A circuit board soft plate trimming device

Abstract

This utility model relates to the technical field of trimming devices, specifically a circuit board flexible board trimming device, including a worktable. The top of the worktable is fixedly connected to a transmission mechanism by bolts. An electric push rod drives a vacuum suction cup to hold the circuit board. A handwheel drives a turntable and the electric push rod to rotate within a bearing, thereby achieving the purpose of rotating and adjusting the circuit board on all four sides. Then, the restoring force of a spring pushes a sliding plate to return to its original position within a fixed frame, and a pull rod is inserted into a corresponding set of slots, thereby achieving the purpose of locking the rotation of the circuit board. The transmission mechanism, in conjunction with a first motor and a grinding wheel, trims the circuit board. At the same time, the electric push rod adsorbs and fixes the circuit board, which can reduce the damage to the surface of the circuit board caused by rigid clamping mechanisms. It also solves the problem that existing methods of trimming circuit boards with multiple sides require multiple disassembly and adjustment of the circuit board, resulting in reduced trimming efficiency.

Description

Technical Field

[0001] This utility model relates to the field of trimming device technology, specifically a circuit board flexible board trimming device. Background Technology

[0002] In today's rapidly developing electronics and information industry, circuit boards (PCBs), as key carriers of electronic components, are increasingly widely used, from consumer electronics to industrial control and aerospace. Flexible circuit boards (FPCBs), with their excellent flexibility, thinness, and bendability, are increasingly used in various miniaturized and irregularly shaped electronic devices. During the manufacturing process of FPCBs, due to the effects of cutting, stamping, and other processing steps, burrs, excess adhesive, and waste material often remain on the edges. These defects not only affect the appearance quality of the FPCB but may also cause wear and tear on other electronic components during subsequent assembly and use, and even lead to short circuits and other safety hazards. Therefore, edge trimming of FPCBs is a crucial step in ensuring product quality and performance.

[0003] Currently, the circuit board flexible circuit board trimming devices in the industry require clamping mechanisms to fix the circuit board flexible circuit board to ensure trimming accuracy. However, since multiple sides of the circuit board flexible circuit board need to be trimmed, the existing devices must loosen the clamping mechanism, remove the circuit board flexible circuit board to adjust its position and orientation, and then reinstall and fix it before continuing to trim other sides after completing the trimming of one side. The multiple disassembly and adjustment is time-consuming and reduces trimming efficiency. At the same time, frequent disassembly and assembly may also damage the circuit board flexible circuit board, especially for thin and low-strength flexible circuit boards, which can easily cause deformation and creases, affecting product quality. Therefore, we propose a circuit board flexible circuit board trimming device. Utility Model Content

[0004] The purpose of this invention is to provide a circuit board flexible board trimming device to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A circuit board flexible circuit board trimming device includes a worktable. A transmission mechanism is fixedly connected to the top of the worktable by bolts. A first motor is installed on the transmission mechanism, serving as the power source for the transmission mechanism. A second motor is installed on the transmission mechanism, and a grinding wheel is fixedly connected to the output end of the second motor. A connecting component is provided between the second motor and the grinding wheel. The second motor is connected to the grinding wheel through the connecting component. The transmission mechanism is used to drive the grinding wheel to move back and forth and left and right. A circuit board is placed on the worktable below the grinding wheel. An adjustment component for clamping the circuit board is provided on the front surface of the transmission mechanism.

[0007] Preferably, the adjustment assembly includes a connecting plate fixedly connected to the front surface of the transmission mechanism, a bearing is built into the connecting plate, an electric push rod is fixedly connected to the inner wall of the bearing, a vacuum suction cup is fixedly connected to the bottom of the electric push rod, a turntable is fixedly connected to the top surface of the electric push rod, a handwheel is fixedly connected to the outer wall of the turntable, a fixed frame is fixedly connected to the surface of the connecting plate at the front end of the turntable, a sliding plate is slidably connected inside the fixed frame, a pull rod is fixedly connected to the middle of the sliding plate, the pull rod is slidably connected to the fixed frame, a spring is wound around the surface of the pull rod in the fixed frame, and several sets of slots are equally spaced on the outer wall of the turntable corresponding to the inner end of the pull rod.

[0008] Preferably, the vacuum suction cups are provided in four sets, and the four sets of vacuum suction cups are set on the bottom of the electric push rods at the four corners of the corresponding circuit board.

[0009] Preferably, the slide plate is designed in a cross shape, and the fixing frame has through holes adapted to the slide plate.

[0010] Preferably, the connecting assembly includes a socket fixedly connected to the bottom of the second motor, a slider slidably connected inside the socket, the bottom of the slider being fixedly connected to a grinding wheel, two sets of fixing blocks symmetrically fixedly connected to the front and rear ends of the socket, a rotating rod rotatably connected inside the slider, a torsion spring wound around the surface of the rotating rod in the fixing block, a threaded rod fixedly connected to the bottom of the rotating rod, a connecting block fixedly connected to the outer wall of the slider below the threaded rod, a self-locking nut threadedly connected to the threaded rod, and a limit groove formed on the surface of the connecting block corresponding to the top surface of the self-locking nut.

[0011] Preferably, the torsion spring is provided in two sets, and the two sets of torsion springs are respectively wound around both ends of the rotating rod. One end of the torsion spring is welded to the inner wall of the fixed block, and the other end of the torsion spring is welded to the surface of the rotating rod.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model uses an electric push rod to drive a vacuum suction cup to hold the circuit board. Then, a handwheel drives a turntable and the electric push rod to rotate within a bearing, thereby achieving the purpose of rotating and adjusting the circuit board on all four sides. Then, the spring's restoring force pushes a sliding plate to return to its original position within a fixed frame, and a pull rod is inserted into a corresponding set of slots, thereby achieving the purpose of locking the circuit board's rotation. Then, a transmission mechanism and a first motor work together with a grinding wheel to trim the edges of the circuit board, making it easier for workers to trim multiple sides of the circuit board. At the same time, the electric push rod's adsorption and fixation of the circuit board reduces the damage to the circuit board surface caused by rigid clamping mechanisms. It also solves the problem that existing methods of trimming multiple sides of a circuit board require multiple disassembly and adjustment of the circuit board, resulting in reduced trimming efficiency.

[0014] 2. This utility model uses a slider inserted into a socket, and a threaded rod drives a rotating rod to rotate within a fixed block. The rotating rod then causes a torsion spring to twist, and the threaded rod drives a self-locking nut into a connecting block. The self-locking nut is then rotated on the threaded rod, causing it to enter a limiting groove and abut against it. This also allows the slider to fit against the inner wall of the socket, thus achieving the purpose of installing the grinding wheel. When the grinding wheel needs to be removed, the self-locking nut is turned out of the limiting groove. At this time, the restoring force of the torsion spring causes the rotating rod and threaded rod to return to their original rotation, and the threaded rod to turn out of the connecting block, thus quickly releasing the limiting position of the grinding wheel, making it easy for workers to disassemble the grinding wheel. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a side view structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0019] Figure 4 This is an exploded structural diagram of the connecting component of this utility model.

[0020] The following are the reference numerals in the attached diagram: 1. Workbench; 2. Transmission mechanism; 3. First motor; 4. Second motor; 5. Grinding wheel; 6. Circuit board; 7. Adjustment assembly; 71. Connecting plate; 72. Bearing; 73. Electric push rod; 74. Vacuum suction cup; 75. Turntable; 76. Handwheel; 77. Fixing frame; 78. Slide plate; 79. Pull rod; 710. Spring; 711. Slot; 8. Connecting assembly; 81. Socket; 82. Slider; 83. Fixing block; 84. Rotating rod; 85. Torsion spring; 86. Threaded rod; 87. Connecting block; 88. Self-locking nut; 89. Limiting groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-4 As shown, a circuit board flexible board trimming device includes a workbench 1. A transmission mechanism 2 is fixedly connected to the top of the workbench 1 by bolts. A first motor 3 is installed on the transmission mechanism 2, which serves as the power source for the transmission mechanism 2. A second motor 4 is installed on the transmission mechanism 2. A grinding wheel 5 is fixedly connected to the output end of the second motor 4. A connecting component 8 is provided between the second motor 4 and the grinding wheel 5. The second motor 4 is connected to the grinding wheel 5 through the connecting component 8. The transmission mechanism 2 is used to drive the grinding wheel 5 to move back and forth and left and right. A circuit board 6 is placed on the workbench 1 below the grinding wheel 5. An adjustment component 7 for clamping the circuit board 6 is provided on the front surface of the transmission mechanism 2.

[0023] As a technical optimization of this utility model, the adjustment component 7 includes a connecting plate 71 fixedly connected to the front surface of the transmission mechanism 2. A bearing 72 is built into the connecting plate 71. An electric push rod 73 is fixedly connected to the inner wall of the bearing 72. A vacuum suction cup 74 is fixedly connected to the bottom of the electric push rod 73. A turntable 75 is fixedly connected to the top surface of the electric push rod 73. A handwheel 76 is fixedly connected to the outer wall of the turntable 75. A fixed frame 77 is fixedly connected to the surface of the connecting plate 71 at the front end of the turntable 75. A sliding plate 78 is slidably connected inside the fixed frame 77. A pull rod 79 is fixedly connected to the middle of the sliding plate 78. The pull rod 79 is slidably connected to the fixed frame 77. A spring 710 is wound around the surface of the pull rod 79 in the fixed frame 77. Several sets of slots 711 are equally spaced on the outer wall of the turntable 75 corresponding to the inner end of the pull rod 79.

[0024] In practice, the circuit board 6 is held in place by the vacuum suction cup 74 driven by the electric push rod 73. Then, the turntable 75 and the electric push rod 73 rotate within the bearing 72 via the handwheel 76, thereby achieving the purpose of rotating and adjusting the circuit board 6 on all four sides. The sliding plate 78 is then pushed back and slid within the fixed frame 77 by the restoring force of the spring 710, and the pull rod 79 is inserted into the corresponding set of slots 711, thereby achieving the purpose of locking the rotation of the circuit board 6. The transmission mechanism 2 and the first motor 3 work together with the grinding wheel 5 to trim the edges of the circuit board 6, making it easier for workers to trim multiple sides of the circuit board 6. At the same time, the electric push rod 73 adsorbs and fixes the circuit board 6, which can reduce the damage to the surface of the circuit board 6 caused by the rigid clamping mechanism. It also solves the problem that when trimming multiple sides of the circuit board 6, multiple disassembly and adjustment of the circuit board 6 are required, resulting in reduced trimming efficiency.

[0025] As a technical optimization of this utility model, four sets of vacuum suction cups 74 are provided, and the four sets of vacuum suction cups 74 are set on the bottom of the electric push rods 73 at the four corners of the corresponding circuit board 6.

[0026] In practice, the negative pressure of the four sets of vacuum suction cups 74 can be distributed to the four corners of the board, forming a "four-point balanced support", which prevents the board from being attracted to a single point or edge, and prevents the board from bending or warping due to uneven force.

[0027] As a technical optimization of this utility model, the slide plate 78 is designed in a cross shape, and the fixing frame 77 has a through hole that is compatible with the slide plate 78.

[0028] In practice, the fixed frame 77 and the slide plate 78 can cooperate with each other to guide the slide plate 78, making the slide plate 78 more stable when sliding back and forth in the fixed frame 77, and preventing the slide plate 78 from getting stuck and unable to slide when the spring 710 pushes it to slide in the fixed frame 77.

[0029] As a technical optimization of this utility model, the connecting component 8 includes a socket 81 fixedly connected to the bottom of the second motor 4, a slider 82 slidably connected inside the socket 81, the bottom of the slider 82 being fixedly connected to the grinding wheel 5, two sets of fixing blocks 83 being symmetrically fixedly connected to the front and rear ends of the socket 81, a rotating rod 84 being rotatably connected inside the slider 82, a torsion spring 85 being wound around the surface of the rotating rod 84 in the fixing block 83, a threaded rod 86 being fixedly connected to the bottom of the rotating rod 84, a connecting block 87 being fixedly connected to the outer wall of the slider 82 below the threaded rod 86, a self-locking nut 88 being threadedly connected to the threaded rod 86, and a limit groove 89 being formed on the surface of the connecting block 87 corresponding to the top surface of the self-locking nut 88.

[0030] In practice, the slider 82 is inserted into the socket 81, and the threaded rod 86 drives the rotating rod 84 to rotate within the fixed block 83. The rotating rod 84 then drives the torsion spring 85 to twist, causing the threaded rod 86 to drive the self-locking nut 88 into the connecting block 87. Next, the self-locking nut 88 is rotated on the threaded rod 86, causing it to rotate into the limiting groove 89 and abut against it. This also causes the slider 82 to fit against the inner wall of the socket 81, thus achieving the purpose of installing the grinding wheel 5. When it is necessary to disassemble the grinding wheel 5, the self-locking nut 88 is turned out of the limiting groove 89. At this time, the restoring force of the torsion spring 85 drives the rotating rod 84 and the threaded rod 86 to reset and rotate, causing the threaded rod 86 to turn out of the connecting block 87. This achieves the purpose of quickly releasing the limiting position of the grinding wheel 5, making it easier for workers to disassemble the grinding wheel 5.

[0031] As a technical optimization of this utility model, two sets of torsion springs 85 are provided. The two sets of torsion springs 85 are respectively wound around the two ends of the rotating rod 84. One end of the torsion spring 85 is welded to the inner wall of the fixing block 83, and the other end of the torsion spring 85 is welded to the surface of the rotating rod 84.

[0032] In practice, the torque of the two sets of torsion springs 85 can be evenly output to both ends of the rotating rod 84, making the rotating rod 84 more stable when it resets and rotates within the fixed block 83. At the same time, it increases the connection strength between the torsion springs 85, the fixed block 83, and the rotating rod 84, thereby improving the service strength of the torsion springs 85.

[0033] In use, this invention first uses an electric push rod 73 to drive a vacuum suction cup 74 to adsorb the circuit board 6, and a second motor 4 to fix the circuit board 6. Then, the transmission mechanism 2, in conjunction with the first motor 3 and a grinding wheel 5, trims the edges of the circuit board 6. When trimming the other side of the circuit board 6 is required, the pull rod 79 is pulled away from the fixed frame 77, causing the pull rod 79 to slide the slide plate 78 within the fixed frame 77 and compress the spring 710 until the pull rod 79 slides out of the slot 711. Then, the handwheel 76 drives the turntable 75 and the electric push rod 73 to rotate within the bearing 72, so that the other side of the circuit board 6 faces the grinding wheel 5. The spring 710 is then released, and the restoring force of the spring 710 pushes the slide plate 78 to return to its original position within the fixed frame 77, allowing the pull rod 79 to insert into the corresponding set of slots 711, thereby achieving the purpose of switching multiple sides of the circuit board 6.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for trimming a soft board of a wiring board, comprising a worktable (1), characterized in that, The top of the workbench (1) is fixedly connected to a transmission mechanism (2) by bolts. A first motor (3) is provided on the transmission mechanism (2), which serves as the power source for the transmission mechanism (2). A second motor (4) is provided on the transmission mechanism (2). A grinding wheel (5) is fixedly connected to the output end of the second motor (4). A connecting component (8) is provided between the second motor (4) and the grinding wheel (5). The second motor (4) is connected to the grinding wheel (5) through the connecting component (8). The transmission mechanism (2) is used to drive the grinding wheel (5) to move back and forth and left and right. A circuit board (6) is placed on the workbench (1) below the grinding wheel (5). An adjustment component (7) for clamping the circuit board (6) is provided on the front surface of the transmission mechanism (2).

2. The apparatus according to claim 1, wherein The adjustment assembly (7) includes a connecting plate (71) fixedly connected to the front surface of the transmission mechanism (2). A bearing (72) is built into the connecting plate (71). An electric push rod (73) is fixedly connected to the inner wall of the bearing (72). A vacuum suction cup (74) is fixedly connected to the bottom of the electric push rod (73). A turntable (75) is fixedly connected to the top surface of the electric push rod (73). A handwheel (76) is fixedly connected to the outer wall of the turntable (75). A fixed frame (77) is fixedly connected to the surface of the connecting plate (71) at the front end of the turntable (75). A sliding plate (78) is slidably connected inside the fixed frame (77). A pull rod (79) is fixedly connected to the middle of the sliding plate (78). The pull rod (79) is slidably connected to the fixed frame (77). A spring (710) is wound around the surface of the pull rod (79) in the fixed frame (77). Several sets of slots (711) are equally spaced on the outer wall of the turntable (75) corresponding to the inner end of the pull rod (79).

3. The apparatus according to claim 2, wherein The vacuum chuck (74) is provided in four sets, and the four sets of vacuum chuck (74) are set on the bottom of the electric push rod (73) at the four corners of the corresponding circuit board (6).

4. The apparatus according to claim 2, wherein The slide plate (78) is designed in a cross shape, and the fixing frame (77) has through holes that are adapted to the slide plate (78).

5. The apparatus according to claim 1, wherein The connecting assembly (8) includes a socket (81) fixedly connected to the bottom of the second motor (4), a slider (82) slidably connected inside the socket (81), the bottom of the slider (82) being fixedly connected to the grinding wheel (5), two sets of fixing blocks (83) being symmetrically fixedly connected to the front and rear ends of the socket (81), a rotating rod (84) being rotatably connected inside the slider (82), a torsion spring (85) being wound around the surface of the rotating rod (84) in the fixing block (83), a threaded rod (86) being fixedly connected to the bottom of the rotating rod (84), a connecting block (87) being fixedly connected to the outer wall of the slider (82) below the threaded rod (86), a self-locking nut (88) being threadedly connected to the threaded rod (86), and a limit groove (89) being opened on the surface of the connecting block (87) corresponding to the top surface of the self-locking nut (88).

6. The apparatus according to claim 5, wherein The torsion spring (85) is provided in two sets. The two sets of torsion spring (85) are respectively wound around the two ends of the rotating rod (84). One end of the torsion spring (85) is welded to the inner wall of the fixed block (83), and the other end of the torsion spring (85) is welded to the surface of the rotating rod (84).

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