Automatic feeding device and automatic feeding system of PCB (Printed Circuit Board)

Abstract

The utility model relates to the field of automation equipment, and discloses an automatic feeding device and an automatic feeding system of a PCB (Printed Circuit Board). The automatic feeding device comprises a fixed support; the first moving frame is mounted on the fixed bracket in a sliding manner along the first direction; the second moving frame is slidably mounted on the first moving frame in the second direction; the first clamp and the second clamp are mounted on the second moving frame and are arranged at intervals in the first direction; the first direction is perpendicular to the second direction, and the first clamp and the second clamp are used for clamping the two ends of the PCB, so that the PCB is parallel to a plane formed by the first direction and the second direction. According to the utility model, when the first clamp and the second clamp clamp the PCB, only the edge (for example, the 5 mm position of the edge) of the PCB is clamped, and the first clamp and the second clamp do not directly contact with the surface circuit area of the PCB, so that pollution, tiny deformation or other physical damage caused by adsorption or clamping are avoided, and high quality of the PCB is ensured; the feeding mode reduces waiting time, full-automatic operation is achieved, and manual intervention is not needed.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, specifically to an automatic PCB board feeding device and an automatic feeding system. Background Technology

[0002] In existing automated PCB board feeding processes, robotic arms are typically used in conjunction with vacuum suction cups or clamps to transfer PCB boards from a conveyor belt to an overhead conveyor. For example, a robotic arm uses a vacuum suction cup to pick up a PCB board and place it on the overhead conveyor; or, in some cases, traditional mechanical clamps are used to directly hold the left and right ends or the top and bottom ends of the PCB board.

[0003] However, the existing material handling methods described above typically have the following drawbacks: First, the vacuum suction cups directly contact the PCB board surface, which may cause contamination or minor deformation at the suction points, affecting the PCB board quality and the effectiveness of subsequent processes. Second, the robotic arm can only handle one PCB board at a time. After placing one PCB board on the overhead conveyor, it is necessary to wait for it to be transported away before the next PCB board can be processed, resulting in low overall production efficiency. Third, during the clamping process, uneven or excessive pressure applied by the robotic arm or fixture can easily cause the PCB board to bend, deform, or even break. Fourth, a certain degree of human intervention is required, such as adjusting the position of the robotic arm or checking the condition of the PCB board, which not only increases labor costs but also introduces the risk of human error. Utility Model Content

[0004] In view of this, the present invention provides an automatic PCB board feeding device and an automatic feeding system to solve the problems of low PCB feeding efficiency and poor quality in related technologies.

[0005] In a first aspect, this utility model provides an automatic PCB board feeding device, comprising:

[0006] Fixed bracket;

[0007] The first movable frame is slidably mounted on the fixed bracket along a first direction;

[0008] The second movable frame is slidably mounted on the first movable frame along the second direction;

[0009] The first clamp and the second clamp are mounted on the second movable frame and arranged at intervals along the first direction;

[0010] Wherein, the first direction is perpendicular to the second direction, and the first clamp and the second clamp are respectively used to clamp the two ends of the PCB board so that the PCB board is parallel to the plane formed by the first direction and the second direction.

[0011] Beneficial effects: (1) Non-contact clamping to maintain PCB board quality: When clamping the PCB board, the first and second clamps only clamp the edge of the PCB board (e.g., 5mm from the edge) and do not directly contact the surface circuit area, thus avoiding contamination, minor deformation or other physical damage caused by adsorption or clamping, and ensuring the high quality of the PCB board.

[0012] (2) Improved production efficiency: By moving the PCB board away from the conveyor belt before loading, waiting time is reduced. The robotic arm can prepare the next PCB board while the overhead conveyor is processing the current one, significantly improving production efficiency. Furthermore, the loading process is fully automated and requires no manual intervention, reducing labor costs and the possibility of human error.

[0013] (3) Ensure the correct orientation of the PCB board: The design of the first and second clamps ensures that the PCB board remains parallel to the plane formed by the first and second directions throughout the entire handling process, avoiding problems caused by tilting or improper clamping, and enhancing the stability and safety of clamping.

[0014] In one optional embodiment, at least one of the first clamp and the second clamp is a clamping mechanism, the clamping mechanism including a first clamping member and a second clamping member, the first clamping member and the second clamping member being disposed opposite each other in a third direction and forming a clamping gap between them, at least one of the first clamping member and the second clamping member being extendable along the third direction, wherein the third direction is perpendicular to the plane formed by the first direction and the second direction.

[0015] Beneficial effects: The design of the clamping mechanism of this utility model allows the first clamping member and the second clamping member to be arranged opposite each other in the third direction (front-back direction), and the two clamping members operate by telescoping along the third direction. Therefore, in the first direction (left-right direction), there can be no obstacles on both sides of the clamping mechanism, thereby making the gap between two adjacent PCB boards very small.

[0016] In one optional embodiment, the second movable frame includes a first sliding arm and a second sliding arm spaced apart along the third direction, the first sliding arm and the second sliding arm being fixedly connected by a connector, the first clamping member being telescopically mounted on the first sliding arm, and the second clamping member being telescopically mounted on the second sliding arm.

[0017] The second movable frame is designed with an open structure at one end adjacent to the clamping mechanism to facilitate operation or material passage along the first direction.

[0018] Beneficial effects: The open structure design simplifies the operation process, especially when moving along the first direction (left and right), facilitating the entry and exit of PCB boards, reducing potential interference problems, and improving the smoothness and efficiency of operation. Simultaneously, the open structure also provides easy access to internal components for maintenance and repair, reducing the cost and complexity of routine maintenance. The fixedly connected first and second sliding arms enhance the structural stability of the entire second moving frame, ensuring that unnecessary shaking or displacement does not occur during clamping and handling, further guaranteeing the safety of the PCB board.

[0019] In one optional embodiment, the first clamp is a robotic gripper mechanism, and the second clamp is a clamping mechanism;

[0020] In the first direction, the second movable frame has a first end and a second end. The first clamp is mounted on the first end of the first sliding arm, and a first pair of clamping drive members are fixed on the second end of the first sliding arm. The driving part of the first pair of clamping drive members is connected to the first clamping member and is telescopic along the third direction. A second pair of clamping drive members are fixed on the second end of the second sliding arm. The driving part of the second pair of clamping drive members is connected to the second clamping member and is telescopic along the third direction.

[0021] The first end of the first sliding arm and the first end of the second sliding arm are fixedly connected by the connector, and the second end of the second moving frame is designed as an open structure to facilitate operation or material passage along the first direction.

[0022] Beneficial effects: The design of the first and second clamps not only ensures the stability and safety of the PCB board during handling, but also prevents any damage to the PCB board by precisely controlling the clamping force. Furthermore, this design allows the system to flexibly adapt to PCB boards of different thicknesses and sizes, increasing the application range and operational efficiency of the equipment. The open structure design simplifies the material flow path, further enhancing the flexibility and smoothness of the entire system.

[0023] In one optional embodiment, the first movable frame includes a third sliding arm and a fourth sliding arm arranged at intervals along the third direction, the third sliding arm and the fourth sliding arm being slidably connected to the fixed bracket respectively;

[0024] One of the first sliding arm and the third sliding arm is provided with a first slide rail extending along the second direction, and the other is provided with a first sliding member that slides in cooperation with the first slide rail;

[0025] One of the second sliding arm and the fourth sliding arm is provided with a second slide rail extending along the second direction, and the other is provided with a second sliding member that slides in cooperation with the second slide rail.

[0026] Beneficial Effects: The above structural design not only enhances the flexibility and adaptability of the entire automatic feeding device, but also improves operational efficiency and accuracy through precise multi-dimensional movement control. For example, when handling PCBs of different widths or lengths, the first moving frame can quickly adjust its position as needed, ensuring that the PCB is accurately delivered to the designated position each time. Furthermore, the design of the slide rails and sliding components makes the movement between various moving parts smoother, reduces mechanical wear, lowers maintenance costs, and ensures reliable long-term operation.

[0027] In one optional embodiment, the fixing bracket includes a first fixing arm and a second fixing arm; the first fixing arm and the second fixing arm are arranged at intervals along the third direction;

[0028] Wherein, one of the first fixed arm and the third sliding arm is provided with a third slide rail extending along the first direction, and the other is provided with a third sliding member that slides in cooperation with the third slide rail;

[0029] One of the second fixed arm and the fourth sliding arm is provided with a fourth slide rail extending along the first direction, and the other is provided with a fourth sliding member that slides in cooperation with the fourth slide rail.

[0030] Beneficial effects: Through such a slide rail and sliding component system, the first moving frame can achieve precise and stable horizontal movement between the first fixed arm and the second fixed arm, ensuring the positional accuracy of the PCB board throughout the handling process.

[0031] In one optional embodiment, the fixing bracket further includes a third fixing arm, wherein the first fixing arm and the third fixing arm are arranged at intervals along the second direction;

[0032] The third fixed arm is equipped with a first electric guide rail. A first linear drive component is fixed on the first electric slider of the first electric guide rail and can slide along the first direction. The first linear drive component is fixedly connected to the third sliding arm. The linear drive part of the first linear drive component is drivenly connected to the first sliding arm and can extend and retract along the second direction.

[0033] Beneficial effects: The first electric guide rail drives the body of the first linear drive to slide in the first direction. At this time, the body of the first linear drive drives the third sliding arm, which is fixedly connected to it, to slide in the first direction. At this time, in the first direction, the first moving frame will also slide along with the sliding of the third sliding arm. In this process, the linear drive part of the first linear drive can drive the first moving frame to slide further in the second direction, thereby realizing the sliding of the first moving frame in the first direction and the second direction at the same time.

[0034] In one alternative embodiment, at least one of the first clamp and the second clamp is slidably disposed along the first direction.

[0035] Beneficial effects: In this way, the first fixture can be flexibly adjusted in position according to actual needs to adapt to PCBs of different sizes and layout requirements, thereby increasing the application range and operational flexibility of the system.

[0036] In one optional embodiment, a second electric guide rail is mounted on the second movable frame, and one of the first clamp and the second clamp is fixed on the second electric slider of the second electric guide rail and is slidable along the first direction;

[0037] The second electric guide rail is equipped with a displacement sensor to determine the position of the first or second clamp.

[0038] Beneficial Effects: The above configuration is particularly suitable for the efficient processing of PCBs of various sizes, allowing the system to quickly adjust the position of the clamps according to different production needs without major modifications to the mechanical structure. For example, when processing wider PCBs, the clamps can slide outwards to increase the clamping distance; while when processing narrower PCBs, the clamps can slide inwards to decrease the clamping distance. Furthermore, the introduction of displacement sensors not only improves the accuracy of position control but also enhances the automation level of the entire system, reducing the need for manual intervention. By monitoring the clamp position in real time, the system can automatically adjust the clamping force and clamping position, ensuring consistency and reliability in every operation.

[0039] Secondly, this utility model also provides an automatic PCB board feeding system, comprising:

[0040] An automatic PCB board feeding device as described in the first aspect of the present invention;

[0041] A robotic arm is used to transport the PCB board into the automatic feeding device;

[0042] A suspended conveyor moves along the first direction and is equipped with a plurality of feeding clamps, the feeding clamps being used to clamp the PCB boards delivered from the automatic feeding device.

[0043] Beneficial effects: Significantly enhances the efficiency and precision of the entire production process. First, the coordinated operation of the robotic arm and automatic feeding device ensures a seamless transition from PCB board gripping to fixing. Second, the overhead conveyor design allows the system to handle continuous, streamlined production, increasing overall capacity. Furthermore, the introduction of a second motorized guide rail and displacement sensors allows the system to flexibly handle PCB boards of different sizes, expanding the equipment's application range. Finally, the modular design simplifies maintenance and repair processes, reduces the cost and complexity of daily maintenance, and ensures long-term reliable operation of the system. Attached Figure Description

[0044] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 This is one of the perspective views of the automatic feeding device according to an embodiment of the present utility model;

[0046] Figure 2 This is a second perspective view of the automatic feeding device according to an embodiment of the present utility model;

[0047] Figure 3 This is a top view of the automatic feeding device according to an embodiment of the present utility model;

[0048] Figure 4 This is a front view of the automatic feeding device according to an embodiment of the present utility model;

[0049] Figure 5 This is a side view of the automatic feeding device according to an embodiment of the present utility model;

[0050] Figure 6 This is a perspective view of a partial structure of the automatic feeding device of this utility model, consisting of the first fixed arm, the third fixed arm, the first sliding arm, and the third sliding arm.

[0051] Figure 7 This is one of the front views of a partial structure of the automatic feeding device of this utility model, consisting of the first fixed arm, the third fixed arm, the first sliding arm, and the third sliding arm.

[0052] Figure 8 This is a second front view of a partial structure of the automatic feeding device of this utility model, consisting of the first fixed arm, the third fixed arm, the first sliding arm, and the third sliding arm.

[0053] Figure 9This is an exploded view of a partial structure of the automatic feeding device of this utility model, consisting of the first fixed arm, the third fixed arm, the first sliding arm, and the third sliding arm.

[0054] Figure 10 This is a three-dimensional schematic diagram of a partial structure of the automatic feeding device of this utility model, consisting of a first fixed arm, a second fixed arm, a first sliding arm, a second sliding arm, a third sliding arm, and a fourth sliding arm.

[0055] Figure 11 This is an exploded view of a partial structure of the automatic feeding device of this utility model, consisting of a first fixed arm, a second fixed arm, a first sliding arm, a second sliding arm, a third sliding arm, and a fourth sliding arm.

[0056] Explanation of reference numerals in the attached figures:

[0057] 1. Fixed bracket; 11. First fixed arm; 12. Second fixed arm; 13. Third fixed arm; 2. First movable frame; 21. Third sliding arm; 22. Fourth sliding arm; 3. Second movable frame; 31. First sliding arm; 32. Second sliding arm; 33. Connector; 41. First clamp; 42. Second clamp; 421. First clamping member; 422. Second clamping member; 423. First clamping drive member; 424. Second clamping drive member; 51. First slide rail; 52. First sliding member; 53. Second slide rail; 54. Second sliding member; 55. Third slide rail; 56. Third sliding member; 57. Fourth slide rail; 58. Fourth sliding member; 6. First electric guide rail; 61. First electric slider; 62. First linear drive member; 621. Linear drive unit; 7. Second electric guide rail; 71. Second electric slider; 8. Displacement sensor; 9. Second linear drive member. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0059] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0060] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0061] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] The following description, with reference to the accompanying drawings, introduces an automatic PCB board feeding device and automatic feeding system provided by this utility model. It should be noted that the automatic feeding device of this utility model can be used for the process of transferring PCB boards from a robotic arm to a suspended conveyor.

[0063] like Figures 1 to 11 As shown, the automatic PCB board feeding device according to the first aspect embodiment of the present invention includes a fixed bracket 1, a first movable frame 2, a second movable frame 3, a first clamp 41, and a second clamp 42.

[0064] The first movable frame 2 is slidably mounted on the fixed bracket 1 along the first direction; the second movable frame 3 is slidably mounted on the first movable frame 2 along the second direction; the first clamp 41 and the second clamp 42 are mounted on the second movable frame 3 and are spaced apart along the first direction.

[0065] Wherein, the first direction is perpendicular to the second direction, and the first clamp 41 and the second clamp 42 are respectively used to clamp the two ends of the PCB board so that the PCB board is parallel to the plane formed by the first direction and the second direction.

[0066] like Figures 1 to 11 As shown, the following is a detailed description of the structure of the automatic PCB feeding device of this utility model:

[0067] The fixed bracket 1 serves as the fundamental support structure for the entire device, ensuring the stability and accuracy of all other components. It is understood that the fixed bracket 1 provides mounting points, allowing the first movable frame 2 to slide on it.

[0068] The first movable frame 2 is slidably mounted on the fixed bracket 1 along a first direction (e.g., transverse, i.e., left-right direction). The first movable frame 2 allows the overall device to be positioned and adjusted in one dimension to accommodate PCB boards in different locations and move them from the conveyor belt to the position of the overhead conveyor. The first movable frame 2 can move smoothly horizontally along the track on the fixed bracket 1 by means of an electric slide table or other drive mechanism.

[0069] The second movable frame 3 is slidably mounted on the first movable frame 2 along a second direction (e.g., vertical, i.e., up-down direction). The second movable frame 3 is responsible for vertical positioning and adjustment, and it can move up and down within the plane provided by the first movable frame 2 to lift the PCB board to a suitable height so that it can be gripped by the grippers of the overhead conveyor. Driving components such as lifting cylinders are used to push the second movable frame 3 up or down along its track.

[0070] The first clamp 41 and the second clamp 42 are specifically designed to securely clamp both ends of the PCB board, ensuring that the PCB board remains parallel to the plane formed by the first and second directions throughout the handling process. This ensures the correct orientation of the PCB board during transfer, preventing deformation or damage. Each clamp is equipped with a corresponding drive mechanism, such as a pneumatic system, to achieve clamping and releasing actions.

[0071] Furthermore, based on the above structure, the specific working process of the automatic feeding device of this utility model is as follows:

[0072] When the device is in the ready state, the first moving frame 2 is in the starting position, while the second moving frame 3 is in the lowest point, ready to receive new PCB boards from the conveyor belt. The robotic arm removes the PCB board from the conveyor belt and rotates it to a vertical position, then places one end of it in the first clamp 41 and the other end in the second clamp 42.

[0073] The first clamp 41 and the second clamp 42 work together to firmly clamp both ends of the PCB board. Driven by a drive mechanism (e.g., an electric guide rail), the first moving frame 2 moves away from the conveyor belt along a transverse track, making room for the next PCB board. The drive mechanism (e.g., a lifting cylinder) drives the second moving frame 3 to rise, raising the PCB board to a height accessible to the grippers of the overhead conveyor. Once the designated position is reached, the grippers of the overhead conveyor clamp the PCB board, while the first clamp 41 and the second clamp 42 of the automatic loading device release the PCB board, completing one loading process. Afterward, the second moving frame 3 descends back to its original position, and the first moving frame 2 also returns to its starting position, awaiting the processing of the next PCB board.

[0074] In existing automated PCB board feeding processes, robotic arms are typically used in conjunction with vacuum suction cups or clamps to transfer PCB boards from a conveyor belt to an overhead conveyor. For example, a robotic arm uses a vacuum suction cup to pick up a PCB board and place it on the overhead conveyor; or, in some cases, traditional mechanical clamps are used to directly hold the left and right ends or the top and bottom ends of the PCB board.

[0075] However, the existing material handling methods described above typically have the following drawbacks: First, the vacuum suction cups directly contact the PCB board surface, which may cause contamination or minor deformation at the suction points, affecting the PCB board quality and the effectiveness of subsequent processes. Second, the robotic arm can only handle one PCB board at a time. After placing one PCB board on the overhead conveyor, it is necessary to wait for it to be transported away before the next PCB board can be processed, resulting in low overall production efficiency. Third, during the clamping process, uneven or excessive pressure applied by the robotic arm or fixture can easily cause the PCB board to bend, deform, or even break. Fourth, a certain degree of human intervention is required, such as adjusting the position of the robotic arm or checking the condition of the PCB board, which not only increases labor costs but also introduces the risk of human error.

[0076] Therefore, in order to overcome the technical defects existing in the above-mentioned related technologies, this utility model provides an automatic PCB board feeding device, which can automatically transfer PCB boards from a robotic arm to a suspended conveyor, thereby realizing an automatic, safe and high-quality PCB board feeding process. Compared with related technologies, it has at least the following advantages:

[0077] (1) Non-contact clamping to maintain PCB board quality: When clamping the PCB board, the first clamp 41 and the second clamp 42 only clamp the edge of the PCB board (e.g., 5mm from the edge) and do not directly contact the surface circuit area, thus avoiding contamination, minor deformation or other physical damage caused by adsorption or clamping, and ensuring the high quality of the PCB board.

[0078] (2) Improved production efficiency: By moving the PCB board away from the conveyor belt before loading, waiting time is reduced. The robotic arm can prepare the next PCB board while the overhead conveyor is processing the current one, significantly improving production efficiency. Furthermore, the loading process is fully automated and requires no manual intervention, reducing labor costs and the possibility of human error.

[0079] (3) Ensure the correct orientation of the PCB board: The design of the first clamp 41 and the second clamp 42 ensures that the PCB board remains parallel to the plane formed by the first direction and the second direction throughout the entire handling process, avoiding problems caused by tilting or improper clamping, and enhancing the stability and safety of clamping.

[0080] For ease of description, the following text will use the first direction as left and right, the second direction as up and down, and the third direction as front and back as examples, without loss of generality.

[0081] like Figure 3 , Figure 10 and Figure 11 As shown, according to some embodiments of the present invention, at least one of the first clamp 41 and the second clamp 42 is a clamping mechanism. The clamping mechanism includes a first clamping member 421 and a second clamping member 422. The first clamping member 421 and the second clamping member 422 are arranged opposite to each other in a third direction and a clamping gap is formed between them. At least one of the first clamping member 421 and the second clamping member 422 is telescopically arranged along a third direction, wherein the third direction is perpendicular to the plane formed by the first direction and the second direction.

[0082] In this embodiment, the first clamping member 421 and the second clamping member 422 are arranged opposite each other in a third direction (e.g., the front-to-back direction), that is, they are arranged face to face, forming a clamping gap for clamping the PCB board. This clamping gap is a space specifically designed to accommodate the PCB board. When clamping is required, the two clamping members will move inward to reduce the gap, thereby firmly gripping the PCB board; when release is required, they will move outward to increase the gap, allowing the PCB board to be removed or taken over by other components.

[0083] At least one of the first clamping member 421 and the second clamping member 422 is capable of linear movement in a third direction (perpendicular to the plane formed by the first and second directions). The aforementioned telescopic design allows the clamping mechanism to adapt to PCBs of different thicknesses and can provide appropriate force during clamping, ensuring both firmness and preventing damage to the PCB.

[0084] It should be noted that the most important function of the clamping mechanism is to reduce the gap between two adjacent PCB boards. For ordinary robotic grippers, there are drive cylinders in the left and right directions, which means that the gap between the two PCB boards needs to be larger than the gap of the drive cylinder body. However, the clamping mechanism in this embodiment can be free of any obstacles on the left and right sides, so the gap between the two adjacent PCB boards can be controlled to be extremely small.

[0085] Specifically, in related technologies, ordinary robotic grippers typically include components such as drive cylinders, which occupy additional space, especially in the lateral direction. This forces a large gap to be maintained between two adjacent PCBs to avoid collisions or interference. In contrast, the clamping mechanism of this invention allows the first clamping member 421 and the second clamping member 422 to be positioned opposite each other in the third direction (front-back direction), and these two clamping members extend and retract along the third direction. Therefore, in the first direction (lateral direction), there can be no obstructions on either side of the clamping mechanism, allowing the gap between two adjacent PCBs to be controlled to be very small.

[0086] In this way, on the one hand, with a compact production line layout, reducing the gaps between PCBs means that more PCBs can be processed within the same physical space, improving the space utilization of the equipment. On the other hand, the closer arrangement of PCBs reduces the idle travel distance of conveyor belts and other handling equipment, helping to speed up the entire production process. Furthermore, for PCBs with different sizes and spacing requirements, the clamping mechanism can be flexibly adjusted according to specific needs to ensure optimal working conditions.

[0087] like Figure 3 , Figure 10 and Figure 11 As shown, according to some embodiments of the present invention, the second movable frame 3 includes a first sliding arm 31 and a second sliding arm 32 arranged at intervals along a third direction. The first sliding arm 31 and the second sliding arm 32 are fixedly connected by a connector 33. A first clamping member 421 is telescopically mounted on the first sliding arm 31, and a second clamping member 422 is telescopically mounted on the second sliding arm 32. One end of the second movable frame 3 adjacent to the clamping mechanism is designed as an open structure to facilitate operation or material passage along the first direction.

[0088] In this embodiment, the second movable frame 3 consists of two parallel sliding arms (first sliding arm 31 and second sliding arm 32), which are spaced apart along a third direction (front-back direction). As the main support structure for vertical movement, the second movable frame 3 ensures precise vertical movement of the PCB board.

[0089] The first sliding arm 31 is responsible for bearing and guiding the extension and retraction of the first clamping member 421. The second sliding arm 32 is responsible for bearing and guiding the extension and retraction of the second clamping member 422. In this embodiment, the two sliding arms are fixed together by high-strength bolts or welding to ensure the stability and rigidity of the overall structure.

[0090] The first clamping element 421 is mounted on the first sliding arm 31 and is driven by a cylinder to extend and retract forward and backward. The second clamping element 422 is also mounted on the second sliding arm 32 and is also driven by a cylinder to extend and retract forward and backward. In this way, the two clamping blocks can be precisely adjusted to accommodate PCBs of different thicknesses and can provide uniform pressure during clamping, avoiding damage to the PCB.

[0091] It should also be noted that one end of the second moving frame 3 is not closed, but designed as an open frame structure, allowing PCB boards to enter and exit smoothly and reducing interference during operation. This facilitates the feeding of PCB boards into the device by a robotic arm or conveyor belt, and also makes it easier for the grippers of the overhead conveyor to grasp the PCB boards, thus improving the overall operational efficiency of the system.

[0092] In summary, in this embodiment, the open structure design simplifies the operation process, especially when moving along the first direction (left-right direction), facilitating the entry and exit of the PCB board, reducing potential interference problems, and improving the smoothness and efficiency of operation. At the same time, the open structure also provides the benefit of easy access to internal components for maintenance and repair, reducing the cost and complexity of routine maintenance.

[0093] The fixed connection between the first sliding arm 31 and the second sliding arm 32 enhances the structural stability of the entire second moving frame 3, ensuring that no unnecessary shaking or displacement occurs during clamping and handling, further guaranteeing the safety of the PCB board. Furthermore, through its compact and efficient design, this embodiment can achieve more functions within a limited space, not only improving the space utilization of the equipment but also making the overall layout more compact and rational.

[0094] like Figure 3 , Figure 10 and Figure 11 As shown, in some specific embodiments of this utility model, the first clamp 41 is a robotic gripper mechanism, and the second clamp 42 is a clamping mechanism.

[0095] In the first direction, the second movable frame 3 has a first end and a second end. A first clamp 41 is mounted on the first end of the first sliding arm 31, and a first clamping drive 423 is fixed on the second end of the first sliding arm 31. The driving part of the first clamping drive 423 is connected to the first clamping member 421 and is telescopic along the third direction. A second clamping drive 424 is fixed on the second end of the second sliding arm 32. The driving part of the second clamping drive 424 is connected to the second clamping member 422 and is telescopic along the third direction. In this way, the two clamping blocks can be independently adjusted in the third direction to accurately adapt to PCB boards of different thicknesses, while ensuring uniform distribution of clamping force and avoiding damage to the PCB board.

[0096] The first sliding arm 31 and the second sliding arm 32 are arranged at intervals along a third direction and are fixedly connected by the connector 33, enhancing the rigidity and stability of the entire structure. Of particular note is the open design at the second end of the second moving frame 3. This not only reduces potential interference problems but also improves the system's flexibility and operational efficiency, especially important when handling continuous streamlined production. This open design simplifies the material flow path and facilitates operation along the first direction (left-right direction), thereby improving overall workflow.

[0097] Specifically, the working process of the first clamp 41 and the second clamp 42 is as follows:

[0098] The robotic arm first picks up the PCB board from the conveyor belt and rotates it to a vertical position. Then, the robotic arm places one end of the PCB board into the first clamp 41 mounted on the first end of the first sliding arm 31. The first clamp 41 securely holds one end of the PCB board in place by the robotic arm's clamping mechanism, ensuring its stability throughout the handling process. Simultaneously, the first pair of clamping drive members 423 (located at the second end of the first sliding arm 31) is activated, pushing the first clamping member 421 forward in a third direction (front-back direction). Similarly, the second pair of clamping drive members 424 (located at the second end of the second sliding arm 32) is also activated, pushing the second clamping member 422 forward in the same direction. The two clamping blocks work together to gradually reduce the clamping gap, ultimately firmly holding the other end of the PCB board.

[0099] After initial fixing, the electric slide table drives the first moving frame 2 laterally away from the conveyor belt, making room for the next PCB board. Then, the lifting cylinder drives the second moving frame 3 to rise, raising the PCB board to a height accessible to the grippers of the overhead conveyor. When the grippers of the overhead conveyor reach the designated position, they clamp the PCB board. At this point, the first clamp 41 of the automatic feeding device and the clamping mechanism release the PCB board, completing one feeding cycle. Finally, all components reset, ready to process the next PCB board.

[0100] In this process, the design of the first clamp 41 and the second clamp 42 not only ensures the stability and safety of the PCB board during handling, but also avoids any damage to the PCB board by precisely controlling the clamping force. Furthermore, this design allows the system to flexibly adapt to PCB boards of different thicknesses and sizes, increasing the application range and operational efficiency of the equipment. The open structure design simplifies the material flow path, further enhancing the flexibility and smoothness of the entire system.

[0101] like Figure 3 , Figure 10 and Figure 11 As shown, in some specific embodiments of this utility model, the first movable frame 2 includes a third sliding arm 21 and a fourth sliding arm 22 arranged at intervals along a third direction, and the third sliding arm 21 and the fourth sliding arm 22 are slidably connected to the fixed bracket 1 respectively. This design ensures that the first movable frame 2 can move smoothly back and forth in the horizontal direction (first direction), thereby accurately adjusting the lateral position of the PCB board.

[0102] One of the first sliding arm 31 and the third sliding arm 21 is provided with a first slide rail 51 extending along the second direction, and the other is provided with a first sliding member 52 that slides in cooperation with the first slide rail 51; one of the second sliding arm 32 and the fourth sliding arm 22 is provided with a second slide rail 53 extending along the second direction, and the other is provided with a second sliding member 54 that slides in cooperation with the second slide rail 53.

[0103] In this embodiment, to achieve stable vertical (second direction) movement, a slide rail and sliding member system is provided between the first sliding arm 31 and the third sliding arm 21, and between the second sliding arm 32 and the fourth sliding arm 22. For example, the third sliding arm 21 is provided with a first slide rail 51 extending in the vertical direction, while the first sliding arm 31 is provided with a first pulley (i.e., a first sliding member 52) that slides in cooperation with the first slide rail 51; similarly, the fourth sliding arm 22 is provided with a second slide rail 53 extending in the vertical direction, while the second sliding arm 32 is provided with a second pulley (i.e., a second sliding member 54) that slides in cooperation with it. This slide rail and sliding member configuration ensures high precision and stability during vertical movement, while reducing friction and extending the service life of the system.

[0104] In summary, the above structural design not only enhances the flexibility and adaptability of the entire automatic feeding device, but also improves operational efficiency and accuracy through precise multi-dimensional movement control. For example, when handling PCBs of different widths or lengths, the first moving frame 2 can quickly adjust its position as needed, ensuring that the PCB is accurately delivered to the designated position each time. Furthermore, the design of the slide rails and sliding components makes the movement between various moving parts smoother, reduces mechanical wear, lowers maintenance costs, and ensures reliable long-term operation.

[0105] like Figure 3 , Figure 10 and Figure 11 As shown, the fixing bracket 1 further includes a first fixing arm 11 and a second fixing arm 12; the first fixing arm 11 and the second fixing arm 12 are arranged at intervals along a third direction.

[0106] Among them, one of the first fixed arm 11 and the third sliding arm 21 is provided with a third slide rail 55 extending along the first direction, and the other is provided with a third sliding member 56 that slides with the third slide rail 55; one of the second fixed arm 12 and the fourth sliding arm 22 is provided with a fourth slide rail 57 extending along the first direction, and the other is provided with a fourth sliding member 58 that slides with the fourth slide rail 57.

[0107] In a specific embodiment of this utility model, the fixed bracket 1 includes a first fixed arm 11 and a second fixed arm 12 arranged at intervals along a third direction (front-back direction). This design not only enhances the stability of the entire system but also provides a precise sliding path for the first movable frame 2. Specifically, the first fixed arm 11 is provided with a third slide rail 55 extending in the left-right direction, and the third sliding arm 21 is provided with a third pulley (i.e., a third sliding member 56) that slides in cooperation with the third slide rail 55; similarly, the second fixed arm 12 is provided with a fourth slide rail 57 extending in the left-right direction, and the fourth sliding arm 22 is provided with a fourth pulley (i.e., a fourth sliding member 58) that slides in cooperation with it. Through such a slide rail and sliding member system, the first movable frame 2 can achieve precise and stable horizontal movement between the first fixed arm 11 and the second fixed arm 12, ensuring the positional accuracy of the PCB board throughout the handling process.

[0108] like Figures 5 to 9 As shown, the fixing bracket 1 further includes a third fixing arm 13, and the first fixing arm 11 and the third fixing arm 13 are arranged at intervals along the second direction.

[0109] The third fixed arm 13 is equipped with a first electric guide rail 6. The first electric slider 61 of the first electric guide rail 6 is fixed with a first linear drive member 62 and can slide along the first direction. The first linear drive member 62 is fixedly connected to the third sliding arm 21. The linear drive part 621 of the first linear drive member 62 is connected to the first sliding arm 31 and can extend and retract along the second direction.

[0110] It is understood that in this embodiment, the first electric guide rail 6 drives the body of the first linear drive member 62 to slide along the first direction. At this time, the body of the first linear drive member 62 drives the third sliding arm 21, which is fixedly connected to it, to slide along the first direction. At this time, the first movable frame 2 also slides along the third sliding arm 21 in the first direction. During this process, the linear drive part 621 of the first linear drive member 62 can drive the first movable frame 2 to slide further in the second direction, thereby simultaneously realizing the sliding of the first movable frame 2 in the first and second directions. In a specific implementation, a second linear drive member 9 is also provided between the second sliding arm 32 and the fourth sliding arm 22. The body of the second linear drive member 9 is fixed to one of the second sliding arm 32 and the fourth sliding arm 22, and the drive part of the second linear drive member 9 is connected to the other of the second sliding arm 32 and the fourth sliding arm 22. In this way, the first movable frame 2 can be driven to slide along the second direction by the cooperation of the first linear drive member 62 and the second linear drive member 9, thereby ensuring the stability of the sliding of the first movable frame 2.

[0111] According to some embodiments of the present invention, at least one of the first clamp 41 and the second clamp 42 is slidably disposed along a first direction.

[0112] like Figure 10 and Figure 11 As shown, in some specific embodiments, a second electric guide rail 7 is installed on the second movable frame 3. One of the first clamp 41 and the second clamp 42 is fixed to the second electric slider 71 of the second electric guide rail 7 and is slidable along a first direction. A displacement sensor 8 is installed on the second electric guide rail 7 to determine the position of the first clamp 41 or the second clamp 42.

[0113] It is understandable that, in order to further improve the flexibility and precision of PCB board processing, at least one of the first clamp 41 and the second clamp 42 is slidably configured along a first direction (left-right direction). For example, a second electric guide rail 7 is mounted on the first sliding arm 31, and the first clamp 41 is fixed to the second electric slider 71 on the guide rail. In this case, the first clamp 41 is a robotic gripper. In this way, the first clamp 41 can be flexibly adjusted in position according to actual needs to adapt to PCB boards of different sizes and layout requirements, thereby increasing the application range and operational flexibility of the system.

[0114] This configuration is particularly suitable for the efficient handling of PCBs of various sizes, allowing the system to quickly adjust the position of the clamps according to different production needs without requiring major modifications to the mechanical structure. For example, when handling wider PCBs, the clamps can slide outwards to increase the clamping distance; while when handling narrower PCBs, the clamps can slide inwards to decrease the clamping distance. This flexibility significantly enhances the adaptability of the equipment, enabling it to provide stable service in a variety of production and process environments.

[0115] In addition, a displacement sensor 8 is installed on the second electric guide rail 7 to accurately determine the position of the first clamp 41 or the second clamp 42. The introduction of the displacement sensor 8 not only improves the accuracy of position control but also enhances the automation level of the entire system, reducing the need for manual intervention. By monitoring the position of the clamps in real time, the system can automatically adjust the clamping force and clamping position, ensuring consistency and reliability in each operation.

[0116] Meanwhile, the application of displacement sensor 8 simplifies the maintenance and calibration process, reducing the cost and complexity of daily maintenance. Because displacement sensor 8 can provide real-time feedback on the fixture's position, any abnormalities can be detected and corrected promptly, ensuring the long-term reliable operation of the system.

[0117] The automatic PCB board feeding system according to the second aspect of the present invention includes the automatic PCB board feeding device according to the first aspect of the present invention, and further includes a robotic arm and a suspended conveyor.

[0118] The robotic arm is used to transport PCB boards into the automatic feeding device; the overhead conveyor moves along the first direction and is equipped with several feeding clamps, which are used to clamp the PCB boards delivered from the automatic feeding device.

[0119] The automatic feeding system according to this utility model significantly enhances the efficiency and precision of the entire production process. Firstly, the coordinated operation of the robotic arm and the automatic feeding device ensures a seamless connection between PCB board gripping and fixing. Secondly, the design of the overhead conveyor allows the system to handle continuous streamlined production, increasing overall capacity. Furthermore, by introducing a second electric guide rail 7 and a displacement sensor 8, the system can flexibly handle PCB boards of different specifications, expanding the equipment's application range. Finally, the modular design simplifies maintenance and repair processes, reduces the cost and complexity of daily maintenance, and ensures long-term reliable operation of the system.

[0120] The following describes a specific embodiment of the automatic feeding system of this utility model with reference to the accompanying drawings.

[0121] like Figures 1 to 11As shown, the automatic feeding system includes an automatic feeding device, a robotic arm, and an overhead conveyor. The automatic feeding device includes a fixed support 1, a first movable frame 2, a second movable frame 3, a first clamp 41, and a second clamp 42. The robotic arm is responsible for grabbing PCB boards from the conveyor belt and rotating them to a vertical position, then placing them into the first clamp 41 and the second clamp 42 of the automatic feeding device for initial fixation. The overhead conveyor moves along a first direction and is equipped with several feeding clamps used to grip the PCB boards fed out by the automatic feeding device.

[0122] The fixed support 1 includes a first fixed arm 11 and a second fixed arm 12 arranged at intervals along a third direction (front-back direction), and a third fixed arm 13 arranged at intervals from the first fixed arm 11 along a second direction (vertical direction). This three-layer structure significantly enhances the rigidity and stability of the system.

[0123] The first movable frame 2 consists of a third sliding arm 21 and a fourth sliding arm 22 arranged along a third direction. The third sliding arm 21 and the fourth sliding arm 22 are connected to the first fixed arm 11 and the second fixed arm 12 respectively through the third slide rail 55 / third sliding member 56 and the fourth slide rail 57 / fourth sliding member 58, ensuring the precise sliding of the first movable frame 2 in the horizontal direction.

[0124] The first clamp 41 is a robotic gripper, and the second clamp 42 is a clamping mechanism. The second movable frame 3 consists of a first sliding arm 31 and a second sliding arm 32 arranged along a third direction. A first clamping drive 423 and a second clamping drive 424 are provided between these two sliding arms to control the extension and retraction of the first clamping member 421 and the second clamping member 422 along a third direction, thereby achieving a firm clamping of the PCB board.

[0125] A first electric guide rail 6 is mounted on the third fixed arm 13, and a first electric slider 61 on it is fixed with a first linear drive 62 and can slide along a first direction. The first linear drive 62 is fixedly connected to the third sliding arm 21 and is transmitted to the first sliding arm 31 through a linear drive unit 621, realizing precise control of the first moving frame 2 in the vertical direction. A second linear drive 9 is also provided between the second sliding arm 32 and the fourth sliding arm 22 to enhance the sliding stability of the first moving frame 2 in the vertical direction. A second electric guide rail 7 is mounted on the second moving frame 3, and a first clamp 41 is fixed on the second electric slider 71 on this guide rail and can slide along a first direction. A displacement sensor 8 is mounted on the second electric guide rail 7 to monitor the position of the clamp in real time, ensuring consistency and reliability of each operation.

[0126] Furthermore, the specific workflow of the automatic feeding system of this utility model is as follows:

[0127] (1) Initial preparation: The first fixed arm 11, the second fixed arm 12 and the third fixed arm 13 of the fixed bracket 1 constitute the basic frame of the entire device, ensuring the stability and rigidity of the system. All components are in standby mode, ready to receive the PCB board.

[0128] (2) Robotic arm gripping PCB board: The robotic arm grips the PCB board from the conveyor belt and rotates it to a vertical position. Then, one end of the PCB board is placed on the first clamp 41 installed at the first end of the first sliding arm 31 for initial fixation. At this time, the first clamp 41 firmly fixes one end of the PCB board, ensuring its stability throughout the transportation process.

[0129] (3) Clamping mechanism clamps the PCB board: The first clamping drive 423 is located at the second end of the first sliding arm 31, pushing the first clamping member 421 forward along a third direction; the second clamping drive 424 is located at the second end of the second sliding arm 32, pushing the second clamping member 422 forward as well. The two clamping blocks work together to firmly clamp the other end of the PCB board, ensuring that the PCB board remains stable and is not damaged during the entire handling process.

[0130] (4) Horizontal movement adjustment: The first electric guide rail 6 drives the first electric slider 61 to move laterally along the first direction, so that the body of the first linear drive 62 drives the third sliding arm 21, which is fixedly connected to it, to slide along the first direction. Therefore, in the first direction, the first moving frame 2 will also slide along with the sliding of the third sliding arm 21, so that the PCB board is away from the conveyor belt, making room for the next PCB board.

[0131] (5) Vertical lifting of the PCB board: During the sliding of the first moving frame 2 along the first direction, the linear driving part 621 of the first linear drive member 62 can drive the first sliding arm 31 to extend and retract along the second direction (vertical direction), thereby realizing the sliding of the first moving frame 2 in the second direction. This allows the PCB board to be lifted to a height that the grippers of the overhead conveyor can reach while being moved horizontally.

[0132] (6) Cooperative drive increases stability: The second linear drive 9 between the second sliding arm 32 and the fourth sliding arm 22 works in conjunction with the first linear drive 62 to further enhance the sliding stability of the first moving frame 2 in the second direction and ensure the stability of the PCB board during the lifting process.

[0133] (7) Handover to the overhead conveyor: When the loading clamps of the overhead conveyor reach the designated position, they will clamp the PCB board. At this time, the first clamp 41 of the automatic loading device and the clamping mechanism release the PCB board, completing a complete loading process. All components are reset and ready to process the next PCB board.

[0134] (8) Real-time position monitoring: The displacement sensor 8 on the second electric guide rail 7 monitors the position of the first clamp 41 or the second clamp 42 in real time to ensure the consistency and reliability of each operation. Any abnormalities can be detected and corrected in a timely manner to ensure the long-term reliable operation of the system.

[0135] In summary, the automatic feeding system of this utility model has the following advantages:

[0136] First, by introducing the third fixed arm 13 and its first electric guide rail 6 and first linear drive component 62, the system achieves multi-dimensional high-precision movement control. The combination of the first electric guide rail 6 and the first linear drive component 62 makes the movement of the entire system smoother and more precise in both the horizontal and vertical directions, reduces mechanical wear, and extends the service life of the system.

[0137] Secondly, the design of the slide rails and sliding components not only improves operational efficiency and accuracy, but also allows the system to flexibly adapt to PCB boards of different widths, lengths and thicknesses, increasing the application range of the equipment.

[0138] Third, the multi-layered structure of the first fixed arm 11, the second fixed arm 12, and the third fixed arm 13 significantly enhances the rigidity and stability of the entire system, ensuring high performance even in complex operating environments. The synergistic effect of the first linear drive component 62 and the second linear drive component 9 further enhances the sliding stability of the first moving frame 2 in the vertical direction. The modular slide rail system, electric guide rail, and linear drive system simplify maintenance and repair processes, reducing the cost and complexity of daily maintenance.

[0139] In summary, this utility model's automatic PCB board feeding system, by integrating a robotic arm, an automatic feeding device, and a suspended conveyor, provides an efficient, stable, and flexible PCB board processing solution, significantly improving the efficiency and reliability of automated production. This design not only enhances operational efficiency and accuracy but also expands the equipment's application range and adaptability, offering a more reliable and intelligent solution for PCB board processing in automated production environments.

[0140] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An automatic PCB board feeding device, characterized in that, include: Fixed bracket (1); The first movable frame (2) is slidably mounted on the fixed bracket (1) along the first direction; The second movable frame (3) is slidably mounted on the first movable frame (2) along the second direction; The first clamp (41) and the second clamp (42) are mounted on the second movable frame (3) and are spaced apart along the first direction; Wherein, the first direction is perpendicular to the second direction, and the first clamp (41) and the second clamp (42) are respectively used to clamp the two ends of the PCB board so that the PCB board is parallel to the plane formed by the first direction and the second direction.

2. The automatic PCB board feeding device according to claim 1, characterized in that, At least one of the first clamp (41) and the second clamp (42) is a clamping mechanism, the clamping mechanism including a first clamping member (421) and a second clamping member (422), the first clamping member (421) and the second clamping member (422) are arranged opposite to each other in a third direction and a clamping gap is formed between them, at least one of the first clamping member (421) and the second clamping member (422) is extendable along the third direction, wherein the third direction is perpendicular to the plane formed by the first direction and the second direction.

3. The automatic PCB board feeding device according to claim 2, characterized in that, The second movable frame (3) includes a first sliding arm (31) and a second sliding arm (32) arranged at intervals along the third direction. The first sliding arm (31) and the second sliding arm (32) are fixedly connected by a connector (33). The first clamping member (421) is telescopically mounted on the first sliding arm (31), and the second clamping member (422) is telescopically mounted on the second sliding arm (32). The second movable frame (3) is designed with an open structure at one end adjacent to the clamping mechanism to facilitate operation or material passage in the first direction.

4. The automatic PCB board feeding device according to claim 3, characterized in that, The first clamp (41) is a robotic gripper mechanism, and the second clamp (42) is a clamping mechanism; In the first direction, the second movable frame (3) has a first end and a second end. The first clamp (41) is mounted on the first end of the first sliding arm (31), and a first pair of clamping drive members (423) is fixed on the second end of the first sliding arm (31). The drive part of the first pair of clamping drive members (423) is connected to the first clamping member (421) and is telescopic along the third direction. A second pair of clamping drive members (424) is fixed on the second end of the second sliding arm (32). The drive part of the second pair of clamping drive members (424) is connected to the second clamping member (422) and is telescopic along the third direction. The first end of the first sliding arm (31) and the first end of the second sliding arm (32) are fixedly connected by the connector (33), and the second end of the second moving frame (3) is designed as an open structure to facilitate operation or material passage along the first direction.

5. The automatic PCB board feeding device according to claim 3, characterized in that, The first movable frame (2) includes a third sliding arm (21) and a fourth sliding arm (22) arranged at intervals along the third direction, and the third sliding arm (21) and the fourth sliding arm (22) are respectively slidably connected to the fixed bracket (1); One of the first sliding arm (31) and the third sliding arm (21) is provided with a first slide rail (51) extending along the second direction, and the other is provided with a first sliding member (52) that slides in cooperation with the first slide rail (51); One of the second sliding arm (32) and the fourth sliding arm (22) is provided with a second slide rail (53) extending along the second direction, and the other is provided with a second sliding member (54) that slides in cooperation with the second slide rail (53).

6. The automatic PCB board feeding device according to claim 5, characterized in that, The fixed bracket (1) includes a first fixed arm (11) and a second fixed arm (12); the first fixed arm (11) and the second fixed arm (12) are arranged at intervals along the third direction; Among them, one of the first fixed arm (11) and the third sliding arm (21) is provided with a third slide rail (55) extending along the first direction, and the other is provided with a third sliding member (56) that slides with the third slide rail (55). One of the second fixed arm (12) and the fourth sliding arm (22) is provided with a fourth slide rail (57) extending along the first direction, and the other is provided with a fourth sliding member (58) that slides in cooperation with the fourth slide rail (57).

7. The automatic PCB board feeding device according to claim 6, characterized in that, The fixed bracket (1) further includes a third fixed arm (13), and the first fixed arm (11) and the third fixed arm (13) are arranged at intervals along the second direction; The third fixed arm (13) is equipped with a first electric guide rail (6), and a first linear drive member (62) is fixed on the first electric slider (61) of the first electric guide rail (6) and can slide along the first direction. The first linear drive member (62) is fixedly connected to the third sliding arm (21), and the linear drive part (621) of the first linear drive member (62) is connected to the first sliding arm (31) and can extend and retract along the second direction.

8. The automatic PCB board feeding device according to any one of claims 1 to 7, characterized in that, At least one of the first clamp (41) and the second clamp (42) is slidably disposed along the first direction.

9. The automatic PCB board feeding device according to claim 8, characterized in that, A second electric guide rail (7) is installed on the second movable frame (3). One of the first clamp (41) and the second clamp (42) is fixed on the second electric slider (71) of the second electric guide rail (7) and can slide along the first direction. The second electric guide rail (7) is equipped with a displacement sensor (8) to determine the position of the first clamp (41) or the second clamp (42).

10. An automatic PCB board feeding system, characterized in that, include: An automatic PCB board feeding device as described in any one of claims 1 to 9; A robotic arm is used to transport the PCB board into the automatic feeding device; A suspended conveyor moves along the first direction and is equipped with a plurality of feeding clamps, the feeding clamps being used to clamp the PCB boards delivered from the automatic feeding device.

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