A high-efficiency double-blade high-speed cutting and grinding machine

Abstract

The invention discloses a high-efficiency double-blade high-speed cutting and grinding machine tool, comprising a frame and a motor seat slidably connected to the frame, a workbench is provided on the frame, two groups of pressing devices for pressing workpieces to be cut are installed on the workbench, the workbench is provided with strip holes, the two groups of pressing devices are respectively arranged on both sides of the strip holes, and sawing units for cutting and grinding CCL copper-clad substrates are installed on the two motor seats, the two groups of sawing units are staggered up and down, and the sawing paths are located on the same vertical plane, each group of pressing devices includes a plurality of pressing plates for pressing the workpieces to be cut and a plurality of lifting cylinders for driving the pressing plates to move up and down, and the two motor seats are respectively provided with a plurality of pressing plates for pressing the workpieces to be cut. The pressing plates are aligned and the spacing between the two pressing plates corresponds to the strip holes. Each pressing device can be controlled separately. The CCL copper clad substrate is pressed by a single pressing device. The sawing unit cuts the waste edge of the CCL copper clad substrate and polishes the cut surface of the CCL copper clad substrate to make it smooth, thereby effectively ensuring the quality of the CCL copper clad substrate and avoiding scratches on operators and equipment by burrs. The CCL copper clad substrate is pressed by two pressing devices together, and the sawing unit polishes the cut surfaces of the two CCL copper clad substrates after cutting to improve work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting after lamination of CCL copper clad substrates, in particular to a high-efficiency double-blade high-speed cutting and grinding machine tool. Background Art

[0002] Copper Clad Laminate (CCL) is a plate-like material made by impregnating electronic fiberglass cloth or other reinforcing materials with resin, covering one or both sides with copper foil and hot pressing. It is referred to as copper clad laminate. After lamination, traditional CCL uses upper and lower cutters to cut the edge of the board with cam transmission, which is easy to produce burrs and cracked edges, especially for thick boards. The problems of cracked edges, delamination and burrs are more serious. Burrs can easily cause scratches on the board surface or scratches on people's hands. The cracked edges cause abnormal quality of the circuit board. Especially in the field of carrier copper clad laminates, the quality requirements are relatively high.

[0003] The current Chinese patent document "CN118219328A, a PCB board cutting and grinding device" combines the upper knife and the lower knife that are staggered inside the grinding and cutting component, and cooperates with the pressure plate component to realize the grinding and cutting of the PCB board through a set of grinding and cutting components, thereby increasing the degree of intelligence. The upper pressure plate and the lower pressure plate are combined to facilitate the clamping and fixing of the thin plate to prevent it from moving, and move synchronously with the grinding and cutting component to avoid the board jamming phenomenon, thereby reducing the scrap rate. However, the PCB board is only pressed on one side by the upper pressure plate and the lower pressure plate. When the workpiece is cut, the other side of the workpiece is not fixed and pressed. Therefore, when cutting the PCB board, only the pressed PCB board can be cut and polished. When cutting a large PCB board, the PCB board that is not pressed needs to be re-polished, resulting in insufficient work efficiency. Summary of the invention

[0004] The object of the present invention is to provide a high-efficiency double-blade high-speed cutting and grinding machine tool to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A high-efficiency double-blade high-speed cutting and grinding machine tool, comprising a frame and a motor seat slidably connected to the frame, the frame is provided with a workbench, the workbench is provided with two groups of pressing devices for pressing the workpiece to be cut, the workbench is provided with strip holes, the two groups of pressing devices are respectively arranged on both sides of the strip holes, and the two motor seats are both provided with sawing units for cutting and grinding CCL copper-clad substrates, the two groups of sawing units are arranged in an upper and lower staggered manner, and the sawing paths are located on the same vertical plane, each group of pressing devices includes a plurality of pressing plates for pressing the workpiece to be cut and a plurality of lifting cylinders for driving the pressing plates to lift and lower, the two groups of pressing plates are arranged in an aligned manner, and the spacing between the two groups of pressing plates corresponds to the strip holes, and each group of pressing devices can be controlled separately;

[0007] The control system controls two groups of pressing devices to press and fix the position close to the cutting surface of the CCL copper clad substrate, and the CCL copper clad substrate is cut into two parts by the sawing unit. Alternatively, a single group of pressing devices can be used to press and fix the position close to the cutting surface of the CCL copper clad substrate, and the waste edge of the CCL copper clad substrate can be cut by the sawing unit. After cutting, the cutting surface of the CCL copper clad substrate is polished by the sawing unit.

[0008] Furthermore, each group of sawing units includes a circular saw blade for cutting workpieces, a transmission device for driving the circular saw blade to rotate, a lifting device for driving the circular saw blade to lift and lower, and a feeding device for driving the motor base to translate. One side of the frame is provided with a driving device for driving the two groups of feeding devices to move, and the driving device drives the two groups of feeding devices to move in the same direction. The circular saw blade has a plurality of saw teeth in a ring array, and some of the saw teeth are trapezoidal along the cross section parallel to the circular saw blade, and some of the saw teeth are triangular in shape along the cross section perpendicular to the circular saw blade.

[0009] Furthermore, the transmission device includes a driving motor installed on a motor seat, a main rotating gear is installed on the driving motor, a mounting plate is slidably connected to one side of the motor seat, a bearing seat is provided on the mounting plate, the bearing seat is connected to a blade fixing seat for mounting a circular saw blade, a side of the blade fixing seat away from the circular saw blade is connected to a secondary transmission gear, and the main transmission gear is connected to the secondary transmission gear via a transmission belt.

[0010] Furthermore, the lifting device includes a driving motor 2 and two screw seats which are vertically fixedly connected to one side of the motor seat, the output end of the driving motor 2 is connected to a planetary reducer 1, the output shaft of the planetary reducer 1 is provided with a main transmission gear 2, a screw is rotatably connected between the two screw seats, a nut seat threadedly connected to the screw is provided on one side of the mounting plate, a secondary transmission gear 2 is provided at the lower end of the screw through the lower screw seat, and the main transmission gear 2 and the secondary transmission gear 2 are connected by a transmission belt 2.

[0011] Furthermore, two first guide rails are fixedly connected to the motor base in parallel, and the two first guide rails are slidably connected to the mounting plate via a plurality of first sliding blocks.

[0012] Furthermore, the driving device includes a support frame arranged on one side of the frame, two bearing seats 2 are arranged under the support frame, a support shaft is arranged between the two bearing seats 2, a driving motor 3 is installed on the support frame, the output end of the driving motor 3 is connected to a planetary reducer 2, the output shaft of the planetary reducer 2 is fixedly connected to the support shaft through a coupling, and a main transmission gear 3 is arranged on the support shaft.

[0013] Furthermore, the feeding device includes a mounting frame arranged in the frame, and an auxiliary transmission gear three is correspondingly provided at one end of the mounting frame away from the main transmission gear three. The main transmission gear three and the auxiliary transmission gear three are connected through a transmission belt three. A plurality of clamping blocks are fixedly installed at the lower end of the motor seat, and a plurality of the clamping blocks are fixedly installed with clamping blocks that cooperate with the clamping transmission belt three.

[0014] Furthermore, second guide rails are symmetrically mounted on the mounting frame, and two of the second guide rails are slidably connected to the motor base via a plurality of second sliding blocks.

[0015] Furthermore, fixed covers are provided on the top and bottom of the frame, and both ends of the two fixed covers are rotatably connected to driven rollers, and the two driven rollers are connected by belt transmission. The belt cooperates with the fixed cover to form an inner cavity, and a dust suction connector 1 connected to the outside is provided on one side of the inner cavity, and the dust suction connector 1 is connected to the external vacuum cleaner through a dust suction pipe. The belt is provided with a base in a similar "L" shape, and a dust suction connector 2 is provided on the base, and the base is fixedly connected to the motor seat. An outer cover is installed on the outside of the two circular saw blades, and a dust suction connector 3 is provided at one end of the outer cover facing the dust suction connector 2, and the dust suction connector 2 is connected to the dust suction connector 3 through the external dust suction pipe, and an opening is provided at the end of the outer cover away from the dust suction connector 3.

[0016] Beneficial effects of the present invention:

[0017] The present invention adopts a single set of pressing devices to press the CCL copper clad substrate, and the sawing unit cuts the waste edge of the CCL copper clad substrate and polishes the cut surface of the CCL copper clad substrate to be smooth, thereby effectively ensuring the quality of the CCL copper clad substrate and avoiding scratches on operators and equipment by burrs. If a large piece of CCL copper clad substrate needs to be cut into two pieces, the two sets of pressing devices can be lifted and lowered together to press the CCL copper clad substrate, and the position close to the cut surface of the CCL copper clad substrate can be pressed and fixed. The sawing unit can cut the CCL copper clad substrate into two pieces, and also polishes the cut surfaces of the two CCL copper clad substrates after cutting, thereby improving work efficiency.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : The overall structure of the present invention Figure 1 .

[0020] Figure 2 : The overall structure of the present invention Figure 2 .

[0021] Figure 3 : Circular saw blade structure diagram of the present invention.

[0022] Figure 4 : The structural explosion diagram of the motor base, transmission device and lifting device of the present invention.

[0023] Figure 5 : Structural explosion diagram of the driving device and feeding device of the present invention.

[0024] Figure 6 : Exploded view of the fixed cover of the present invention.

[0025] Figure 7 : A cross-sectional view of a fixed cover of the present invention.

[0026] Figure numerals: 1, frame; 2, motor seat; 3, workbench; 4, pressing device; 5, transmission device; 6, lifting device; 7, driving device; 8, feeding device; 11, fixed cover; 12, driven roller; 13, belt; 14, inner cavity; 15, dust suction joint 1; 16, base; 17, dust suction joint 2; 18, outer cover; 19, dust suction joint 3; 21, mounting plate; 22, first guide rail; 23, first slider; 24, nut seat; 31, strip hole; 41, pressing plate; 42, lifting cylinder; 51, driving motor 1; 52, main transmission gear 1; 53, transmission belt 1; 54, auxiliary transmission gear Wheel one; 55, blade fixing seat; 56, circular saw blade; 57, bearing seat one; 61, drive motor two; 62, screw seat; 63, planetary reducer one; 64, main drive gear two; 65, transmission belt two; 66, auxiliary drive gear two; 67, screw; 71, support frame; 72, bearing seat two; 73, support shaft; 74, drive motor three; 75, planetary reducer two; 76, main drive gear three; 77, coupling; 81, mounting frame; 82, auxiliary drive gear three; 83, clamping block; 84, clamping block; 85, transmission belt three; 561, sawtooth; 811, second guide rail; 812, second slider. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Please refer to Figure 1-7 ;

[0029] The cutting and sawing machine tool of the present invention comprises a frame 1 and a motor base 2 slidably connected to the frame 1. A workbench 3 is provided on the frame 1. The workbench 3 is used to place a workpiece to be cut. A placing table is installed along the length direction of the workbench 3, which can place a CCL copper-clad substrate to be cut with a longer length. Two groups of pressing devices 4 for pressing the workpiece to be cut are installed on the workbench 3. The workbench 3 is provided with a strip hole 31. The two groups of pressing devices 4 are respectively arranged on both sides of the strip hole 31, and the two sides of the workpiece are pressed at the same time. The CCL copper-clad substrate will not shake during cutting, ensuring that it remains stable during the cutting process, preventing the workpiece from being displaced due to vibration or external force, and ensuring the cutting accuracy and the flatness of the cutting surface. Sawing units are installed on the two motor bases 2. The two groups of sawing units are staggered up and down, and the sawing paths are located on the same vertical plane, which can not only improve the cutting efficiency and reduce material waste, but also ensure the quality and aesthetics of the final product.

[0030] Each group of pressing devices 4 includes a plurality of pressing plates 41 for pressing the workpiece to be cut and a plurality of lifting cylinders 42 for driving the pressing plates 41 to move up and down. The two groups of pressing plates 41 are aligned. For example, the two groups of pressing devices 4 are provided with a total of 14 pressing plates 41, which are respectively arranged on both sides of the strip hole 31, and 7 pressing plates 41 are arranged on each side. The pressing plates 41 on both sides correspond to each other one by one to ensure the balance and coordination when the workpiece is pressed, and the spacing between the two groups of pressing plates 41 corresponds to the strip hole 31. The spacing between the two groups of corresponding pressing plates can be slightly larger than the width of the strip hole 31, or can be equal to the width of the strip hole 31, so as to limit the movement of the workpiece during cutting to the greatest extent and ensure the flatness of the cutting surface. Each group of pressing devices 4 can be controlled separately. Specifically, the two groups of pressing devices 4 can be controlled by the control system to lift and lower together to press the CCL copper clad substrate, or one of the groups of pressing devices 4 can be controlled by the control system to press the CCL copper clad substrate. If a single set of pressing devices 4 is used to press the CCL copper clad substrate, the sawing unit cuts the waste edge of the CCL copper clad substrate and polishes the cut surface of the CCL copper clad substrate to be smooth, thereby effectively ensuring the quality of the CCL copper clad substrate and avoiding scratches on operators and equipment by burrs, etc.; if a large piece of CCL copper clad substrate needs to be cut into two pieces, the two sets of pressing devices 4 can be lifted together to press the CCL copper clad substrate, and the position close to the cut surface of the CCL copper clad substrate can be pressed and fixed, and the sawing unit cuts the CCL copper clad substrate into two pieces, and also polishes the cut surfaces of the two CCL copper clad substrates after cutting, thereby improving work efficiency. The present invention can be used not only for cutting CCL copper clad substrates but also for cutting PCB boards.

[0031] In this embodiment, each group of sawing units includes a circular saw blade 56 for cutting a workpiece, a transmission device 5 for driving the circular saw blade 56 to rotate, a lifting device 6 for driving the circular saw blade 56 to lift and lower, and a feeding device 8 for driving the motor base 2 to translate. Preferably, the circular saw blade 56 is a diamond saw blade, and a driving device 7 for driving the two groups of feeding devices 8 to move is provided on one side of the frame 1. The driving device 7 drives the two groups of feeding devices 8 to move back and forth in the same direction. The circular saw blade 56 has a plurality of saw teeth 561 in an annular array, and the plurality of saw teeth 561 are trapezoidal along a cross section parallel to the circular saw blade 56. , it is not easy to chip the corners, and the service life of the saw teeth 561 is longer. Some saw teeth 561 are in a triangular shape along the cross section perpendicular to the circular saw blade 56, ensuring that the saw teeth 561 are sharp enough to quickly cut the workpiece and ensure that the cutting surface is smooth enough. When cutting the workpiece, the lowest point of the circular saw blade of the upper sawing unit passes over the lower surface of the CCL copper-clad substrate, and the highest point of the circular saw blade of the lower sawing unit passes over the upper surface of the CCL copper-clad substrate, so that the workpiece can be completely cut off, and the cutting surface is polished during cutting, so that the cutting surface of the CCL copper-clad substrate is polished into a smooth arc surface.

[0032] Before cutting, adjust the position of the circular saw blades 56 of the upper and lower sawing units to ensure that the two circular saw blades 56 are on the same vertical plane, then place the workpiece on the workbench 3, the pressing device 4 presses the workpiece, start the circular saw blade 56, and the two circular saw blades 56 cut the workpiece. The circular saw blade 56 cuts the workpiece in the following way: the upper sawing unit works with the lower sawing unit, the lower sawing unit is located in front of the upper sawing unit, the driving device 7 drives the feeding device 8 to move, the feeding device 8 drives the motor seat 2 to move, and the two lifting devices 6 respectively control the rise of the lower sawing unit and the fall of the upper sawing unit, and then the two sawing units start to move toward the workpiece for cutting. After the cutting is completed, the pressing device 4 rises to release the pressure on the workpiece, and then the operator replaces the workpiece, the pressing device 4 presses the newly replaced workpiece, and the upper cutting unit and the lower cutting unit continue to cut towards the replaced workpiece. The device cuts the CCL copper-clad substrate through reciprocating motion to improve work efficiency.

[0033] In addition, the driving device 7 can also be set to two, each used to control a sawing unit separately. For example, the upper sawing unit is on the left and the lower sawing unit is on the right. The upper sawing unit descends and moves toward the workpiece first to cut and grind the workpiece. After the upper sawing unit completes cutting and grinding, the lifting device 6 controls the lifting to avoid contact with the lower sawing unit. Then the lower sawing unit starts to rise and move toward the workpiece to start cutting and grinding the workpiece. Since the upper sawing unit has already cut and grind the workpiece, the feed speed of the lower sawing unit can be increased to cut the workpiece. After the lower sawing unit completes cutting, it descends, and the pressing device 4 rises to release the pressure on the workpiece. Then the operator replaces the workpiece, and the pressing device 4 presses the newly replaced workpiece, and the above-mentioned cutting operation on the workpiece is repeated back and forth.

[0034] In this embodiment, the transmission device 5 includes a driving motor 51 installed on the motor base 2. Preferably, the driving motor 51 adopts a servo motor to ensure stability and accuracy during the transmission process. A main rotating gear 1 is installed on the driving motor 51. A mounting plate 21 is slidably connected to one side of the motor base 2. A bearing seat 57 is provided on the mounting plate 21. The bearing seat 57 is connected to a blade fixing seat 55 for mounting a circular saw blade 56. A side of the blade fixing seat 55 away from the circular saw blade 56 is connected to a secondary transmission gear 54. The main transmission gear 52 and the secondary transmission gear 54 are connected by a transmission belt 53. Specifically, when the driving motor 2 61 is energized and started, it drives the main transmission gear 52 to rotate. Subsequently, the main transmission gear 52 transmits power to the secondary transmission gear 54 through the transmission belt 53, prompting the secondary transmission gear 54 to rotate. Finally, the rotation of the secondary transmission gear 54 drives the blade fixing seat 55 to rotate, thereby causing the circular saw blade 56 installed thereon to start to rotate at high speed.

[0035] In this embodiment, the lifting device 6 includes a drive motor 2 61 and two screw seats 62 which are vertically fixedly connected to one side of the motor seat 2. Preferably, the drive motor 2 61 is a servo motor, and the output end of the drive motor 2 61 is connected to a planetary reducer 1 63. The drive motor 2 61 and the planetary reducer 1 63 are connected by a flange. If the servo motor requires an extremely low speed and must continue to operate at full torque under special conditions, relying solely on the performance of the servo motor itself is not enough to meet the task requirements. By arranging a planetary reducer at the output end of the drive motor 2 61, the speed of the drive motor 2 61 can be effectively reduced while increasing the torque, thereby providing a power basis for subsequent gear transmission. The output shaft of the planetary reducer 1 63 is provided with a main transmission gear 2 64, which is rotatably connected to a screw between the two screw seats 62. 67, the screw rod 67 realizes stable rotation in the device through the screw rod seats 62 at both ends, the lower end of the screw rod 67 passes through the lower screw rod seat 62 and is provided with a secondary transmission gear 66, the main transmission gear 64 and the secondary transmission gear 66 are connected by a transmission belt 65, and a nut seat 24 threadedly connected to the screw rod 67 is provided on one side of the mounting plate 21, and the thread on the screw rod 67 forms a spiral transmission with the nut seat 24 on one side of the mounting plate 21 to realize the linear lifting movement of the mounting plate 21. Specifically, when the driving motor 61 is started, the screw rod 67 starts to rotate through the transmission of the planetary reducer 63 and the main transmission gear 64. Since the nut seat 24 is fixed on the mounting plate 21 to be lifted, the rotation of the screw rod 67 will be converted into a linear motion of the nut seat 24 and the mounting plate 21, thereby realizing the lifting function of the mounting plate 21.

[0036] In order to prevent the mounting plate 21 from shifting in position during lifting, two first guide rails 22 are fixedly connected in parallel to the motor base 2, and the two first guide rails 22 are slidably connected to the mounting plate 21 through multiple first sliders 23. Preferably, each guide rail is provided with two sliders fixedly connected to the mounting plate 21. Through the sliding cooperation between the multiple first sliders 23 and the first guide rails 22, it is ensured that the mounting plate 21 is always lifted and lowered along the trajectory of the first guide rails 22, thereby improving the overall lifting stability of the equipment and ensuring the cutting accuracy of the device.

[0037] In this embodiment, the driving device 7 includes a support frame 71 arranged on one side of the frame 1, and two bearing seats 2 72 are arranged under the support frame 71, and a support shaft 73 is rotatably connected between the two bearing seats 2 72, and a driving motor 3 74 is installed on the support frame 71. Preferably, the driving motor 3 74 adopts a servo motor, and the output end of the driving motor 3 74 is connected to the planetary reducer 2 75, and the driving motor 3 74 is connected to the planetary reducer 2 75 through a flange, and the output shaft of the planetary reducer 2 75 is fixedly connected to the support shaft 73 through a coupling 77, ensuring the smoothness and reliability of power transmission, and a main transmission gear 3 76 is arranged on the support shaft 73, and the support shaft 73 drives the main transmission gear 3 76 to rotate when it rotates, and a protective cover is provided on the outside of the driving device 7 to avoid accidentally touching the components on the driving device 7 during work, which affects the normal operation of the equipment.

[0038] Furthermore, the feeding device 8 includes a mounting frame 81 arranged in the frame 1, and a sub-transmission gear three 82 is correspondingly provided at one end of the mounting frame 81 away from the main transmission gear three 76. The main transmission gear three 76 and the sub-transmission gear three 82 are connected to each other through a transmission belt three 85. A plurality of clamping blocks 83 are fixedly installed at the lower end of the motor base 2, and a plurality of clamping blocks 83 are fixedly installed with pressure blocks 84 that cooperate with the pressure blocks to clamp the transmission belt three 85. When the main transmission gear three 76 rotates, the main transmission gear three 76 drives the sub-transmission gear three 82 to rotate through the transmission belt three 85. Since the clamping blocks 83 and the pressure blocks 84 at the lower end of the motor base 2 clamp the transmission belt three 85, the transmission belt three 85 can drive the motor base 2 to move during transmission, so that the circular saw blade 56 can move and cut the workpiece.

[0039] In order to prevent the motor base 2 from shifting during movement, second guide rails 811 are symmetrically installed on the mounting frame 81. The two second guide rails 811 are slidably connected to the motor base 2 by setting a plurality of second sliders 812. Preferably, there are four second sliders 812, two on each side, which are respectively fixedly connected to the bottom of the motor base 2. Through the sliding cooperation between the plurality of second sliders 812 and the second guide rails 811, it is ensured that the motor base 2 always translates along the trajectory of the second guide rails 811, thereby improving the stability of the movement of the motor base 2.

[0040] The two driven rollers 12 are connected by belts 13. The belts 13 cooperate with the fixed covers 11 to form an inner cavity 14 for storing cutting debris. An opening is provided at one end of the fixed cover 11. When the belt 13 is severely worn, it is convenient to remove and replace the belt 13. The two sides of the opening of the fixed cover 11 are recessed inward and abut against the belt 13 to prevent the cutting debris from leaking out. A dust suction connector 15 connected to the outside is provided on one side of the inner cavity 14. The dust suction connector 15 is connected to an external dust collector through a dust suction pipe. The dust collector can be a negative pressure vacuum pump, a dust suction pump, a vacuum air pump, etc. An "L"-shaped base 16 is provided on the belt 13. A dust suction connector 2 17 is provided on the base 16. The dust suction connector 2 17 is connected to the inside of the inner cavity 14. The base 16 is fixedly connected to the motor base 2. The two circular saws An outer cover 18 is installed outside the knife 56. The outer cover 18 is in a cubic shape and is sleeved on the outer periphery of the circular saw blade 56, exposing only the part used for cutting the workpiece to avoid accidents caused by accidentally touching the circular saw blade 56, thereby improving the safety of equipment use. A dust suction connector 3 19 is provided at one end of the outer cover 18 facing the dust suction interface 2, which can drive the belt 13 to move when the motor base 2 moves, so that the dust suction connector 2 17 moves with the motor base 2, and there is no need to use a longer dust suction pipe to connect the dust suction connector 2 17 and the dust suction connector 3 19. An opening is provided at one end of the outer cover 18 away from the dust suction connector 3 19, and the opening is used to absorb the debris after the workpiece is cut. Specifically, the vacuum cleaner is turned on, and the vacuum cleaner absorbs the debris cut out of the workpiece, and the debris is extracted through the dust suction connector 3 19, the dust suction connector 2 17, the inner cavity 14, and the dust suction connector 1 15 in turn. In order to prevent the debris and dust after the extraction from being scattered everywhere, a dust collecting bag for collecting the debris is set on the extraction port of the vacuum cleaner.

[0041] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. An efficient double-blade high-speed cutting and grinding machine tool, comprising a frame (1) and a motor base (2) slidably connected to the frame (1), the frame (1) being provided with a workbench (3), the workbench (3) being provided with two sets of pressing devices (4) for pressing workpieces to be cut, the workbench (3) being provided with strip holes (31), the two sets of pressing devices (4) being respectively arranged on both sides of the strip holes (31), the two motor bases (2) being provided with sawing units for cutting and grinding CCL copper-clad substrates, the two sets of sawing units being arranged in an upper and lower staggered manner, and the sawing paths being located on the same vertical plane, characterized in that: Each group of pressing devices (4) comprises a plurality of pressing plates (41) for pressing the workpiece to be cut and a plurality of lifting cylinders (42) for driving the pressing plates (41) to move upward and downward. The two groups of pressing plates (41) are arranged in alignment, and the spacing between the two groups of pressing plates (41) corresponds to the strip holes (31). Each group of pressing devices (4) can be controlled individually. The control system controls two sets of material pressing devices (4) to press and fix the position close to the cutting surface of the CCL copper-clad substrate, and the sawing unit cuts the CCL copper-clad substrate into two parts. Alternatively, the control system controls two sets of material pressing devices (4) to press and fix the position close to the cutting surface of the CCL copper-clad substrate, and the sawing unit cuts the waste edge of the CCL copper-clad substrate. After cutting, the sawing unit grinds the cutting surface of the CCL copper-clad substrate. Each group of sawing units comprises a circular saw blade (56) for cutting a workpiece, a transmission device (5) for driving the circular saw blade (56) to rotate, a lifting device (6) for driving the circular saw blade (56) to rise and fall, and a feeding device (8) for driving the motor base (2) to translate. A driving device (7) for driving the two groups of feeding devices (8) to move is provided on one side of the frame (1). The driving device (7) drives the two groups of feeding devices (8) to move in the same direction. The circular saw blade (56) has a plurality of saw teeth (561) in an annular array. A plurality of the saw teeth (561) are trapezoidal along a cross section parallel to the circular saw blade (56), and a plurality of the saw teeth (561) are triangular in shape along a cross section perpendicular to the circular saw blade (56).

2. The high-efficiency double-blade high-speed cutting and grinding machine tool according to claim 1, characterized in that: The transmission device (5) comprises a driving motor (51) mounted on a motor base (2), a main transmission gear (52) being mounted on the driving motor (51), a mounting plate (21) being slidably connected to one side of the motor base (2), a bearing seat (57) being provided on the mounting plate (21), a blade disc fixing seat (55) for mounting a circular saw blade (56) being connected to the bearing seat (57), a side of the blade disc fixing seat (55) away from the circular saw blade (56) being connected to a secondary transmission gear (54), and the main transmission gear (52) and the secondary transmission gear (54) being connected via a transmission belt (53).

3. The high-efficiency double-blade high-speed cutting and grinding machine tool according to claim 2, characterized in that: The lifting device (6) comprises a second drive motor (61) and two screw seats (62) which are arranged on one side of the motor seat (2) and are vertically fixedly connected. The output end of the second drive motor (61) is connected to a first planetary reducer (63). The output shaft of the first planetary reducer (63) is provided with a second main transmission gear (64). A screw (67) is rotatably connected between the two screw seats (62). A nut seat (24) threadedly connected to the screw (67) is provided on one side of the mounting plate (21). The lower end of the screw (67) passes through the lower screw seat (62) and is provided with a second auxiliary transmission gear (66). The second main transmission gear (64) and the second auxiliary transmission gear (66) are connected via a second transmission belt (65).

4. The high-efficiency double-blade high-speed cutting and grinding machine tool according to claim 3, characterized in that: Two first guide rails (22) are fixedly connected to the motor seat (2) in parallel, and the two first guide rails (22) are slidably connected to the mounting plate (21) via a plurality of first sliding blocks (23).

5. The high-efficiency double-blade high-speed cutting and grinding machine tool according to claim 1, characterized in that: The driving device (7) comprises a support frame (71) arranged on one side of the frame (1), two bearing seats (72) are arranged below the support frame (71), a support shaft (73) is arranged between the two bearing seats (72), a driving motor (74) is installed on the support frame (71), the output end of the driving motor (74) is connected to a planetary reducer (75), the output shaft of the planetary reducer (75) is fixedly connected to the support shaft (73) through a coupling (77), and a main transmission gear (76) is arranged on the support shaft (73).

6. The high-efficiency double-blade high-speed cutting and grinding machine tool according to claim 5, characterized in that: The feeding device (8) comprises a mounting frame (81) arranged in the frame (1); an end of the mounting frame (81) away from the main transmission gear (76) is provided with a secondary transmission gear (82); the main transmission gear (76) and the secondary transmission gear (82) are connected to each other through a transmission belt (85); a plurality of clamping blocks (83) are fixedly mounted on the lower end of the motor seat (2); and a plurality of clamping blocks (84) are fixedly mounted on the clamping blocks (83) for cooperating with the clamping blocks to clamp the transmission belt (85).

7. The high-efficiency double-blade high-speed cutting and grinding machine tool according to claim 6, characterized in that: Second guide rails (811) are symmetrically mounted on the mounting frame (81), and two of the second guide rails (811) are slidably connected to the motor base (2) via a plurality of second sliding blocks (812).

8. The high-efficiency double-blade high-speed cutting and grinding machine tool according to claim 1, characterized in that: The frame (1) is provided with a fixed cover (11) at the top and bottom, and both ends of the two fixed covers (11) are rotatably connected to driven rollers (12). The two driven rollers (12) are connected by a belt (13). The belt (13) cooperates with the fixed cover (11) to form an inner cavity (14). One side of the inner cavity (14) is provided with a dust suction connector (15) connected to the outside. The dust suction connector (15) is connected to an external dust collector through a dust suction pipe. The belt (13) is provided with a A base (16) similar to an "L" shape is provided on the base (16), and a second dust suction connector (17) is provided on the base (16). The base (16) is fixedly connected to the motor base (2). An outer cover (18) is installed outside the two circular saw blades (56). A third dust suction connector (19) is provided at one end of the outer cover (18) facing the second dust suction connector (17). The second dust suction connector (17) is connected to the third dust suction connector (19) through an external dust suction pipe. An opening is provided at one end of the outer cover (18) away from the third dust suction connector (19).

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