixedly connected to one side of the inner wall of the clamping shell.

[0008] Furthermore, an extrusion assembly is provided on the top of the square shell, and the extrusion assembly includes a bearing shell contacting the top of the square shell, both sides of the inner wall of the bearing shell are slidably connected with sliding frames, one end of the sliding frame passes through the bearing shell and extends to the outside of the bearing shell, a circuit board is contacting the top of the bearing shell, and limiting holes are provided on both sides of the inner wall of the bearing shell.

[0009] Furthermore, one end of the limiting hole passes through the bearing shell and extends to the interior of the square shell, a first return spring is fixedly connected between the two sliding frames, vertical plates are fixedly connected to the two sides of the bottom of the sliding frame respectively, an outer wall of one end of the vertical plate is slidably connected to the interior of the limiting hole, and a rotating plate is rotatably connected to one side of the bottom of the vertical plate.

[0010] Furthermore, one end of the rotating plate away from the vertical plate is rotatably connected to the lifting plate, and vertical rods are fixedly connected on both sides of the bottom of the inner wall of the square shell. One end of the vertical rod passes through the lifting plate and extends to the outside of the lifting plate. A manual telescopic rod is fixedly connected to the top of the lifting plate. The movable end of the manual telescopic rod passes through the square shell and extends to the outside of the square shell. The top of the manual telescopic rod is fixedly connected to the bottom of the load-bearing shell.

[0011] Furthermore, a cleaning assembly is provided on the side wall of the sliding plate, and the cleaning assembly includes a rotating bar rotatably connected to both ends of the sliding plate on one side close to the first spring, one end of the rotating bar is rotatably connected to a sliding block, the inner wall of the sliding block is slidably connected to a fixing rod, the bottom of the fixing rod is fixedly connected to the bottom of the inner wall of the clamping shell, and the top of the sliding block is fixedly connected to an L-shaped frame.

[0012] Furthermore, an L-shaped shell is fixedly connected to the top of the clamping shell, a square rod is fixedly connected to the bottom of one side of the L-shaped frame, one end of the square rod passes through the L-shaped shell and extends to the inside of the L-shaped shell, a lifting frame is slidably connected to the inner wall of the L-shaped shell, a second spring is fixedly connected to the bottom of the inner wall of the L-shaped shell, the top of the second spring is fixedly connected to one end of the lifting frame, and the bottom end of the lifting frame passes through the L-shaped shell and extends to the outside of the L-shaped shell.

[0013] Furthermore, a flexible cleaning strip is fixedly connected to the bottom of the lifting frame, and curved pipes are respectively connected to both sides of the L-shaped shell, one end of the curved pipe is connected to an exhaust hopper, one side of the exhaust hopper is fixedly connected to the side wall of the L-shaped shell, and air pipes are respectively connected to the two ends of the top of the clamping shell, and one end of the air pipe is connected to one side of the inner wall of the L-shaped shell.

[0014] Furthermore, auxiliary components are provided on both sides of the grinding roller, and the auxiliary components include a second return spring fixedly connected to both sides of the grinding roller, one end of the second return spring is fixedly connected to a hexagonal block, and the inner wall of the hexagonal block is arranged outside the screw rod.

[0015] A method for polishing a circuit board polishing structure for circuit board processing, comprising the following steps;

[0016] Step 1: Place the circuit board on the top of the bearing shell, start the electric telescopic rod, the electric telescopic rod drives the fixed block to move back and forth, and the fixed block drives the square shell to move;

[0017] Step 2: The square shell drives the bearing shell to move, and the bearing shell drives the circuit board to move back and forth, and at the same time, the motor is started, and the motor drives the rotating shaft to rotate;

[0018] Step 3: The rotating shaft drives the grinding roller to rotate, and the rotating shaft drives the screw rod to rotate. The screw rod is limited by the limit rod, and during the rotation of the screw rod, the threaded block and the square plate are driven to move along the outer wall of the limit rod;

[0019] Step 4: The square plate drives the clamping shell to move, the clamping shell drives the sliding plate to move, the sliding plate drives the arc-shaped clamping frame to move, and the two arc-shaped clamping frames move closer to each other.

[0020] The present invention has the following beneficial effects:

[0021] (1) According to the present invention, a circuit board is placed on the top of a carrying shell, and an electric telescopic rod is started. The electric telescopic rod drives a fixed block to move back and forth, and the fixed block drives a square shell to move. The square shell drives a carrying shell to move. The carrying shell drives the circuit board to move back and forth, and at the same time, a motor is started. The motor drives a rotating shaft to rotate. The rotating shaft drives a grinding roller to rotate. During the rotation of the grinding roller, the reciprocating circuit board can be ground. The rotating shaft drives a screw rod to rotate. The screw rod is limited by a limiting rod. During the rotation of the screw rod, the threaded block and the square plate are driven to move along the outer wall of the limiting rod. The square plate drives a clamping shell to move. The clamping shell drives a sliding plate to move. The sliding plate drives an arc-shaped clamping frame to move. The two arc-shaped clamping frames move closer to each other. During the movement of the two arc-shaped clamping frames, the circuit board placed on the top of the carrying shell can be clamped to prevent the circuit board from shaking left and right during grinding, thereby improving the grinding effect of the circuit board.

[0022] (2) In the present invention, when the two clamping shells approach each other, the clamping shell drives the L-shaped shell to move, the L-shaped shell drives the lifting frame to move, and the lifting frame drives the flexible cleaning strip to move. After the two flexible cleaning strips approach each other, they can come into contact with the top of the circuit board to scrape and clean the impurity particles that appear when the circuit board is polished. When the arc-shaped clamping frame clamps the circuit board, it is subjected to the reaction force of the circuit board, so that the arc-shaped clamping frame drives the sliding plate to move toward the inside of the clamping shell, and the sliding plate drives the rotating strip to move. The rotating strip is limited by the fixed rod, and the sliding bar drives the sliding block to move downward along the outer wall of the fixed rod. The sliding block drives the L-shaped frame to move downward, and the L-shaped frame drives the square rod to move downward. During the downward movement of the square rod, the top of the lifting frame will be pressed down, and the lifting frame drives the flexible cleaning strip to move further downward, thereby improving the fitting effect between the flexible cleaning strip and the top of the circuit board, and improving the cleaning effect of the flexible cleaning strip on the impurities on the top of the circuit board.

[0023] (3) In the present invention, when the sliding plate moves toward the inside of the clamping shell, the airflow inside the clamping shell enters into the inside of the air pipe, the airflow enters into the inside of the L-shaped shell through the air pipe, the airflow enters into the inside of the bent pipe through the L-shaped shell, the airflow enters into the inside of the exhaust hopper through the bent pipe, and the airflow is discharged outward through the exhaust hopper, thereby jet cleaning the impurities scraped off by the flexible cleaning strip, preventing the impurities from staying on the top of the circuit board, and improving the grinding effect of the rotating shaft on the circuit board.

[0024] (4) According to the present invention, when the arc-shaped clamping frame moves, the arc-shaped clamping frame will first come into contact with one end of the sliding frame, so that the sliding frame moves toward the inside of the bearing shell, and the two groups of sliding frames approach each other. The sliding frame drives the vertical plate to move, and the vertical plate drives the rotating plate to move. Limited by the vertical rod, the rotating plate drives the lifting plate to move upward along the vertical rod, and the lifting plate drives the manual telescopic rod to move upward, and the manual telescopic rod drives the bearing shell to move upward, and the bearing shell drives the circuit board to move upward. During the upward movement of the circuit board, it can be further fitted with the bottom of the grinding roller to prevent the circuit board from becoming thinner during the grinding process. The distance between the circuit board and the grinding roller is increased, thereby improving the grinding effect of the grinding roller.

[0025] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1It is a schematic diagram of the overall front structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the top view of the thread block of the present invention;

[0030] Figure 4 It is a schematic diagram of the side structure of the clamping shell of the present invention;

[0031] Figure 5 This is a schematic diagram of the side structure of the L-shaped shell of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the square shell portion of the present invention;

[0033] Figure 7 It is a schematic diagram of the top view of the lifting plate of the present invention;

[0034] Figure 8 For the present invention Figure 3 A magnified view of middle;

[0035] Fig. 9 It is a schematic diagram of the polishing method of the present invention.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] In the figure: 1, working shell; 2, protective frame; 3, square hole; 4, electric telescopic rod; 5, fixed block; 6, square shell; 7, stable grinding mechanism; 71, motor; 72, rotating shaft; 73, grinding roller; 74, screw rod; 75, clamping assembly; 76, extrusion assembly; 77, cleaning assembly; 78, auxiliary assembly; 751, threaded block; 752, square plate; 753, limit rod; 754, clamping shell; 755, Sliding plate; 756, arc-shaped clamping frame; 757, first spring; 761, bearing shell; 762, sliding frame; 763, circuit board; 764, limiting hole; 765, first return spring; 766, vertical plate; 767, rotating plate; 768, lifting plate; 769, vertical rod; 7610, manual telescopic rod; 771, fixed rod; 772, slider; 773, rotating bar; 774, L-shaped frame; 775, L-shaped shell; 776, square rod; 777, lifting frame; 778, second spring; 779, flexible cleaning strip; 7710, elbow; 7711, exhaust bucket; 7712, air pipe; 781, second return spring; 782, hexagonal block. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1, please refer to Figure 1 - Fig. 9 As shown, the present invention is a circuit board grinding structure and a grinding method for circuit board processing, comprising a working shell 1, a protective frame 2 is fixedly connected to the top of the working shell 1, a square hole 3 is opened on the top of the protective frame 2, an electric telescopic rod 4 is fixedly connected to one side of the inner wall of the working shell 1, a fixed block 5 is fixedly connected to the movable end of the electric telescopic rod 4, the top outer wall of the fixed block 5 is slidably connected to the inner wall of the square hole 3, the purpose of such a setting is to limit the moving track of the fixed block 5, the top of the fixed block 5 is fixedly connected to the square shell 6, and also includes;

[0040] The stable grinding mechanism 7 includes a motor 71 fixedly connected to one side of the protective frame 2, the output end of the motor 71 is fixedly connected to a rotating shaft 72, one end of the rotating shaft 72 passes through the protective frame 2 and extends to the inside of the protective frame 2, the outer wall of the rotating shaft 72 is fixedly connected to a grinding roller 73, the outer walls of both ends of the rotating shaft 72 are respectively fixedly connected to a screw rod 74, and the outer wall of the screw rod 74 is provided with a clamping assembly 75.

[0041] The clamping assembly 75 includes a threaded block 751 threadedly connected to the outer wall of the screw rod 74, the bottom of the threaded block 751 is fixedly connected to a square plate 752, and the inner wall of the protective frame 2 is respectively fixedly connected to a limiting rod 753, one end of the limiting rod 753 passes through the square plate 752 and extends to the outside of the square plate 752. The purpose of this arrangement is to enable the threaded block 751 to move laterally, the bottom of the square plate 752 is fixedly connected to a clamping shell 754, the inner wall of the clamping shell 754 is slidably connected to a sliding plate 755, one side of the sliding plate 755 is fixedly connected to an arc-shaped clamping frame 756, and the side of the sliding plate 755 away from the arc-shaped clamping frame 756 is fixedly connected to a first spring 757, and one end of the first spring 757 is fixedly connected to one side of the inner wall of the clamping shell 754.

[0042] The top of the square shell 6 is provided with an extrusion assembly 76, which includes a bearing shell 761 contacting the top of the square shell 6, and sliding frames 762 are slidably connected to both sides of the inner wall of the bearing shell 761, one end of the sliding frame 762 penetrates the bearing shell 761 and extends to the outside of the bearing shell 761, and a circuit board 763 is contacted and provided on the top of the bearing shell 761, and the circuit board 763 is placed on the top of the bearing shell 761, and the electric telescopic rod 4 is started, and the electric telescopic rod 4 drives the fixed block 5 to move back and forth, and the fixed block 5 drives the square shell 6 to move, and the square shell 6 drives the bearing shell 761 to move, and the bearing shell 761 drives the circuit board 763 to move back and forth, and at the same time, the motor 71 is started, and the motor 71 drives the rotating shaft 72 to rotate, and the rotating shaft 72 drives the grinding roller 73 to rotate, and during the rotation of the grinding roller 73, the reciprocating circuit board 763 can be polished, and limiting holes 764 are provided on both sides of the inner wall of the bearing shell 761.

[0043] One end of the limiting hole 764 passes through the supporting shell 761 and extends to the interior of the square shell 6. A first reset spring 765 is fixedly connected between the two sliding frames 762. The purpose of this arrangement is to produce reset. Vertical plates 766 are fixedly connected to the two sides of the bottom of the sliding frame 762 respectively. The outer wall of one end of the vertical plate 766 is slidably connected to the interior of the limiting hole 764, and a rotating plate 767 is rotatably connected to one side of the bottom of the vertical plate 766.

[0044] The end of the rotating plate 767 away from the vertical plate 766 is rotatably connected to the lifting plate 768, and the two sides of the bottom of the inner wall of the square shell 6 are respectively fixedly connected with vertical rods 769, one end of the vertical rod 769 penetrates the lifting plate 768 and extends to the outside of the lifting plate 768, and the top of the lifting plate 768 is fixedly connected to the manual telescopic rod 7610, the movable end of the manual telescopic rod 7610 penetrates the square shell 6 and extends to the outside of the square shell 6, and the top of the manual telescopic rod 7610 is fixedly connected to the bottom of the supporting shell 761, and the two arc-shaped clamping frames 756 approach each other. During the movement of the two arc-shaped clamping frames 756, the circuit board 763 placed on the top of the supporting shell 761 can be clamped to prevent the circuit board 763 from shaking left and right during polishing, thereby improving the polishing effect of the circuit board 763.

[0045] In embodiment 2, a cleaning assembly 77 is provided on the side wall of the sliding plate 755, and the cleaning assembly 77 includes a rotating bar 773 rotatably connected to both ends of the sliding plate 755 near the first spring 757, one end of the rotating bar 773 is rotatably connected to a slider 772, the inner wall of the slider 772 is slidably connected to a fixing rod 771, the bottom of the fixing rod 771 is fixedly connected to the bottom of the inner wall of the clamping shell 754, and the top of the slider 772 is fixedly connected to an L-shaped frame 774.

[0046] An L-shaped shell 775 is fixedly connected to the top of the clamping shell 754, a square rod 776 is fixedly connected to the bottom of one side of the L-shaped frame 774, one end of the square rod 776 penetrates the L-shaped shell 775 and extends to the inside of the L-shaped shell 775, a lifting frame 777 is slidably connected to the inner wall of the L-shaped shell 775, a second spring 778 is fixedly connected to the bottom of the inner wall of the L-shaped shell 775, the top end of the second spring 778 is fixedly connected to one end of the lifting frame 777, and the bottom end of the lifting frame 777 penetrates the L-shaped shell 775 and extends to the outside of the L-shaped shell 775.

[0047] A flexible cleaning strip 779 is fixedly connected to the bottom of the lifting frame 777. When the two clamping shells 754 approach each other, the clamping shell 754 drives the L-shaped shell 775 to move, the L-shaped shell 775 drives the lifting frame 777 to move, and the lifting frame 777 drives the flexible cleaning strip 779 to move. After the two flexible cleaning strips 779 approach each other, they can come into contact with the top of the circuit board 763 to scrape and clean the impurity particles that appear when the circuit board 763 is polished. The two sides of the L-shaped shell 775 are respectively connected to a bent pipe 7710, and one end of the bent pipe 7710 is connected to an exhaust hopper 7711. The exhaust hopper 7711 is connected to the exhaust hopper 7712. One side of 711 is fixedly connected to the side wall of the L-shaped shell 775, and the two ends of the top of the clamping shell 754 are respectively connected to the air pipe 7712, and one end of the air pipe 7712 is connected to one side of the inner wall of the L-shaped shell 775. When the two clamping shells 754 approach each other, the clamping shell 754 drives the L-shaped shell 775 to move, and the L-shaped shell 775 drives the lifting frame 777 to move, and the lifting frame 777 drives the flexible cleaning strip 779 to move. After the two flexible cleaning strips 779 approach each other, they can come into contact with the top of the circuit board 763 to scrape and clean the impurity particles that appear when the circuit board 763 is polished.

[0048] Auxiliary components 78 are provided on both sides of the grinding roller 73, and the auxiliary components 78 include second return springs 781 fixedly connected to both sides of the grinding roller 73, one end of the second return spring 781 is fixedly connected to a hexagonal block 782, and the inner wall of the hexagonal block 782 is arranged on the outside of the screw rod 74. Under the elastic deformation action of the second return spring 781, when the thread block 751 moves to one end of the screw rod 74, the hexagonal block 782 can squeeze the thread block 751 so that the thread block 751 contacts the thread groove of the screw rod 74, and when the motor 71 rotates in the opposite direction, the thread block 751 can be reset.

[0049] A method for polishing a circuit board polishing structure for circuit board processing, comprising the following steps;

[0050] Step 1: Place the circuit board 763 on the top of the carrying shell 761, start the electric telescopic rod 4, the electric telescopic rod 4 drives the fixed block 5 to move back and forth, and the fixed block 5 drives the square shell 6 to move;

[0051] Step 2: the square shell 6 drives the carrying shell 761 to move, and the carrying shell 761 drives the circuit board 763 to move back and forth, and at the same time the motor 71 is started, and the motor 71 drives the rotating shaft 72 to rotate;

[0052] Step 3: The rotating shaft 72 drives the grinding roller 73 to rotate, and the rotating shaft 72 drives the screw rod 74 to rotate. The screw rod 74 is limited by the limit rod 753, and during the rotation of the screw rod 74, the threaded block 751 and the square plate 752 are driven to move along the outer wall of the limit rod 753;

[0053] Step 4: the square plate 752 drives the clamping shell 754 to move, the clamping shell 754 drives the sliding plate 755 to move, the sliding plate 755 drives the arc-shaped clamping frame 756 to move, and the two arc-shaped clamping frames 756 move closer to each other.

[0054] When in use, place the circuit board 763 on the top of the bearing shell 761, start the electric telescopic rod 4, the electric telescopic rod 4 drives the fixed block 5 to move back and forth, the fixed block 5 drives the square shell 6 to move, the square shell 6 drives the bearing shell 761 to move, the bearing shell 761 drives the circuit board 763 to move back and forth, and at the same time start the motor 71, the motor 71 drives the rotating shaft 72 to rotate, the rotating shaft 72 drives the grinding roller 73 to rotate, and during the rotation of the grinding roller 73, the reciprocating circuit board 763 can be polished, the rotating shaft 72 drives the screw rod 74 to rotate, and is limited. The rod 753 is limited, and the screw rod 74 drives the threaded block 751 and the square plate 752 to move along the outer wall of the limit rod 753 during rotation. The square plate 752 drives the clamping shell 754 to move, and the clamping shell 754 drives the sliding plate 755 to move. The sliding plate 755 drives the arc clamping frame 756 to move. The two arc clamping frames 756 approach each other. During the movement of the two arc clamping frames 756, the circuit board 763 placed on the top of the supporting shell 761 can be clamped to prevent the circuit board 763 from shaking left and right during grinding, thereby improving the grinding effect of the circuit board 763.

[0055] When the two clamping shells 754 approach each other, the clamping shell 754 drives the L-shaped shell 775 to move, the L-shaped shell 775 drives the lifting frame 777 to move, and the lifting frame 777 drives the flexible cleaning strip 779 to move. After the two flexible cleaning strips 779 approach each other, they can come into contact with the top of the circuit board 763 to scrape and clean the foreign particles that appear when the circuit board 763 is polished. When the arc-shaped clamping frame 756 clamps the circuit board 763, it is subjected to the reaction force of the circuit board 763, so that the arc-shaped clamping frame 756 drives the sliding plate 755 to move toward the inside of the clamping shell 754, and the sliding plate 755 is moved to the inside of the clamping shell 754. The movable plate 755 drives the rotating bar 773 to move. Limited by the fixed rod 771, the rotating bar 773 drives the slider 772 to move downward along the outer wall of the fixed rod 771. The slider 772 drives the L-shaped frame 774 to move downward. The L-shaped frame 774 drives the square rod 776 to move downward. During the downward movement of the square rod 776, the top of the lifting frame 777 is pressed down. The lifting frame 777 drives the flexible cleaning bar 779 to move further downward, thereby improving the fitting effect between the flexible cleaning bar 779 and the top of the circuit board 763, and improving the cleaning effect of the flexible cleaning bar 779 on impurities on the top of the circuit board 763.

[0056] When the sliding plate 755 moves toward the inside of the clamping shell 754, the airflow inside the clamping shell 754 enters into the inside of the air pipe 7712, and then enters into the inside of the L-shaped shell 775 through the air pipe 7712. The airflow enters into the inside of the curved pipe 7710 through the L-shaped shell 775, and then enters into the inside of the exhaust hopper 7711 through the curved pipe 7710. The airflow is discharged outward through the exhaust hopper 7711, thereby jet cleaning the impurities scraped off by the flexible cleaning strip 779, preventing the impurities from staying on the top of the circuit board 763, and improving the grinding effect of the rotating shaft 72 on the circuit board 763 from the side.

[0057] When the arc clamping frame 756 moves, the arc clamping frame 756 will first come into contact with one end of the sliding frame 762, causing the sliding frame 762 to move toward the inside of the bearing shell 761, and the two groups of sliding frames 762 will approach each other, and the sliding frame 762 drives the vertical plate 766 to move, and the vertical plate 766 drives the rotating plate 767 to move. Limited by the vertical rod 769, the rotating plate 767 drives the lifting plate 768 to move upward along the vertical rod 769, and the lifting plate 768 drives the manual telescopic rod 7610 to move upward, and the manual telescopic rod 7610 drives the bearing shell 761 to move upward, and the bearing shell 761 drives the circuit board 763 to move upward. During the upward movement of the circuit board 763, it can be further fitted with the bottom of the grinding roller 73 to prevent the circuit board 763 from becoming thinner during the grinding process. The distance between the circuit board 763 and the grinding roller 73 is increased, thereby improving the grinding effect of the grinding roller 73.

[0058] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A circuit board grinding structure for circuit board processing, characterized in that: The invention comprises a working shell (1), the top of the working shell (1) is fixedly connected to a protective frame (2), the top of the protective frame (2) is provided with a square hole (3), one side of the inner wall of the working shell (1) is fixedly connected to an electric telescopic rod (4), the movable end of the electric telescopic rod (4) is fixedly connected to a fixed block (5), the top outer wall of the fixed block (5) is slidably connected to the inner wall of the square hole (3), the top of the fixed block (5) is fixedly connected to a square shell (6), and further comprises: A stable grinding mechanism (7), the stable grinding mechanism (7) comprising a motor (71) fixedly connected to one side of the protective frame (2), the output end of the motor (71) being fixedly connected to a rotating shaft (72), one end of the rotating shaft (72) passing through the protective frame (2) and extending into the interior of the protective frame (2), a grinding roller (73) being fixedly connected to the outer wall of the rotating shaft (72), a screw rod (74) being fixedly connected to the outer walls of both ends of the rotating shaft (72), and a clamping assembly (75) being provided on the outer wall of the screw rod (74); The clamping assembly (75) comprises a threaded block (751) threadedly connected to the outer wall of the screw rod (74); the bottom of the threaded block (751) is fixedly connected to a square plate (752); both sides of the inner wall of the protective frame (2) are respectively fixedly connected to limit rods (753); one end of the limit rod (753) passes through the square plate (752) and extends to the outside of the square plate (752); the bottom of the square plate (752) is fixedly connected to a clamping shell (754); the inner wall of the clamping shell (754) is slidably connected to a sliding plate (755); one side of the sliding plate (755) is fixedly connected to an arc-shaped clamping frame (756); the side of the sliding plate (755) away from the arc-shaped clamping frame (756) is fixedly connected to a first spring (757); one end of the first spring (757) is fixedly connected to one side of the inner wall of the clamping shell (754); An extrusion assembly (76) is arranged on the top of the square shell (6), and the extrusion assembly (76) comprises a bearing shell (761) arranged in contact with the top of the square shell (6), both sides of the inner wall of the bearing shell (761) are slidably connected with sliding frames (762), one end of the sliding frame (762) passes through the bearing shell (761) and extends to the outside of the bearing shell (761), a circuit board (763) is arranged in contact with the top of the bearing shell (761), and both sides of the inner wall of the bearing shell (761) are provided with limiting holes (764); One end of the limiting hole (764) passes through the bearing shell (761) and extends to the inside of the square shell (6); a first return spring (765) is fixedly connected between the two sliding frames (762); vertical plates (766) are respectively fixedly connected to the two sides of the bottom of the sliding frame (762); an outer wall of one end of the vertical plate (766) is slidably connected to the inside of the limiting hole (764); and a rotating plate (767) is rotatably connected to one side of the bottom of the vertical plate (766); One end of the rotating plate (767) away from the vertical plate (766) is rotatably connected to a lifting plate (768); vertical rods (769) are respectively fixedly connected to the two sides of the bottom of the inner wall of the square shell (6); one end of the vertical rod (769) passes through the lifting plate (768) and extends to the outside of the lifting plate (768); the top of the lifting plate (768) is fixedly connected to a manual telescopic rod (7610); the movable end of the manual telescopic rod (7610) passes through the square shell (6) and extends to the outside of the square shell (6); the top of the manual telescopic rod (7610) is fixedly connected to the bottom of the bearing shell (761); A cleaning assembly (77) is provided on the side wall of the sliding plate (755), and the cleaning assembly (77) comprises a rotating bar (773) rotatably connected to both ends of a side of the sliding plate (755) close to the first spring (757), one end of the rotating bar (773) is rotatably connected to a slider (772), the inner wall of the slider (772) is slidably connected to a fixing rod (771), the bottom of the fixing rod (771) is fixedly connected to the bottom of the inner wall of the clamping shell (754), and the top of the slider (772) is fixedly connected to an L-shaped frame (774); The top of the clamping shell (754) is fixedly connected to an L-shaped shell (775), the bottom of one side of the L-shaped frame (774) is fixedly connected to a square rod (776), one end of the square rod (776) passes through the L-shaped shell (775) and extends to the inside of the L-shaped shell (775), the inner wall of the L-shaped shell (775) is slidably connected to a lifting frame (777), the bottom of the inner wall of the L-shaped shell (775) is fixedly connected to a second spring (778), the top of the second spring (778) is fixedly connected to one end of the lifting frame (777), and the bottom end of the lifting frame (777) passes through the L-shaped shell (775) and extends to the outside of the L-shaped shell (775); A flexible cleaning strip (779) is fixedly connected to the bottom of the lifting frame (777), and curved pipes (7710) are respectively connected to the two sides of the L-shaped shell (775), and one end of the curved pipe (7710) is connected to an exhaust hopper (7711), and one side of the exhaust hopper (7711) is fixedly connected to the side wall of the L-shaped shell (775), and the two ends of the top of the clamping shell (754) are respectively connected to air pipes (7712), and one end of the air pipe (7712) is connected to one side of the inner wall of the L-shaped shell (775); Auxiliary components (78) are provided on both sides of the grinding roller (73), and the auxiliary components (78) include second return springs (781) fixedly connected to both sides of the grinding roller (73), one end of the second return spring (781) is fixedly connected to a hexagonal block (782), and the inner wall of the hexagonal block (782) is arranged outside the screw rod (74).

2. A method for polishing a circuit board polishing structure for circuit board processing, using the circuit board polishing structure for circuit board processing as claimed in claim 1, characterized in that: The following steps are included: Step 1: placing the circuit board (763) on the top of the carrying shell (761), starting the electric telescopic rod (4), the electric telescopic rod (4) drives the fixed block (5) to move back and forth, and the fixed block (5) drives the square shell (6) to move; Step 2: the square shell (6) drives the carrying shell (761) to move, and the carrying shell (761) drives the circuit board (763) to move back and forth, and at the same time the motor (71) is started, and the motor (71) drives the rotating shaft (72) to rotate; Step 3: The rotating shaft (72) drives the grinding roller (73) to rotate, and the rotating shaft (72) drives the screw rod (74) to rotate. The screw rod (74) is limited by the limit rod (753). During the rotation of the screw rod (74), the screw block (751) and the square plate (752) are driven to move along the outer wall of the limit rod (753); Step 4: The square plate (752) drives the clamping shell (754) to move, the clamping shell (754) drives the sliding plate (755) to move, the sliding plate (755) drives the arc-shaped clamping frame (756) to move, and the two arc-shaped clamping frames (756) move closer to each other.

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