Printed Circuit Board Stacking Positioning Calibration Device

Abstract

This utility model discloses a printed circuit board stacking positioning and calibration device, including a main plate and a slider. The main plate has a groove inside, and a support frame is fixedly connected to the outer side of the bottom end of the main plate. The slider is slidably connected inside the groove, and a stop is located at the top of the slider. Driven by a motor, the internal threaded frame moves the stop via the slider towards the edge of the stacked printed circuit boards, causing several pressing rollers to simultaneously press the edge of the printed circuit boards. As the pressing force increases, two sets of flipping frames gradually unfold, and under the torque of a torsion spring, every two sets of pressing rollers unfold to press and align the edge of the printed circuit boards on the same side. Furthermore, a slot is opened inside the top of the slider, and a plug is fixed at the bottom of the stop, allowing the slider and the pressing calibration structure to be assembled by interlocking the plug and tightened by a fastening screw, thus making the disassembly and replacement of the pressing calibration structure more convenient.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board stacking calibration technology, and in particular to a printed circuit board stacking positioning calibration device. Background Technology

[0002] Printed circuit boards (PCBs) are circuit boards made using electronic printing technology, which enable them to serve as support carriers for electronic components. To improve the functionality and pressure resistance of PCBs, multi-layer PCB stacked structures are often chosen. To keep multi-layer PCBs flat when stacked, a dedicated PCB stacking positioning and calibration device is often used.

[0003] Common printed circuit board (PCB) stacking positioning and calibration devices use robotic arms to grasp and stack PCBs. During stacking, several sensors are used for positioning and correction. These devices are relatively expensive due to the large number of electronic components, and the numerous components also make operation more demanding. While common PCB stacking positioning and calibration devices offer good positioning and calibration results, some problems still exist:

[0004] Common printed circuit board stacking positioning and calibration devices require a high level of expertise and are not easy for beginners to operate due to the relatively large number of electronic components involved. Utility Model Content

[0005] The purpose of this invention is to provide a printed circuit board stacking positioning and calibration device to solve the problem of inconvenient operation of existing printed circuit board stacking positioning and calibration devices.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a printed circuit board stacking positioning and calibration device, including a main plate and a slider. The main plate has a groove inside. A support frame is fixedly connected to the outer side of the bottom end of the main plate. The slider is slidably connected inside the groove. A bidirectional screw is rotatably connected to the inner side of the support frame. An internal threaded frame is threadedly connected to the outer side of the bidirectional screw. The top end of the internal threaded frame is fixedly connected to the bottom end of the slider. An anti-loosening structure is fixedly connected to one side of the support frame. A pressing calibration structure is installed at the top end of the slider. The pressing calibration structure includes a stop, a limit frame, a flipping frame, a pressing roller, a torsion spring, a slot, a plug, and a fastening screw. The stop is located at the top end of the slider.

[0007] In use, the device is installed in the printed circuit board stacking production equipment and controlled by the control panel of the production equipment. A dedicated robotic arm picks up the printed circuit boards and places them on top of the main board for stacking, thus producing the printed circuit board stacks. While the printed circuit boards are stacked in sequence, the motor connected to the bidirectional screw is started, and the motor drives the bidirectional screw to intermittently rotate forward and reverse through the control panel. This causes the internal thread frame to move and press the edges of the stacked printed circuit boards through the slider, so that the edges of the stacked printed circuit boards are gradually aligned due to the pressing.

[0008] Preferably, some of the fixed connections of the stop frame are limited frames, the inner side of the limited frame is flipped to be connected to a flipping frame, the inner side of the flipping frame is rotatably connected to a pressing roller, a torsion spring is provided on one side of each end of the flipping frame, a slot is opened inside the top of the slider, the bottom end of the stop frame is fixedly connected to an insert block, and one end of the insert block is fixedly connected to a fastening screw.

[0009] Preferably, the limiting frame and the flipping frame are in a flipping structure, and the flipping frame and the pressing roller are in a rotating structure.

[0010] Preferably, the torsion springs are symmetrically distributed at both ends of the flipping frame, and the slots and inserts are in an embedded structure, thereby making the assembly and disassembly of the pressing calibration structure more convenient.

[0011] Preferably, the anti-loosening structure includes a connecting frame, an adjusting screw, a push plate, a reinforcing spring, and a side plate. The connecting frame is fixedly connected to one side of the support frame. An adjusting screw is threadedly connected to the inside of one side of the connecting frame. A push plate is slidably connected to the inside of the connecting frame. A reinforcing spring is fixedly connected to one side of the push plate. Side plates are fixedly connected to both ends of the internally threaded frame.

[0012] Preferably, the connecting frame and the adjusting screw are threadedly connected, and the adjusting screw and the push plate are rotating.

[0013] Preferably, the connecting frame and the push plate have a sliding structure, and the reinforcing springs are symmetrically distributed on one side of the push plate, so that the elastic force of the reinforcing springs can compensate for the kinetic energy of the device.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the flip-over frame allows the pressing roller to unfold when it contacts the edge of the stacked printed circuit boards, and presses and aligns the stacked printed circuit boards. At the same time, the side plates are pressed by the elastic force of the reinforcing springs on both sides of the internal thread frame, so that the threaded connection between the bidirectional screw and the internal thread frame remains tight, thereby allowing the edge of the stacked printed circuit boards to be pressed at the same time.

[0015] 1. Driven by the motor, the internal thread frame moves the block frame to the edge of the stacked printed circuit board through the slider, so that several pressing rollers press the edge of the printed circuit board at the same time. As the pressing force increases, the two sets of flipping frames gradually unfold, and under the torque of the torsion spring, each pair of pressing rollers unfolds to press and align the edge of the printed circuit board on the same side.

[0016] Furthermore, a slot is opened inside the top of the slider, and a plug is fixed at the bottom of the baffle, so that the slider and the pressing calibration structure can be assembled by docking the plug and tightened by the fastening screw, thus making the disassembly and replacement of the pressing calibration structure more convenient.

[0017] 2. When the device is in use, a connecting frame is fixed on the outside of the support frame. By rotating the adjusting screw, the push plate is pushed, thereby increasing the deformation pressure of the reinforcing spring. This compensates for the kinetic energy of the threaded connection between the bidirectional screw and the internal threaded frame, making the movement of the slider more stable. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of a three-dimensional partial structure of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the press calibration structure of this utility model;

[0021] Figure 4 This is a three-dimensional disassembly diagram of the pressing calibration structure of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the anti-loosening structure of this utility model.

[0023] In the diagram: 1. Main body plate; 2. Slide groove; 3. Support frame; 4. Slider; 5. Press calibration structure; 501. Stop frame; 502. Limit frame; 503. Tilting frame; 504. Press roller; 505. Torsion spring; 506. Slot; 507. Insert block; 508. Fastening screw; 6. Double-acting screw; 7. Internal thread frame; 8. Anti-loosening structure; 801. Connecting frame; 802. Adjusting screw; 803. Push plate; 804. Reinforcing spring; 805. Side plate. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5 The printed circuit board stacking positioning and calibration device provided by this utility model includes a main plate 1 and a slider 4. A groove 2 is provided inside the main plate 1. A support frame 3 is fixedly connected to the outer side of the bottom end of the main plate 1. The slider 4 is slidably connected inside the groove 2. A bidirectional screw 6 is rotatably connected to the inner side of the support frame 3. An internal threaded frame 7 is threadedly connected to the outer side of the bidirectional screw 6. The top end of the internal threaded frame 7 is fixedly connected to the bottom end of the slider 4. A pressing calibration structure 5 is installed at the top end of the slider 4. The pressing calibration structure 5 includes a stop 501, a limit frame 502, a flipping frame 503, a pressing roller 504, a torsion spring 505, a slot 506, an insert block 507, and a fastening screw 508. The stop 501 is provided with… At the top of the slider 4, some fixed connections of the stop frame 501 are limited by the limit frame 502. The inner side of the limit frame 502 is flipped to be connected to the flip frame 503. The inner side of the flip frame 503 is rotatably connected to the pressing roller 504. A torsion spring 505 is provided on one side of both ends of the flip frame 503. A slot 506 is opened inside the top of the slider 4. The bottom end of the stop frame 501 is fixedly connected to the insert block 507. One end of the insert block 507 is fixedly connected to the fastening screw 508. The limit frame 502 and the flip frame 503 are flipped, and the flip frame 503 and the pressing roller 504 are rotatable. The torsion spring 505 is symmetrically distributed at both ends of the flip frame 503. The slot 506 and the insert block 507 are embedded.

[0026] See attached document Figure 1 , Figure 2 , Figure 3 and Figure 4When using this calibration device, it is installed at a designated location on the printed circuit board stacking production equipment and controlled by the equipment's control panel. The robotic arm in the production equipment picks up the printed circuit boards and stacks them sequentially onto the top of the main board 1. To prevent the printed circuit boards from being stacked crookedly, resulting in defective printed circuit board stacks, timely positioning and calibration are required during the stacking process. This is achieved by simultaneously driving several motors to drive several corresponding bidirectional screws 6 in intermittent forward and reverse rotation, thereby causing the internal thread frame 7 to drive the slider 4 to slide along the inside of the slide groove 2. During the sliding process, the baffle 501 moves towards the edge of the stacked printed circuit boards, causing several pressing rollers 504 to press against the printed circuit boards. The edges of the printed circuit board are pressed simultaneously, and as the pressing force increases, the two sets of flip frames 503 gradually unfold. Under the torque of the torsion spring 505, each pair of pressing rollers 504 unfolds to press and align the edges of the printed circuit board on the same side. Furthermore, if the required printed circuit board stack is large, a larger flip frame 503 needs to be replaced. Therefore, the corresponding components need to be replaced according to the requirements. For this purpose, a slot 506 is opened inside the top of the slider 4, and a plug block 507 is fixed at the bottom of the baffle 501. This allows the slider 4 and the pressing calibration structure 5 to be assembled by docking with the plug block 507 and tightened by the fastening screw 508, making the disassembly and replacement of the pressing calibration structure 5 more convenient.

[0027] A loosening prevention structure 8 is fixedly connected to one side of the support frame 3. The loosening prevention structure 8 includes a connecting frame 801, an adjusting screw 802, a push plate 803, a reinforcing spring 804, and a side plate 805. The connecting frame 801 is fixedly connected to one side of the support frame 3. The adjusting screw 802 is internally threaded to one side of the connecting frame 801. The push plate 803 is slidably connected to the inner side of the connecting frame 801. The reinforcing spring 804 is fixedly connected to one side of the push plate 803. The two ends of the internally threaded frame 7 are fixedly connected to the side plates 805. The connecting frame 801 and the adjusting screw 802 are threadedly connected. The adjusting screw 802 and the push plate 803 are rotating. The connecting frame 801 and the push plate 803 are sliding. The reinforcing spring 804 is symmetrically distributed on one side of the push plate 803.

[0028] See attached document Figure 2 and Figure 5 When the device is in use, the pressing roller 504 located at the edge of the stacked printed circuit boards needs to press the edge of the boards simultaneously. If there is a positional deviation, the stacked printed circuit boards may become skewed. During long-term use, the thread drive of the bidirectional screw 6 and the internal thread frame 7 may vibrate, which will affect the simultaneous pressing of the pressing roller 504 on the edge of the stacked printed circuit boards. To address this, a connecting frame 801 is fixed on the outside of the support frame 3. By rotating the adjusting screw 802, it pushes the push plate 803, thereby increasing the deformation pressure of the reinforcing spring 804. This provides kinetic energy compensation for the threaded connection between the bidirectional screw 6 and the internal thread frame 7, making the movement of the slider 4 more stable.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A printed circuit board stacking positioning and calibration device, comprising a main board (1) and a slider (4); Its features are: The main body plate (1) has a sliding groove (2) inside, and a support frame (3) is fixedly connected to the outer side of the bottom end of the main body plate (1). A slider (4) is slidably connected inside the sliding groove (2). The inner side of the support frame (3) is rotatably connected to a bidirectional screw (6), and the outer side of the bidirectional screw (6) is threadedly connected to an internal thread frame (7). The top end of the internal thread frame (7) is fixedly connected to the bottom end of the slider (4), and an anti-loosening structure (8) is fixedly connected to one side of the support frame (3). The top of the slider (4) is equipped with a pressing calibration structure (5), which includes a stop (501), a limit frame (502), a flip frame (503), a pressing roller (504), a torsion spring (505), a slot (506), a plug (507), and a fastening screw (508). The stop (501) is located at the top of the slider (4).

2. The printed wiring board stack positioning and alignment apparatus of claim 1 wherein: The stop (501) is fixedly connected to a limiting frame (502). The inner side of the limiting frame (502) is flipped and connected to a flipping frame (503). The inner side of the flipping frame (503) is rotatably connected to a pressing roller (504). A torsion spring (505) is provided on one side of both ends of the flipping frame (503). A slot (506) is opened inside the top of the slider (4). The bottom end of the stop (501) is fixedly connected to an insert (507). One end of the insert (507) is fixedly connected to a fastening screw (508).

3. The printed wiring board stack positioning and alignment apparatus of claim 2 wherein: The limiting frame (502) and the flipping frame (503) are in a flipping structure, and the flipping frame (503) and the pressing roller (504) are in a rotating structure.

4. The printed wiring board stack positioning and alignment apparatus of claim 2 wherein: The torsion springs (505) are symmetrically distributed at both ends of the flipping frame (503), and the slots (506) and the inserts (507) are in an embedded structure.

5. The printed wiring board stack positioning and alignment apparatus of claim 1 wherein: The anti-loosening structure (8) includes a connecting frame (801), an adjusting screw (802), a push plate (803), a reinforcing spring (804), and a side plate (805). The connecting frame (801) is fixedly connected to one side of the support frame (3). The adjusting screw (802) is threadedly connected to the inside of one side of the connecting frame (801). The push plate (803) is slidably connected to the inside of the connecting frame (801). The reinforcing spring (804) is fixedly connected to one side of the push plate (803). The side plates (805) are fixedly connected to both ends of the internal threaded frame (7).

6. The printed wiring board stack positioning and alignment apparatus of claim 5 wherein: The connecting frame (801) and the adjusting screw (802) are connected by a thread, and the adjusting screw (802) and the push plate (803) are connected by a rotating structure.

7. The printed wiring board stack positioning and alignment apparatus of claim 5 wherein: The connecting frame (801) and the push plate (803) have a sliding structure, and the reinforcing springs (804) are symmetrically distributed on one side of the push plate (803).

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