A clamping device for PCB production

Abstract

This invention relates to a clamping device for PCB board production, comprising a base with frames on both sides of the top, and a U-shaped frame with an upward-facing opening driven by motor I between the two frames. A locking mechanism is provided within the opening of the U-shaped frame. The locking mechanism includes sliding openings at both ends of the bottom sidewall of the U-shaped frame, with a slide block within each sliding opening. A forward and reverse lead screw driven by motor II is mounted on the slide block. A locking rod is also provided within the sliding opening, with its top end extending into the opening of the U-shaped frame. The locking rod is hinged to the top surface of the corresponding slide block via a hinge. A vertical groove is provided on the end face of the locking rod away from the slide block. A rotating shaft is also provided at the top of the locking rod outside the groove, driven by motor III. An L-shaped rod with its horizontal end located between the two sets of locking rods is provided at the end of the rotating shaft. An arc-shaped notch coaxial with the rotating shaft is provided on one side of the top of the locking rod. This invention has a simple structure and is easy to use.

Description

Technical Field

[0001] This invention relates to the field of PCB manufacturing, and more particularly to a clamping device for PCB manufacturing. Background Technology

[0002] Circuit board names include: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, and printed circuit board (copper etching technology), etc.

[0003] During PCB manufacturing, fixtures are typically used to position the PCB. Existing PCB manufacturing processes often require continuous soldering of electronic components or drilling on both sides of the board, necessitating frequent flipping. Furthermore, existing PCB clamping devices require disassembling, flipping, and reinstalling the PCB, impacting production efficiency. Additionally, the waste generated during soldering or drilling leaves residue on the PCB, requiring additional cleaning. Summary of the Invention

[0004] The purpose of this invention is to provide a clamping device for PCB board production.

[0005] The technical problem of this invention is mainly solved by the following technical solution: A clamping device for PCB board production includes a base, with frames arranged on both sides of the top of the base, and a U-shaped frame with an upward opening and driven by a motor I arranged between the two sets of frames, and a locking mechanism arranged in the opening of the U-shaped frame. The locking mechanism includes sliding openings at both ends of the bottom sidewall of the C-shaped frame. A slide block is provided within each sliding opening, and a forward / reverse lead screw driven by motor II is mounted on the slide block. A locking rod is also provided within the sliding opening, closely attached to the sidewall of the slide block. The top end of the locking rod extends into the opening of the C-shaped frame. The locking rod is hinged to the top surface of the corresponding slide block via a hinge. A slot is vertically provided on the end face of the locking rod away from the slide block. A rotating shaft is also provided at the top end of the locking rod outside the slot. The rotating shaft is driven by motor III. An L-shaped rod with its horizontal end located between the two sets of locking rods is provided at the end of the rotating shaft. An arc-shaped notch coaxial with the rotating shaft is provided on one side of the top of the locking rod. Motor III drives the L-shaped rod to rotate via the rotating shaft so that its horizontal end engages with the sealing end of the arc-shaped notch outside the slot.

[0006] Preferably, an elastic mechanism is provided at the bottom of the C-shaped frame between the two sets of sliding openings. The elastic mechanism includes a groove on the bottom wall of the opening of the C-shaped frame for accommodating the strip plate. The bottom of the strip plate is connected to the bottom wall of the groove through an elastic element. A T-shaped rod is provided below the C-shaped frame, passing through its bottom wall and connected to the bottom of the strip plate.

[0007] Preferably, the bottom sides of the C-shaped frame are provided with mounting seats for fixing the ends of the positive and negative lead screws, and the mounting seats are provided with bearings for fixing the positive and negative lead screws.

[0008] Preferably, the two sets of locking rods are located between the two sets of slides, with the bottom end of the locking rod located above the positive and negative lead screws, and both the locking rod and the slide are adapted to the size of the sliding opening.

[0009] Preferably, the arc-shaped notch is located above the rotating shaft, and the sealing end of the arc-shaped notch is on the same vertical plane as the rotating shaft directly below it.

[0010] Preferably, the motor III is located on the front side of the locking rod, and the L-shaped rod is located on the rear side of the locking rod.

[0011] Preferably, a limiting mechanism is provided on the back of the top end of the locking rod. The limiting mechanism includes a strip-shaped opening vertically disposed on both sides of the opening end of the shaped frame. An arc-shaped plate extending to the outside of both ends is disposed in the strip-shaped opening. One end of the arc-shaped plate is fixedly connected to the back of the corresponding locking rod. The hinge between the locking rod and the corresponding slide is coaxially disposed with the arc-shaped plate.

[0012] Preferably, a rectangular notch is provided at the top of the base, and a material collection tray is provided inside the rectangular notch.

[0013] The beneficial effects of this invention are as follows: This invention uses a locking mechanism to lock and fix the PCB board inside the U-shaped frame. At the same time, by adjusting the position of the horizontal end of the L-shaped rod in the locking mechanism and the distance between the two sets of locking rods, it can meet the fixing work of PCB boards of different sizes. Furthermore, by rotating the U-shaped frame and the locking mechanism, the PCB board can be flipped over to facilitate processing of its different end faces. Simultaneously, the locking mechanism, in conjunction with the elastic mechanism, can cause the PCB board to vibrate slightly, so that impurities on the end face of the PCB board can be separated and fall off, thereby achieving the purpose of cleaning impurities. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0015] In the diagram: 1. Base, 2. Frame, 3. C-shaped frame, 4. Motor I, 5. Locking mechanism, 51. Sliding opening, 52. Slide block, 53. Positive and negative lead screws, 54. Motor II, 55. Locking rod, 56. Slot, 57. Rotating shaft, 58. Motor III, 59. L-shaped rod, 510. Arc-shaped notch, 6. Elastic mechanism, 61. Groove, 62. Strip plate, 63. Elastic element, 64. T-shaped rod, 7. Mounting base, 8. Limiting mechanism, 81. Strip opening, 82. Arc-shaped plate, 9. Rectangular notch, 10. Collection tray. Detailed Implementation

[0016] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] A clamping device for PCB board production includes a base 1, with frames 2 arranged on both sides of the top of the base 1, and a U-shaped frame 3 with an upward opening and driven by a motor I4 arranged between the two sets of frames 2, and a locking mechanism 5 arranged in the opening of the U-shaped frame 3. The locking mechanism 5 includes sliding openings 51 at both ends of the bottom sidewall of the U-shaped frame 3. A slide block 52 is provided within each sliding opening 51, and a forward / reverse lead screw 53 driven by a motor II 54 is mounted on the slide block 52. A locking rod 55 is also provided within each sliding opening 51, closely abutting the sidewall of the slide block 52. The top end of the locking rod 55 extends into the opening of the U-shaped frame 3. The locking rod 55 is hinged to the top surface of the corresponding slide block 52 via a hinge. The end face of the locking rod 55 furthest from the slide block 52... A slot 56 is vertically provided. A rotating shaft 57 is also provided at the top of the locking rod 55 on the outer side of the slot 56. The rotating shaft 57 is driven by a motor III 58. An L-shaped rod 59 with its horizontal end located between the two sets of locking rods 55 is provided at the end of the rotating shaft 57. An arc-shaped notch 510 coaxially arranged with the rotating shaft 57 is provided on one side of the top of the locking rod 55. The motor III 58 drives the L-shaped rod 59 to rotate through the rotating shaft 57 so that its horizontal end is engaged with the sealing end of the arc-shaped notch 510 on the outer side of the slot 56.

[0018] An elastic mechanism 6 is provided at the bottom of the C-shaped frame 3 between the two sets of sliding openings 51. The elastic mechanism 6 includes a groove 61 located on the bottom wall of the opening of the C-shaped frame 3 for accommodating the strip plate 62. The bottom of the strip plate 62 is connected to the bottom wall of the groove 61 through an elastic element 63. A T-shaped rod 64 is provided below the C-shaped frame 3, passing through its bottom wall and connected to the bottom of the strip plate 62.

[0019] like Figure 1 , 2As shown, mounting seats 7 for fixing the ends of the positive and negative lead screws 53 are provided on both sides of the bottom of the C-shaped frame 3, and bearings for fixing the positive and negative lead screws 53 are provided in the mounting seats 7.

[0020] In this embodiment, two sets of locking rods 55 are located between two sets of slide blocks 52. The bottom end of the locking rod 55 is located above the positive and negative lead screws 53. The locking rod 55 and the slide block 52 are both adapted to the size of the sliding opening 51.

[0021] like Figure 2 As shown, the arc-shaped notch 510 is located above the rotating shaft 57, and the sealing end of the arc-shaped notch 510 is on the same vertical plane as the rotating shaft 57 directly below it. In this embodiment, the motor III 58 is located on the front side of the locking rod 55, and the L-shaped rod 59 is located on the rear side of the locking rod 55.

[0022] The top back of the locking rod 55 is provided with a limiting mechanism 8. The limiting mechanism 8 includes a strip opening 81 vertically provided on both sides of the opening end of the bracket 3. An arc plate 82 extending to the outside of the two ends is provided in the strip opening 81. One end of the arc plate 82 is fixedly connected to the back of the corresponding locking rod 55. The hinge between the locking rod 55 and the corresponding slide 52 is coaxially arranged with the arc plate 82.

[0023] like Figure 1 , 2 As shown, a rectangular notch 9 is provided on the top of the base 1, and a material collection tray 10 is provided inside the rectangular notch 9.

[0024] When the opening of the bracket 3 faces upward and is used to install the PCB board, under the influence of the gravity of components such as motor III 58 and arc plate 82, it will drive the locking rod 55 to rotate around the corresponding hinge. This causes the bottom end of the locking rod 55 to slide in the sliding opening 51 and the arc plate 82 to slide in the strip opening 81. Finally, the locking rod 55 is in an inclined state, and the two sets of locking rods 55 form an inverted V-shaped structure.

[0025] By placing the PCB board between the upper halves of the two sets of locking rods 55, with its bottom end inserted between the bottom ends of the two sets of locking rods 55, the bottom end of the PCB board is embedded in the slot 56. Under the influence of gravity or human force, the bottom end of the PCB board will continue to move downward within the slot 56. At this time, under the pressure of the bottom end of the PCB board, it will drive the locking rod 55 to rotate around the corresponding hinge as the center, so that both sets of locking rods 55 are in a vertical state, and the locking rod 55 locks and fixes the two ends of the PCB board through the slot 56.

[0026] During the above process, motor III 58 drives the horizontal end of L-shaped rod 59 to slide into the sealing end of arc-shaped notch 510 via shaft 57, ensuring that it does not interfere with the PCB board sliding through slot 56. When the two sets of locking rods 55 are in a vertical position and the PCB board is fixed, the top of the PCB board is located below arc-shaped notch 510. Then, motor III 58 drives shaft 57 to rotate L-shaped rod 59, causing the horizontal end of L-shaped rod 59 to slide out from arc-shaped notch 510 between the two sets of locking rods 55. At the same time, the top of L-shaped rod 59 contacts the top of the PCB board. The contact exerts a downward squeezing force on the PCB board, forcing it to continue sliding downward within the two sets of slots 56 and contacting the inner bottom wall of the bracket 3. The inner bottom wall of the bracket 3 provides support for the PCB board, while the L-shaped rod 59 locks the PCB board to prevent it from slipping between the two sets of locking rods 55. As the PCB board moves downward, it pushes the strip plate 62 downward, causing it to slide into the groove 61 while simultaneously compressing the elastic element 63 to contract. This drives the vertical end of the T-shaped rod 64 to slide downward within the hole in the bottom wall of the groove 61, ultimately... Figure 1 , 2 As shown, at this time, because the L-shaped rod 69 presses and fixes the PCB board to the inner bottom wall of the frame 3, the PCB board cannot move upward effectively. The bottom end of the PCB board abuts against the bottom end of the locking rod 55 to prevent it from rotating around the hinge. Ultimately, the locking rod 55 remains vertical, thus locking the PCB board between the two sets of locking rods 55 in the above manner. After the PCB board is processed, as... Figure 1 , 2 At this point, the motor III58 simply drives the horizontal end of the L-shaped rod 59 to engage with the sealing end of the arc-shaped notch 510. At this time, the elastic element 63 extends and pushes the strip plate 62 upward from the groove 61, causing the strip plate 61 to push the PCB board upward. When the bottom of the PCB board moves to above the hinge, under the influence of the gravity of the motor III58 and the arc plate 82, it will drive the locking rod 55 to rotate around the corresponding hinge. This causes the bottom of the locking rod 55 to slide in the sliding opening 51 and the arc plate 82 to slide in the strip opening 81. Finally, the locking rod 55 is in an inclined state, and the two sets of locking rods 55 form an inverted V-shaped structure. At this time, people can easily remove the PCB board from between the two sets of locking rods 55.

[0027] After the PCB board is installed and fixed, motor I4 drives the frame 3 to rotate the locking mechanism 5 clockwise by 90 degrees, so that the PCB board in the locking mechanism 5 is in a horizontal state. At this time, people can process the top surface of the PCB board. Then, motor I4 drives the PCB board to rotate counterclockwise by 180 degrees through the above components, so that people can process the other end surface of the PCB board.

[0028] During the above process, when the C-shaped frame 3, the locking mechanism 5, and the PCB board are in a horizontal state, the C-shaped frame 3 uses the side wall of the strip opening 81 to hold the arc plate 82, so that the arc plate 82 can support and fix the suspended end of the locking rod 55, thereby improving its stability. When the locking rod 55 rotates around the hinge, the strip opening 81 can also limit the locking rod 55 and the slot 56 through the arc plate 82, preventing them from swinging back and forth and thus failing to fix the PCB board. Similarly, the strip opening 51 can also achieve the above purpose by holding the bottom end of the locking rod 55 to limit its back and forth swing.

[0029] When the PCB board is in a horizontal position and has been processed, or when the PCB board is rotating, the motor III 58 can drive the L-shaped rod 59 to rotate slightly clockwise and counterclockwise through the rotating shaft 57. This ensures that the two sets of locking rods 55 do not tilt and the PCB board does not slip between the two sets of locking rods 55. At the same time, when the squeezing force of the L-shaped rod 59 on the PCB board decreases, the elastic element 63 expands and pushes the PCB board towards the opening of the frame through the strip plate 62 to slide slightly. Then, under the squeezing influence of the L-shaped rod 59, the PCB board moves towards the inner bottom wall of the frame 3 and squeezes the strip plate 62 into the groove 61. By repeating the above steps, the PCB board can be slightly shaken, so that impurities on its end face can be quickly shaken off into the collection tray 10. During the above process, the PCB board only slides within 1 cm to prevent its sliding range from being too large and affecting its stability, or causing the two sets of locking rods 55 to open and the PCB board to slip out of its opening.

[0030] Simultaneously, before installing the PCB board, the positive and negative lead screws 53 can be driven by motor II54 to rotate, so that the slide block 52 slides in the sliding opening 51. The slide block drives the locking rod 55 to move to adjust the distance between the two sets of locking rods 55. By adjusting the distance, the processing requirements of PCB boards of different widths can be met. Then, the PCB board can be installed in the aforementioned manner. Similarly, after the rotating shaft 57 drives the L-shaped rod 59 to slide out from the arc-shaped notch 510, the position of the horizontal end of the L-shaped rod 59 can be adjusted so that it can contact and lock the top surfaces of PCB boards of different heights in the bracket 3 and locking rod 5, so that it can achieve the locking and fixing function for PCB boards of different heights.

[0031] The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A clamping device for PCB board production, comprising a base, characterized in that: The base is provided with frames on both sides of the top, and between the two sets of frames is a C-shaped frame with an upward opening and driven by motor I. A locking mechanism is provided in the opening of the C-shaped frame. The locking mechanism includes sliding openings at both ends of the bottom sidewall of the C-shaped frame. A slide block is provided within each sliding opening, and a forward / reverse lead screw driven by motor II is mounted on the slide block. A locking rod is also provided within the sliding opening, closely attached to the sidewall of the slide block. The top end of the locking rod extends into the opening of the C-shaped frame. The locking rod is hinged to the top surface of the corresponding slide block via a hinge. A slot is vertically provided on the end face of the locking rod away from the slide block. A rotating shaft is also provided at the top end of the locking rod outside the slot. The rotating shaft is driven by motor III. An L-shaped rod with its horizontal end located between the two sets of locking rods is provided at the end of the rotating shaft. An arc-shaped notch coaxial with the rotating shaft is provided on one side of the top of the locking rod. Motor III drives the L-shaped rod to rotate via the rotating shaft so that its horizontal end engages with the sealing end of the arc-shaped notch outside the slot.

2. The clamping device for PCB board production according to claim 1, characterized in that: An elastic mechanism is provided at the bottom of the C-shaped frame between the two sets of sliding openings. The elastic mechanism includes a groove on the bottom wall of the opening of the C-shaped frame for accommodating the strip plate. The bottom of the strip plate is connected to the bottom wall of the groove through an elastic element. A T-shaped rod is provided below the C-shaped frame, passing through its bottom wall and connecting to the bottom of the strip plate.

3. The clamping device for PCB board production according to claim 1, characterized in that: The bottom of the C-shaped frame is provided with mounting seats on both sides for fixing the ends of the positive and negative lead screws, and the mounting seats are provided with bearings for fixing the positive and negative lead screws.

4. The clamping device for PCB board production according to claim 1, characterized in that: Two sets of locking rods are located between two sets of slides, with the bottom end of the locking rod positioned above the forward and reverse lead screws. Both the locking rod and the slide are adapted to the size of the sliding opening.

5. The clamping device for PCB board production according to claim 1, characterized in that: The arc-shaped notch is located above the rotating shaft, and the sealing end of the arc-shaped notch is on the same vertical plane as the rotating shaft directly below it.

6. The clamping device for PCB board production according to claim 1, characterized in that: The motor III is located on the front side of the locking rod, and the L-shaped rod is located on the rear side of the locking rod.

7. The clamping device for PCB board production according to claim 1, characterized in that: The top back of the locking rod is provided with a limiting mechanism. The limiting mechanism includes a strip opening vertically provided on both sides of the opening end of the shaped frame. An arc plate extending to the outside of both ends is provided in the strip opening. One end of the arc plate is fixedly connected to the back of the corresponding locking rod. The hinge between the locking rod and the corresponding slide is coaxially arranged with the arc plate.

8. The clamping device for PCB board production according to claim 1, characterized in that: The base has a rectangular notch at the top, and a material collection tray is provided inside the rectangular notch.

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