Plate feeding and pressing device for DBC copper-clad plate production

Abstract

The invention discloses an upper plate pressing device for DBC copper-clad plate production, and relates to the technical field of DBC copper-clad plate production, the upper plate pressing device comprises a bottom plate, fixing rods are fixedly connected to the periphery of the top of the bottom plate, a top plate is fixedly connected to the tops of the fixing rods, a movable plate is slidably connected to the fixing rods, and a pressing plate matched with a lower mold is arranged at the bottom of the movable plate; the periphery of the bottom of the fixing rod is provided with downward pressing assemblies used for driving the movable plate and the pressing plate to move downwards to press the copper-clad plate in the lower mold, and the top of the movable plate is provided with a knocking assembly. According to the upper plate pressing device for DBC copper-clad plate production, the sliding plate and the pressing rod are pushed to intermittently move and press downwards through vertical movement of the poke rod, it is ensured that the copper-clad plate is subjected to uniform and stable pressure in the pressing process through the intermittent step-by-step pressure applying mode, bubbles and gaps generated in the pressing process can be reduced, and therefore the production efficiency of the copper-clad plate is improved. Therefore, the pressing quality and the product reliability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of DBC copper clad laminate production, in particular to an upper plate pressing device for DBC copper clad laminate production. Background Art

[0002] In the production process of DBC copper clad laminates, upper plate pressing is a crucial link. Most of the existing upper plate pressing devices for DBC copper clad laminate production adopt traditional mechanical pressing methods, which drive the pressing plate to press the copper clad laminate in the lower mold through a hydraulic or pneumatic system. However, these existing technologies have exposed some obvious defects in practical applications: First of all, the pressing devices in the prior art are often unable to achieve precise pressing control. Due to the limited response speed and accuracy of the hydraulic or pneumatic system, the movement trajectory of the pressing plate during the pressing process is not stable enough, and it is difficult to ensure that uniform and stable pressure is applied to the copper clad laminate. This will not only affect the pressing quality, but may also cause the copper clad laminate to have problems such as warping at the four corners during the pressing process, thereby affecting the reliability and service life of the product. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a top plate pressing device for producing DBC copper clad laminates, which solves the technical problems mentioned in the background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an upper plate pressing device for DBC copper clad laminate production, comprising a bottom plate, fixed rods are fixedly connected to the top of the bottom plate, a top plate is fixedly connected to the top of the fixed rod, a movable plate is slidably connected to the fixed rod, a first damping spring sleeved on the fixed rod is arranged around the bottom of the movable plate, a pressing plate adapted to the lower mold is arranged at the bottom of the movable plate, a pressing assembly for driving the movable plate and the pressing plate to move downward to press the copper clad laminate in the lower mold is arranged around the bottom of the fixed rod, and a knocking assembly for knocking the four corners of the movable plate to solve the warping problem of the four corners of the copper clad laminate production is arranged on the top of the movable plate; The cam is provided with a plurality of movable members, each of which has a plurality of movable members, each of which has a plurality of movable members, and a plurality of movable members are connected to the movable member by a plurality of movable members.

[0005] As a further preferred embodiment of the present technical solution, the reciprocating member includes a positioning rod fixedly installed on the inner end of each group of sliders, connecting plates are arranged on both sides of the two positioning rods, a V-shaped frame installed on the positioning rods is arranged on the outer side of the connecting plate, a first transmission rod and a second transmission rod are respectively arranged on both sides of the V-shaped frame, and a driving member is arranged on one side of the lower positioning rod.

[0006] As a further preferred embodiment of the present technical solution, the driving member includes a servo motor fixedly mounted on a fixed plate, the output end of the servo motor is fixedly connected to a rotating rod, the other side of the rotating rod is rotatably connected to a linkage shaft, both sides of the linkage shaft are rotatably connected to push rods, and the other side of the push rod is connected to a V-shaped frame.

[0007] As a further preferred embodiment of the present technical solution, the V-shaped frame includes a first support rod and a second support rod, the first support rod and the second support rod are fixedly connected, the outer ends of the first support rod and the second support rod are respectively provided with a first connecting rod and a second connecting rod, and the second transmission rod is rotatably installed on the first connecting rod, and the first transmission rod is rotatably provided on the second connecting rod.

[0008] As a further preferred embodiment of the present technical solution, the knocking assembly includes a driving motor fixedly mounted on the top plate, the output end of the driving motor is fixedly connected to a telescopic rod, the bottom end of the telescopic rod is rotatably connected to a fixed plate fixedly mounted on the top of the movable plate through a support rod, the telescopic rod is fixedly connected to a cylinder, the four sides of the fixed plate are slidably connected to a sliding rod in a vertical direction, and the cylinder drives the sliding rod to move up and down, a knocking block for knocking the four sides of the moving plate is fixedly connected to the bottom of the sliding rod, a positioning sleeve fixedly mounted on the bottom of the fixed plate is slidably connected to the sliding rod, and a fourth damping spring mounted on the sliding rod is arranged between the positioning sleeve and the knocking block.

[0009] As a further preferred embodiment of the present technical solution, an outer end of the cylinder is provided with arc grooves in a circumferential array, and a guide column slidably installed in the arc groove is provided on the side wall of the upper end of the sliding rod.

[0010] As a further preferred embodiment of the present technical solution, the telescopic rod includes a sleeve rod and a spline rod, the sleeve rod is fixedly connected to the output end of the driving motor, the spline rod and the sleeve rod are slidingly connected in the vertical direction, the bottom of the spline rod is rotationally connected to the fixed plate through a bearing, and the cylinder is fixedly mounted on the spline rod.

[0011] As a further optimization of the present technical solution, an active gear ring is fixedly connected to the bottom of the cylinder, and a pinion is meshedly connected to the active gear ring around it, and the pinion is rotatably installed on the fixed plate through a rotating shaft, and a support plate is fixedly connected to the bottom of the fixed plate around it, and a transmission shaft is rotatably connected to the support plate, and the support plate is rotatably connected to a rotating rod through a positioning shaft, and both ends of the transmission shaft are respectively connected to the rotating shaft and the positioning shaft through a bevel gear set, and the other end of the rotating rod is rotatably connected to a movable rod, and the other end of the movable rod is rotatably connected to a moving block, and the moving block is located at the outer end of the lower mold, and a row of knocking rods is provided at the inner end of the moving block, and the knocking rods are laterally slidably installed on the moving block, and a fifth damping spring is provided between the knocking rod and the moving block.

[0012] As a further preferred embodiment of the present technical solution, vertical plates are fixedly connected around the movable plate, a reciprocating groove is provided on the surface of the vertical plate, two groups of guide rods are slidably connected in the reciprocating groove, and one end of the two groups of guide rods is fixedly connected to the movable block. Compared with the prior art, it has the following beneficial effects: The precise reciprocating movement and swinging of the push rod are achieved through the design of the servo motor, rotating rod, linkage shaft, push rod, inclined plate, slider and slide groove. This design ensures the accuracy of the motion trajectory and improves the stability and accuracy of the entire system; the up and down movement of the toggle rod drives the slide plate and the pressing rod to move and press intermittently. This intermittent and gradual pressure application method ensures that the copper clad laminate is subjected to uniform and stable pressure during the pressing process, which helps to reduce the bubbles and gaps generated during the pressing process, thereby improving the pressing quality and product reliability; compared with continuous high-intensity pressure, intermittent pressure can reduce Damage to materials and equipment. During the pressing process, continuous high-intensity pressure may cause material deformation, cracking or equipment wear, while intermittent application of pressure can reduce this risk and extend the service life of materials and equipment. The coordinated design of the trapezoidal block, the moving rod and the third damping spring enables the slide plate to stably push the trapezoidal block to move during the movement, and after the slide plate slides over, the trapezoidal block can be reset under the elastic force of the third damping spring to prepare for the next push. At the same time, the elastic force of the second damping spring ensures the fit contact between the slide plate and the side wall of the trapezoidal block, further improving the stability and accuracy of the system.

[0013] Through the mechanical movement of the pressing assembly, the movable plate, the pressure plate, the fixed plate and other related components can be synchronously lowered to apply uniform and stable pressure to the copper-clad laminate in the lower mold to complete high-quality pressing. At the same time, the knocking action of the knocking block on the top of the movable plate effectively prevents the problem of the copper-clad laminate being lifted up at the four corners during the pressing process, further improving the pressing quality. The rotation of the cylinder not only drives the up and down reciprocating movement of the knocking block, but also realizes the knocking treatment of the outer wall of the lower mold by the knocking rod through the cooperation of the gear transmission and the bevel gear set. This composite reciprocating movement is helpful for the subsequent demolding of the copper-clad laminate in the lower mold, reduces the resistance and damage during the demolding process, and improves the demolding efficiency and product quality. The reciprocating up and down movement of the sliding rod and the knocking block is realized by designing components such as arc grooves, guide columns and the fourth damping spring. This design not only makes the knocking action more stable and reliable, but also ensures the stability and durability of the system through the elastic force of the damping spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the lower mold, the movable plate, the pressing plate, the lower pressing assembly and the knocking assembly in the present invention; Figure 3 It is a structural schematic diagram of the downward pressing component in the present invention; Figure 4 It is a structural schematic diagram of the reciprocating member, the sliding plate, the pressing rod and the trapezoidal block in the present invention; Figure 5 It is a schematic diagram of the structure of the reciprocating member in the present invention; Figure 6 It is a schematic diagram of the structure of the knocking component in the present invention; Figure 7 It is a schematic diagram of the structure of the telescopic rod, the cylinder, the guide column, the sliding rod and the knocking block in the present invention; Figure 8 It is a schematic diagram of the structure of the moving block, the knocking rod and the vertical plate in the present invention.

[0015] In the figure: 1, bottom plate; 2, fixed rod; 3, top plate; 4, lower mold; 5, moving plate; 6, pressure plate; 7, pressing assembly; 8, knocking assembly; 21, first damping spring; 71, fixed plate; 72, tilting plate; 73, slider; 74, positioning rod; 75, connecting plate; 76, V-shaped frame; 761, first support rod; 762, second support rod; 77, first connecting rod; 78, second connecting rod; 79, first transmission rod; 710, second transmission rod; 711, toggle rod; 712, U-shaped frame; 713, slide rod; 714, slide plate; 715, pressing rod; 716, second damping spring; 717, moving rod; 718, trapezoidal block; 719, third damping spring; 720, Servo motor; 721, rotating rod; 722, linkage shaft; 723, pushing rod; 81, driving motor; 82, telescopic rod; 8201, sleeve rod; 8202, spline rod; 83, fixed plate; 84, cylinder; 85, arc groove; 86, sliding rod; 87, guide column; 88, knocking block; 89, positioning sleeve; 810, fourth damping spring; 811, active ring gear; 812, pinion; 813, support plate; 814, transmission shaft; 815, positioning shaft; 816, bevel gear set; 817, rotating rod; 818, movable rod; 819, moving block; 820, vertical plate; 821, reciprocating groove; 822, guide rod; 823, knocking rod; 824, fifth damping spring. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings of the specification. 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 making creative work are within the scope of protection of the present invention.

[0017] Embodiment 1: Combination Figure 1-Figure 8 As shown, the present invention provides a technical solution: a top plate pressing device for DBC copper clad laminate production, comprising a bottom plate 1, the top of the bottom plate 1 is fixedly connected with fixed rods 2, the tops of these fixed rods 2 are fixedly connected with a top plate 3, and a moving plate 5 is slidably connected to the upper ends of the fixed rods 2. The bottom of the moving plate 5 is provided with first damping springs 21 sleeved on the fixed rods 2 to ensure the stability and shock absorption effect of the moving plate 5 when sliding. The bottom of the moving plate 5 is also provided with a pressing plate 6 that is adapted to the lower mold 4 and is used for pressing the copper clad laminate in the lower mold 4 during the production process; The bottom of the fixed rod 2 is provided with a pressing assembly 7 for driving the movable plate 5 and the pressing plate 6 to move downward to press the copper clad laminate in the lower mold 4. In addition, a knocking assembly 8 is provided on the top of the movable plate 5 to knock the four corners of the movable plate 5 to solve the problem of warping of the four corners that may occur during the production process of the copper clad laminate. The pressing assembly 7 includes a fixed plate 71 fixedly mounted on the bottom of the top plate 3, two sets of inclined plates 72 are arranged at the inner ends of the fixed plate 71, each set of inclined plates 72 is provided with a groove, a slider 73 is slidably connected in the groove, a reciprocating member is arranged at the inner end of each set of corresponding sliders 73, a second transmission rod 710 is arranged at the inner end of the reciprocating member, a row of toggle rods 711 are arranged in the vertical direction at the inner end of the second transmission rod 710, and the reciprocating member can drive the second transmission rod 710 and the toggle rod 711 to reciprocate up and down, so that the second transmission rod 710 can push the sliding plate 714 to reciprocate; The two sides of the fixed plate 71 are fixedly connected with U-shaped frames 712, and the inner wall of the U-shaped frame 712 is fixedly connected with a sliding rod 713, and a sliding plate 714 is slidably connected to the sliding rod 713, and the positions of the sliding plate 714 and the toggle rod 711 correspond to each other. When the sliding plate 714 moves downward, it can slide downward along the inclined surface of the trapezoidal block 718. A row of pressing rods 715 for pushing the moving plate 5 to move downward is arranged at the bottom of the sliding plate 714. A second damping spring 716 sleeved on the sliding rod 713 is also arranged at the bottom of the sliding plate 714 to slow down the descending speed of the sliding plate 714 and ensure a smooth pressing process. A row of moving rods 717 are slidably disposed on the U-shaped frame 712, and the inner ends of the moving rods 717 are fixedly connected with trapezoidal blocks 718 corresponding to the sliding plates 714, and the outer ends of the trapezoidal blocks 718 are provided with third damping springs 719 sleeved on the moving rods 717 to further reduce shock and stabilize the movement of the moving rods 717; The reciprocating member includes a positioning rod 74 fixedly mounted on the inner end of each group of sliders 73, a connecting plate 75 is provided on both sides of the two positioning rods 74, a V-shaped frame 76 mounted on the positioning rod 74 is provided on the outer side of the connecting plate 75, a first transmission rod 79 and a second transmission rod 710 are respectively provided on both sides of the V-shaped frame 76, and a driving member is provided on one side of the lower positioning rod 74; The driving member includes a servo motor 720 fixedly mounted on the fixed plate 71, the output end of the servo motor 720 is fixedly connected to a rotating rod 721, the other side of the rotating rod 721 is rotatably connected to a linkage shaft 722, both sides of the linkage shaft 722 are rotatably connected to push rods 723, and the other side of the push rod 723 is connected to a V-shaped frame 76; The V-shaped frame 76 includes a first support rod 761 and a second support rod 762, and the first support rod 761 and the second support rod 762 are fixedly connected. The outer ends of the first support rod 761 and the second support rod 762 are respectively provided with a first connecting rod 77 and a second connecting rod 78. The second transmission rod 710 is rotatably installed on the first connecting rod 77, and the second connecting rod 78 is rotatably provided with a first transmission rod 79. Through this structural design, precise control of the movable plate 5 and the pressure plate 6 can be achieved to ensure the production quality of the copper clad laminate.

[0018] In the embodiment of the present invention, by starting the servo motor 720, the rotating rod 721 can be driven to rotate synchronously. During the rotation process, the rotating rod 721 drives the push rod 723 to move back and forth through the cooperation with the linkage shaft 722. This continuous action is transmitted to the push rod 723 through the rotating rod 721 and the linkage shaft 722, so that it can achieve reciprocating movement and swing. At the same time, the design of the inclined plate 72, the slider 73 and the slide groove provides precise guidance for the movement of the push rod 723 to ensure that its motion trajectory is accurate. With the movement of the push rod 723, the positioning rod 74, the first transmission rod 79, the second transmission rod 710, the first connecting rod 77, and the second connecting rod 78 also begin to play a role, driving the V-shaped frame 76 to swing back and forth during the reciprocating movement. This swinging action further drives the second transmission rod 710 and the toggle rod 711 to move up and down to one side. The up and down movement of the toggle rod 711 is the key to push the slide plate 714 and the pressing rod 715 to move and press intermittently. When the toggle rod 711 moves upward, it pushes the slide plate 714 to slide downward on the slide rod 713. The moving range of the slide plate 714 is set to move from one trapezoidal block 718 to another trapezoidal block 718. This design enables the slide plate 714 and the pressing rod 715 to move and press intermittently according to a predetermined trajectory, thereby realizing the pressing and pressing of the movable plate 5, the pressing plate 6 and the copper-clad laminate in the lower mold 4. By applying pressure intermittently and gradually, it can be ensured that the copper-clad laminate is subjected to uniform and stable pressure during the pressing process. This pressure distribution method helps to reduce bubbles and gaps generated during the pressing process, improve the pressing quality and product reliability, and compared with continuous high-intensity pressure, intermittent pressure can reduce damage to materials and equipment. During the pressing process, continuous high-intensity pressure may cause material deformation, cracking or equipment wear, while intermittent pressure can reduce such risks and extend the service life of materials and equipment. During the downward pressing process, when the sliding plate 714 moves, the end of the sliding plate 714 contacts the inclined surface of the trapezoidal block 718 and pushes it to move. The trapezoidal block 718 slides on the U-shaped frame 712 under the guidance of the moving rod 717 and compresses the third damping spring 719. After the sliding plate 714 slides over the inclined surface of one trapezoidal block 718, the trapezoidal block 718 is reset under the elastic force of the third damping spring 719, preparing for the next push. At the same time, when the sliding plate 714 moves to the next trapezoidal block 718 position, under the elastic force of the second damping spring 716, the top of the sliding plate 714 is in contact with the side wall of the trapezoidal block 718, ensuring the stability and accuracy of the entire system. Embodiment 2: Combination Figure 6 , Figure 7 , Figure 8 As shown, on the basis of the first embodiment, in the present invention, the design of the knocking assembly 8 includes a driving motor 81 fixedly mounted on the top plate 3, the output end of the driving motor 81 is fixedly connected to a telescopic rod 82, the bottom end of the telescopic rod 82 is connected to a fixed plate 83 by a rotational connection, the fixed plate 83 is fixedly mounted on the top of the moving plate 5 through a supporting rod, and a cylinder 84 is also fixedly connected to the telescopic rod 82, the surrounding of the fixed plate 83 is slidably connected to a sliding rod 86 in the vertical direction, and the cylinder 84 is responsible for driving the sliding rod 86 to move up and down, and the bottom of the sliding rod 86 is fixedly connected to a knocking block 88 for knocking the surrounding of the top of the moving plate 5, in addition, the sliding rod 86 is slidably connected to a positioning sleeve 89 fixedly mounted on the bottom of the fixed plate 83, and a fourth damping spring 810 sleeved on the sliding rod 86 is arranged between the positioning sleeve 89 and the knocking block 88 to provide appropriate resistance and buffering; The outer end of the cylinder 84 is provided with a plurality of arc grooves 85 in a circumferential array, and the upper end side wall of the slide rod 86 is provided with a guide column 87 slidably installed in the arc groove 85. When the cylinder 84 is driven by the driving motor 81 to rotate, it will cooperate with the guide column 87 to drive the slide rod 86 and the knocking block 88 to move upward under the action of the arc groove 85, and compress the fourth damping spring 810. When the guide column 87 moves from one arc groove 85 to another arc groove 85, the slide rod 86 and the knocking block 88 move downward under the elastic force of the fourth damping spring 810, so that the knocking block 88 knocks around the top of the moving plate 5. This knocking treatment helps to prevent the four corners of the copper clad plate from warping and ensure its flatness. The design of the telescopic rod 82 includes a sleeve rod 8201 and a spline rod 8202. The sleeve rod 8201 is fixedly connected to the output end of the driving motor 81, and the spline rod 8202 is slidably connected to the sleeve rod 8201 in the vertical direction. The bottom of the spline rod 8202 is rotatably connected to the fixed plate 83 through a bearing to ensure its flexible movement. The cylinder 84 is fixedly installed on the spline rod 8202 to achieve precise control and drive. An active gear ring 811 is fixedly connected to the bottom of the cylinder 84, and a plurality of pinion gears 812 are meshed and connected around the active gear ring 811. These pinion gears 812 are rotatably mounted on the fixed plate 83 through a rotating shaft. A support plate 813 is fixedly connected to the bottom of the fixed plate 83 around the periphery, and a transmission shaft 814 is rotatably connected to the support plate 813. The support plate 813 is rotatably connected to a rotating rod 817 through a positioning shaft 815. Both ends of the transmission shaft 814 are respectively connected to the rotating shaft and the positioning shaft 815 through a bevel gear set 816 to ensure smooth and efficient power transmission. The other end of the rotating rod 817 is rotatably connected to a movable rod 818, and the other end of the movable rod 818 is rotatably connected to a moving block 819. The moving block 819 is located at the outer end of the lower mold 4, and a row of knocking rods 823 are arranged at its inner end. The knocking rods 823 are slidably mounted on the moving block 819 laterally, and a fifth damping spring 824 is arranged between the knocking rod 823 and the moving block 819 to provide additional buffering and resistance. The movable plate 5 is fixedly connected with vertical plates 820 on all sides, and a reciprocating groove 821 is provided on the surface of the vertical plate 820. Two groups of guide rods 822 are slidably connected in the reciprocating groove 821. One end of the two groups of guide rods 822 is fixedly connected to the movable block 819 to ensure that the movable block 819 maintains a stable and precise positioning during the movement.

[0019] In the embodiment of the present invention, in the current pressing process, when the pressing assembly 7 drives the movable plate 5 and the pressing plate 6 to move downward through its mechanical movement, this action will apply pressure to the copper-clad laminate in the lower mold 4 to complete the pressing process. In this process, the movable plate 5 not only moves downward itself, but also drives the fixed plate 83, the spline rod 8202, the cylinder 84 and the vertical plate 820 to move downward together. As these components descend synchronously, the vertical plate 820 and the knocking rod 823 will move to the outer end of the lower mold 4; In order to realize this series of complex mechanical actions, the driving motor 81 is started. The driving motor 81 drives the sleeve rod 8201 and the spline rod 8202 to rotate synchronously through its power output. During the rotation process, the spline rod 8202 drives the cylinder 84 to rotate synchronously. During the rotation process, the cylinder 84, because of the arc groove 85 designed on its surface, can drive the slide rod 86 and the knocking block 88 to move upward under the action of the arc groove 85 and the guide column 87. This upward action causes the fourth damping spring 810 to be compressed. When the guide post 87 moves from one arc groove 85 to another arc groove 85, the sliding rod 86 and the knocking block 88 will move downward under the elastic force of the fourth damping spring 810. This reciprocating up and down movement enables the knocking block 88 to effectively knock around the top of the moving plate 5. This knocking action helps prevent the four corners of the copper clad laminate from tilting during the pressing process, thereby ensuring the pressing quality. At the same time, the cylinder 84 also drives the active gear ring 811 to rotate during the rotation process. The rotation of the active gear ring 811 drives the pinion 812 shaft to rotate synchronously through a series of gear transmissions. The shaft drives the transmission shaft 814 through the transmission of the bevel gear set 816. The transmission shaft 814 drives the positioning shaft 815 and the rotating rod 817 to rotate through the transmission of the bevel gear set 816. The rotation of the rotating rod 817 drives the movable rod 818 to move back and forth up and down. During the movement process, the movable rod 818 cooperates with the guide rod 822 to move back and forth left and right in the reciprocating groove 821. This left and right reciprocating movement enables the moving block 819 and the knocking rod 823 to move back and forth left and right while moving back and forth up and down. This composite reciprocating motion enables the knocking rod 823 to effectively knock the outer wall of the lower mold 4. This knocking action helps to subsequently demold the copper-clad laminate in the lower mold 4, ensuring the smooth progress of the entire pressing process and the quality of the final product. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A top plate pressing device for producing DBC copper clad laminates, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a fixed rod (2) on all sides, the top of the fixed rod (2) is fixedly connected to a top plate (3), the fixed rod (2) is slidably connected to a movable plate (5), the bottom of the movable plate (5) is provided with a first damping spring (21) sleeved on the fixed rod (2) on all sides, the bottom of the movable plate (5) is provided with a pressing plate (6) adapted to the lower mold (4) on the bottom, the bottom of the fixed rod (2) is provided with a downward pressing component (7) for driving the movable plate (5) and the pressing plate (6) to move downward to press the copper clad laminate in the lower mold (4) on all sides, and the top of the movable plate (5) is provided with a knocking component (8) for knocking the four corners of the movable plate (5) to solve the problem of warping of the four corners of the copper clad laminate during production; The pressing assembly (7) comprises a fixing plate (71) fixedly mounted on the bottom of the top plate (3), two groups of inclined plates (72) are arranged at both ends of the inner side of the fixing plate (71), each group of inclined plates (72) is provided with a groove, and a slider (73) is slidably connected in the groove, a reciprocating member is arranged at the inner end of each corresponding slider (73), a second transmission rod (710) is arranged at the inner end of the reciprocating member, a row of toggle rods (711) are arranged in the vertical direction at the inner end of the second transmission rod (710), U-shaped frames (712) are fixedly connected at both sides of the fixing plate (71), a sliding rod (713) is fixedly connected to the inner wall of the U-shaped frame (712), and the sliding rod (713) slides upward. A sliding plate (714) is movably connected thereto, and the positions of the sliding plate (714) and the toggle rod (711) correspond to each other. A row of pressing rods (715) for pushing the moving plate (5) to move downward is arranged at the bottom of the sliding plate (714). A second damping spring (716) sleeved on the sliding rod (713) is arranged at the bottom of the sliding plate (714). A row of moving rods (717) are slidably arranged on the U-shaped frame (712). The inner ends of the moving rods (717) are fixedly connected to trapezoidal blocks (718) corresponding to the sliding plate (714). The outer ends of the trapezoidal blocks (718) are arranged to have third damping springs (719) sleeved on the moving rods (717).

2. The upper plate pressing device for producing DBC copper clad laminate according to claim 1, characterized in that: The reciprocating member comprises a positioning rod (74) fixedly mounted on the inner end of each group of sliders (73); connecting plates (75) are arranged on both sides of the two positioning rods (74); a V-shaped frame (76) mounted on the positioning rods (74) is arranged outside the connecting plates (75); a first transmission rod (79) and a second transmission rod (710) are arranged on both sides of the V-shaped frame (76); and a driving member is arranged on one side of the lower positioning rod (74).

3. The upper plate pressing device for producing DBC copper clad laminate according to claim 2, characterized in that: The driving member comprises a servo motor (720) fixedly mounted on the fixed plate (71); an output end of the servo motor (720) is fixedly connected to a rotating rod (721); the other side of the rotating rod (721) is rotatably connected to a linkage shaft (722); both sides of the linkage shaft (722) are rotatably connected to push rods (723); the other side of the push rod (723) is connected to a V-shaped frame (76).

4. The upper plate pressing device for producing DBC copper clad laminate according to claim 3, characterized in that: The V-shaped frame (76) comprises a first support rod (761) and a second support rod (762), wherein the first support rod (761) and the second support rod (762) are fixedly connected, and a first connecting rod (77) and a second connecting rod (78) are respectively arranged at the outer ends of the first support rod (761) and the second support rod (762), and the second transmission rod (710) is rotatably mounted on the first connecting rod (77), and the first transmission rod (79) is rotatably arranged on the second connecting rod (78).

5. The upper plate pressing device for producing DBC copper clad laminate according to claim 1, characterized in that: The knocking assembly (8) comprises a driving motor (81) fixedly mounted on the top plate (3); the output end of the driving motor (81) is fixedly connected to a telescopic rod (82); the bottom end of the telescopic rod (82) is rotatably connected to a fixed plate (83) fixedly mounted on the top of the moving plate (5) via a support rod; a cylinder (84) is fixedly connected to the telescopic rod (82); a sliding rod (86) is slidably connected to the periphery of the fixed plate (83) in a vertical direction; the cylinder (84) drives the sliding rod (86) to move up and down; a knocking block (88) for knocking the periphery of the top of the moving plate (5) is fixedly connected to the bottom of the sliding rod (86); a positioning sleeve (89) fixedly mounted on the bottom of the fixed plate (83) is slidably connected to the sliding rod (86); a fourth damping spring (810) sleeved on the sliding rod (86) is arranged between the positioning sleeve (89) and the knocking block (88).

6. The upper plate pressing device for producing DBC copper clad laminate according to claim 5, characterized in that: The outer end of the cylinder (84) is provided with arc grooves (85) in a circumferential array, and the upper end side wall of the sliding rod (86) is provided with a guide column (87) slidably installed in the arc groove (85).

7. The upper plate pressing device for producing DBC copper clad laminate according to claim 6, characterized in that: The telescopic rod (82) comprises a sleeve rod (8201) and a spline rod (8202); the sleeve rod (8201) is fixedly connected to the output end of the drive motor (81); the spline rod (8202) and the sleeve rod (8201) are slidably connected in the vertical direction; the bottom of the spline rod (8202) is rotatably connected to the fixed plate (83) via a bearing; and the cylinder (84) is fixedly mounted on the spline rod (8202).

8. The upper plate pressing device for producing DBC copper clad laminate according to claim 7, characterized in that: The bottom of the cylinder (84) is fixedly connected to a driving gear ring (811), and the driving gear ring (811) is meshed with a pinion gear (812) around it. The pinion gear (812) is rotatably mounted on a fixed disk (83) via a rotating shaft. The bottom of the fixed disk (83) is fixedly connected to a supporting plate (813) around it, and a transmission shaft (814) is rotatably connected to the supporting plate (813). The supporting plate (813) is rotatably connected to a rotating rod (817) via a positioning shaft (815). Both ends of the transmission shaft (814) are connected via a bevel gear set (816). ) are respectively connected to the rotating shaft and the positioning shaft (815); the other end of the rotating rod (817) is rotatably connected to a movable rod (818); the other end of the movable rod (818) is rotatably connected to a moving block (819); the moving block (819) is located at the outer end of the lower mold (4); a row of knocking rods (823) are arranged at the inner end of the moving block (819); the knocking rods (823) are laterally slidably mounted on the moving block (819); and a fifth damping spring (824) is arranged between the knocking rods (823) and the moving block (819).

9. The upper plate pressing device for producing DBC copper clad laminate according to claim 8, characterized in that: The movable plate (5) is fixedly connected with vertical plates (820) on all sides. A reciprocating groove (821) is provided on the surface of the vertical plate (820). Two groups of guide rods (822) are slidably connected in the reciprocating groove (821). One end of the two groups of guide rods (822) is fixedly connected to the movable block (819).

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