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

Abstract

The invention relates to the field of automation equipment, and discloses an automatic feeding device and an automatic feeding system for PCBs. 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 invention, when the first clamp and the second clamp clamp the PCB, only the edge (for example, the position 5 mm away from the edge) of the PCB is clamped, the first clamp and the second clamp do not make direct contact with the surface circuit area of the PCB, pollution, tiny deformation or other physical damage caused by adsorption or clamping are avoided, and the high quality of the PCB is ensured; meanwhile, due to the feeding mode, waiting time is shortened, full-automatic operation is achieved, and manual intervention is not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, and in particular to an automatic feeding device and an automatic feeding system for PCB boards. Background Art

[0002] In the related art, in the existing PCB board automatic loading process, a robot is usually used in conjunction with a vacuum suction cup or a clamp to complete the transfer of the PCB board from the conveyor belt to the hanging conveyor. For example, the robot absorbs the PCB board through the vacuum suction cup and places it on the hanging conveyor; or, in some cases, a traditional mechanical clamp is used to directly clamp the left and right ends or the upper and lower ends of the PCB board.

[0003] However, the above-mentioned existing loading methods usually have the following disadvantages: First, the vacuum suction cup directly contacts the surface of the PCB board, which may cause contamination or slight deformation at the adsorption point of the board surface, affecting the quality of the PCB board and the effect of subsequent processes. Second, the robot can only handle one PCB board at a time. After placing a PCB board on the hanging conveyor, it is necessary to wait for the PCB board to be conveyed away before operating the next PCB board, resulting in low overall production efficiency. Third, during the clamping process, due to uneven or excessive pressure applied by the robot or fixture, the PCB board is easily bent, deformed or even damaged. Fourth, a certain degree of manual participation is required, such as adjusting the position of the robot or checking the status of the PCB board, which not only increases labor costs, but also introduces the risk of human error. Summary of the invention

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

[0005] In a first aspect, the present invention provides an automatic feeding device for a PCB board, comprising:

[0006] Fixed bracket;

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

[0008] A second mobile frame is slidably mounted on the first mobile frame along a second direction;

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

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

[0011] Beneficial effects: (1) Non-contact clamping to maintain the quality of the PCB board: When clamping the PCB board, the first clamp and the second clamp only clamp the edge of the PCB board (for example, 5 mm from the edge) and do not directly contact the surface circuit area, thus avoiding contamination, slight 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 away from the conveyor before loading, waiting time is reduced. The robot can prepare the next PCB while the hanging conveyor is processing the current one, greatly improving production efficiency. The loading process is fully automated and does not require human intervention, which reduces labor costs and the possibility of human error.

[0013] (3) Ensure that the PCB board is in the correct posture: The design of the first clamp and the second clamp ensures that the PCB board always remains parallel to the plane formed by the first direction and the second direction during the entire handling process, avoiding problems caused by tilting or improper clamping, and enhancing the stability and safety of clamping.

[0014] In an optional embodiment, at least one of the first clamp and the second clamp is a clamping mechanism, which includes a first clamping member and a second clamping member, the first clamping member and the second clamping member are arranged opposite to each other in a third direction and a clamping gap is formed therebetween, and at least one of the first clamping member and the second clamping member is telescopically arranged along the third direction, wherein the third direction is perpendicular to a plane formed by the first direction and the second direction.

[0015] Beneficial effects: The design of the clamping mechanism of the present invention allows the first clamping member and the second clamping member to be arranged relative to each other in the third direction (front-rear direction), and the two clamping members work 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, so that the gap between two adjacent PCB boards can be controlled to be very small.

[0016] In an optional embodiment, the second mobile frame includes a first sliding arm and a second sliding arm arranged at intervals along the third direction, the first sliding arm and the second sliding arm are fixedly connected via a connecting member, the first clamping member is telescopically mounted on the first sliding arm, and the second clamping member is telescopically mounted on the second sliding arm;

[0017] Wherein, one end of the second movable frame adjacent to the clamping mechanism is designed as an open structure to facilitate operation or passage of materials 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 direction), it is convenient for the PCB board to enter and exit, reduces potential interference problems, and improves the fluency and efficiency of operation. At the same time, the open structure also brings the benefit of easy access to internal components for maintenance and repair, reducing the cost and complexity of daily maintenance. The fixedly connected first sliding arm and second sliding arm enhance the structural stability of the entire second mobile frame, ensuring that no unnecessary shaking or deviation occurs during the clamping and handling process, and further ensuring the safety of the PCB board.

[0019] In an optional embodiment, the first clamp is a manipulator clamp mechanism, and the second clamp is a clamping mechanism;

[0020] Wherein, in the first direction, the second movable frame has a first end and a second end, the first clamp is installed on the first end of the first sliding arm, a first pair of clamp driving members is fixed on the second end of the first sliding arm, the driving parts of the first pair of clamp driving members are connected to the first clamping member and are retractable along the third direction; a second pair of clamp driving members is fixed on the second end of the second sliding arm, the driving parts of the second pair of clamp driving members are connected to the second clamping member and are retractable 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 via the connecting member, and the second end of the second movable frame is designed as an open structure to facilitate operation or passage of materials along the first direction.

[0022] Beneficial effects: The design of the first clamp and the second clamp not only ensures the stability and safety of the PCB board during handling, but also avoids any damage to the PCB board by accurately controlling the clamping force. In addition, this design allows the system to flexibly adapt to PCB boards of different thicknesses and sizes, increasing the application range and operating efficiency of the equipment. The open structure design simplifies the material passing path, further improving the flexibility and smooth operation of the entire system.

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

[0024] One of the first sliding arm and the third sliding arm is provided with a first sliding rail extending along the second direction, and the other is provided with a first sliding member slidably matched with the first sliding rail;

[0025] One of the second sliding arm and the fourth sliding arm is provided with a second sliding rail extending along the second direction, and the other is provided with a second sliding member slidably matched with the second sliding rail.

[0026] Beneficial effects: The above structural design not only enhances the flexibility and adaptability of the entire automatic feeding device, but also improves the operating efficiency and accuracy through precise multi-dimensional movement control. For example, when processing PCB boards of different widths or lengths, the first mobile rack can quickly adjust its position as needed to ensure that the PCB boards can be accurately delivered to the designated position every time. In addition, the design of the slide rails and slides makes the movement between the various moving parts smoother, reduces mechanical wear, reduces maintenance costs, and ensures reliability for long-term operation.

[0027] In an 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 sliding rail extending along the first direction, and the other is provided with a third sliding member slidably matched with the third sliding rail;

[0029] One of the second fixed arm and the fourth sliding arm is provided with a fourth sliding rail extending along the first direction, and the other is provided with a fourth sliding member slidably matched with the fourth sliding rail.

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

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

[0032] A first electric guide rail is installed on the third fixed arm, a first linear drive member is fixed on the first electric slider of the first electric guide rail and can slide along the first direction, and the first linear drive member is fixedly connected to the third sliding arm, and the linear drive portion of the first linear drive member is transmission-connected to the first sliding arm and can be retracted along the second direction.

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

[0034] In an optional 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 position of the first fixture can be flexibly adjusted 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.

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

[0037] Wherein, a displacement sensor is installed on the second electric guide rail to determine the moving position of the first clamp or the second clamp.

[0038] Beneficial effects: The above configuration is particularly suitable for efficient processing of PCB boards of various specifications, which allows the system to quickly adjust the position of the fixture according to different production requirements without making major changes to the mechanical structure. For example, when processing wider PCB boards, the fixture can slide outward to increase the clamping spacing; when processing narrower PCB boards, the fixture can slide inward to reduce the clamping spacing. In addition, the introduction of displacement sensors not only improves the accuracy of position control, but also enhances the automation of the entire system and reduces the need for manual intervention. By monitoring the position of the fixture in real time, the system can automatically adjust the clamping force and clamping position to ensure consistency and reliability of each operation.

[0039] In a second aspect, the present invention further provides an automatic feeding system for a PCB board, comprising:

[0040] The automatic feeding device for PCB boards as described in the first aspect of the embodiment of the present invention;

[0041] A robot arm, used for conveying the PCB board to the automatic feeding device;

[0042] The hanging conveyor moves along the first direction and is provided with a plurality of loading clamps, wherein the loading clamps are used to clamp the PCB boards sent out from the automatic loading device.

[0043] Beneficial effects: The efficiency and accuracy of the entire production process have been significantly enhanced. First, the coordinated work of the manipulator and the automatic loading device ensures a seamless connection from grabbing to fixing of the PCB board; second, the design of the hanging conveyor allows the system to handle continuous streamlined production, improving overall production capacity. In addition, by introducing the second electric guide rail and displacement sensor, the system can flexibly cope with PCB boards of different specifications, increasing the application range of the equipment. Finally, the modular design simplifies the maintenance and repair process, reduces the cost and complexity of daily maintenance, and ensures the long-term reliable operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 This is one of the three-dimensional schematic diagrams of the automatic loading device according to an embodiment of the present invention;

[0046] Figure 2 This is a second three-dimensional schematic diagram of the automatic feeding device according to an embodiment of the present invention;

[0047] Figure 3 A top view of an automatic loading device according to an embodiment of the present invention;

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

[0049] Figure 5 It is a side view of the automatic loading device according to an embodiment of the present invention;

[0050] Figure 6 It is a three-dimensional schematic diagram of a partial structure composed of a first fixed arm, a third fixed arm, a first sliding arm and a third sliding arm of an automatic loading device according to an embodiment of the present invention;

[0051] Figure 7 It is one of the front views of the partial structure composed of the first fixed arm, the third fixed arm, the first sliding arm and the third sliding arm of the automatic feeding device according to the embodiment of the present invention;

[0052] Figure 8 The second front view of the partial structure composed of the first fixed arm, the third fixed arm, the first sliding arm and the third sliding arm of the automatic loading device according to the embodiment of the present invention;

[0053] Fig. 9It is an exploded schematic diagram of a partial structure composed of a first fixed arm, a third fixed arm, a first sliding arm and a third sliding arm of an automatic feeding device according to an embodiment of the present invention;

[0054] Fig.10 It is a three-dimensional schematic diagram of a partial structure composed 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 of an automatic loading device according to an embodiment of the present invention;

[0055] Fig.11 It is an exploded schematic diagram of a local structure composed 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 of an automatic loading device according to an embodiment of the present invention.

[0056] Description of reference numerals:

[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. Connecting member; 41. First clamp; 42. Second clamp; 421. First clamping member; 422. Second clamping member; 423. First pair of clamping driving member; 424. Second pair of clamping driving 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 driving member; 621. Linear driving unit; 7. Second electric guide rail; 71. Second electric slider; 8. Displacement sensor; 9. Second linear driving member. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0059] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0060] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0061] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] An automatic loading device and an automatic loading system for PCB boards provided by the present invention are described below with reference to the accompanying drawings. It should be noted that the automatic loading device of the present invention can be used in the process of transferring PCB boards from a robot to a hanging conveyor.

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

[0064] The first movable frame 2 is slidably mounted on the fixed support 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] The first direction is perpendicular to the second direction, and the first clamp 41 and the second clamp 42 are respectively used to clamp 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 specific structure of the automatic PCB feeding device of the present invention is introduced below:

[0067] The fixed support 1 is the basic supporting structure of the whole device, and the fixed support 1 ensures the stability and accuracy of all other components. It can be understood that the fixed support 1 provides a mounting point so that the first mobile frame 2 can slide thereon.

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

[0069] The second mobile frame 3 is slidably mounted on the first mobile frame 2 along a second direction (e.g., vertical direction, i.e., up and down direction). The second mobile frame 3 is responsible for positioning and adjusting in the vertical direction, and can move up and down in the plane provided by the first mobile frame 2, so as to lift the PCB board to a suitable height so that it can be grasped by the hanging conveyor claw. Driving elements such as jacking cylinders are used to push the second mobile frame 3 up or down along its track.

[0070] The first clamp 41 and the second clamp 42 are specially designed to safely clamp the two ends of the PCB board, ensuring that the PCB board remains parallel to the plane formed by the first direction and the second direction during the entire handling process. In this way, the posture of the PCB board during the transfer process can be guaranteed to be correct to avoid deformation or damage. Each clamp is equipped with a corresponding driving mechanism, such as a pneumatic system, to achieve clamping and releasing actions.

[0071] Further, based on the above structure, the specific working process of the automatic feeding device of the present invention is as follows:

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

[0073] The first clamp 41 and the second clamp 42 work together to firmly clamp the two ends of the PCB board. Driven by a driving member (such as an electric guide rail), the first mobile frame 2 moves away from the conveyor belt along the lateral movement track to make room for the next PCB board. The driving member (such as a lifting cylinder) drives the second mobile frame 3 to rise and lift the PCB board to a height that the clamping claws of the hanging conveyor can reach. Once the specified position is reached, the clamping claws of the hanging conveyor will clamp the PCB board, and the first clamp 41 and the second clamp 42 of the automatic feeding device will release the PCB board, completing a complete feeding process. Afterwards, the second mobile frame 3 descends back to the original position, and the first mobile frame 2 also returns to the starting position, waiting to process the next PCB board.

[0074] In the related art, in the existing PCB board automatic loading process, a robot is usually used in conjunction with a vacuum suction cup or a clamp to complete the transfer of the PCB board from the conveyor belt to the hanging conveyor. For example, the robot absorbs the PCB board through the vacuum suction cup and places it on the hanging conveyor; or, in some cases, a traditional mechanical clamp is used to directly clamp the left and right ends or the upper and lower ends of the PCB board.

[0075] However, the above-mentioned existing loading methods usually have the following disadvantages: First, the vacuum suction cup directly contacts the surface of the PCB board, which may cause contamination or slight deformation at the adsorption point of the board surface, affecting the quality of the PCB board and the effect of subsequent processes. Second, the robot can only handle one PCB board at a time. After placing a PCB board on the hanging conveyor, it is necessary to wait for the PCB board to be conveyed away before operating the next PCB board, resulting in low overall production efficiency. Third, during the clamping process, due to uneven or excessive pressure applied by the robot or fixture, the PCB board is easily bent, deformed or even damaged. Fourth, a certain degree of manual participation is required, such as adjusting the position of the robot or checking the status of the PCB board, which not only increases labor costs, but also introduces the risk of human error.

[0076] Therefore, in order to solve the technical defects existing in the above-mentioned related technologies, the present invention provides an automatic feeding device for PCB boards, which can automatically transfer PCB boards from a manipulator to a hanging conveyor, thereby realizing an automatic, safe and high-quality feeding process of PCB boards. Compared with the related technologies, the present invention has at least the following advantages:

[0077] (1) Non-contact clamping to maintain the quality of the PCB board: When clamping the PCB board, the first clamp 41 and the second clamp 42 only clamp the edge of the PCB board (for example, 5 mm from the edge) and do not directly contact the surface circuit area, thereby avoiding contamination, slight 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 away from the conveyor before loading, waiting time is reduced. The robot can prepare the next PCB while the hanging conveyor is processing the current one, greatly improving production efficiency. The loading process is fully automated and does not require human intervention, which reduces labor costs and the possibility of human error.

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

[0080] For the convenience of description, the following description will take the first direction as the left-right direction, the second direction as the up-down direction, and the third direction as the front-back direction as an example without loss of generality.

[0081] like Figure 3 , Fig.10 and Fig.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, which includes a first clamping member 421 and a second clamping member 422, which are arranged opposite to each other in a third direction and a clamping gap is formed therebetween, and at least one of the first clamping member 421 and the second clamping member 422 is telescopically arranged along the third direction, wherein the third direction is perpendicular to a 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 relative to each other in a third direction (for example, the front-to-back direction), that is, the two are arranged face to face, forming a clamping gap for clamping the PCB board. The clamping gap is a space specially designed to accommodate the PCB board. When clamping is required, the two clamping members will move inward to narrow the gap, thereby tightly grasping 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 can perform linear motion in a third direction (perpendicular to the plane formed by the first and second directions). The above-mentioned retractable design enables the clamping mechanism to adapt to PCB boards of different thicknesses and can provide appropriate force during the clamping process, ensuring firmness without damaging the PCB board.

[0084] It should be pointed out that the most important function of the clamping mechanism is to reduce the gap between two adjacent PCB boards. For ordinary manipulator clamps, there are driving cylinders in the left and right directions, so that the gap between the two PCB boards needs to be larger than the gap of the driving cylinder body. However, the clamping mechanism in this embodiment can have no 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 the related art, ordinary manipulator clamps usually include components such as drive cylinders, which occupy additional space, especially in the left-right direction, which forces a large gap to be maintained between two adjacent PCB boards to avoid collision or interference. In contrast, the design of the clamping mechanism of the present invention allows the first clamping member 421 and the second clamping member 422 to be relatively arranged in the third direction (front-back direction), and the two clamping members work telescopically along the third direction. Therefore, in the first direction (left-right direction), there can be no obstacles on both sides of the clamping mechanism, so that the gap between the two adjacent PCB boards can be controlled to be very small.

[0086] In this way, on the one hand, when the production line layout is compact, reducing the gap between PCB boards means that more PCB boards can be processed in the same physical space, improving the space utilization of the equipment. On the other hand, the more closely arranged PCB boards reduce the empty moving distance of conveyor belts and other handling equipment, which helps to speed up the entire production process. In addition, for PCB boards of different sizes and spacing requirements, the clamping mechanism can be flexibly adjusted according to specific needs to ensure the best working state.

[0087] like Figure 3 , Fig.10 and Fig.11 As shown, according to some embodiments of the present invention, the second mobile 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 connecting member 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. Among them, one end of the second mobile frame 3 adjacent to the clamping mechanism is designed as an open structure to facilitate operation or material passing along the first direction.

[0088] In this embodiment, the second mobile frame 3 is composed of two parallel sliding arms (a first sliding arm 31 and a second sliding arm 32), which are arranged at intervals along the third direction (front-back direction). The second mobile frame 3 serves as the main supporting structure for vertical movement, and can ensure the precise movement of the PCB board in the vertical direction.

[0089] The first sliding arm 31 is responsible for carrying and guiding the telescopic movement of the first clamping member 421. The second sliding arm 32 is responsible for carrying and guiding the telescopic movement 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 piece 421 is mounted on the first sliding arm 31 and is driven by a cylinder to extend forward and backward. The second clamping piece 422 is also mounted on the second sliding arm 32 and is also driven by a cylinder to extend forward and backward. In this way, the two clamping blocks can accurately adjust their positions to accommodate PCB boards of different thicknesses, and can provide uniform pressure during clamping to avoid damage to the PCB board.

[0091] It should also be noted that one end of the second mobile frame 3 is not closed, but is designed as an open frame structure, allowing the PCB board to enter and exit smoothly, reducing interference during operation. In this way, it is convenient for the manipulator or conveyor belt to send the PCB board into the device, and it is also convenient for the hanging conveyor claw to grab the PCB board, thereby improving the operating efficiency of the entire 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), it is convenient for the PCB to enter and exit, reduces potential interference problems, and improves the smoothness and efficiency of the operation. At the same time, the open structure also brings the benefit of easy access to internal components for maintenance and repair, reducing the cost and complexity of daily maintenance.

[0093] The first sliding arm 31 and the second sliding arm 32 that are fixedly connected enhance the structural stability of the entire second mobile frame 3, ensuring that no unnecessary shaking or deviation occurs during the clamping and handling process, and further ensuring the safety of the PCB board. In addition, through a compact and efficient design, this embodiment can achieve more functions in a limited space, which not only improves the space utilization of the equipment, but also makes the overall layout more compact and reasonable.

[0094] like Figure 3 , Fig.10 and Fig.11 As shown, in some specific embodiments of the present invention, the first clamp 41 is a manipulator clamp mechanism, and the second clamp 42 is a clamping mechanism.

[0095] In the first direction, the second moving 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, a first pair of clamping driving members 423 are fixed on the second end of the first sliding arm 31, a driving part of the first pair of clamping driving members 423 is connected to the first clamping member 421 and can be extended and retracted along the third direction; a second pair of clamping driving members 424 are fixed on the second end of the second sliding arm 32, a driving part of the second pair of clamping driving members 424 is connected to the second clamping member 422 and can be extended and retracted along the third direction. In this way, it is ensured that the two clamping blocks can adjust their positions independently in the third direction, accurately adapt to PCB boards of different thicknesses, and at the same time ensure that the clamping force is evenly distributed to avoid damage to the PCB board.

[0096] The first sliding arm 31 and the second sliding arm 32 are arranged at intervals along the third direction and fixedly connected by the connecting member 33, thereby enhancing the rigidity and stability of the entire structure. It is particularly important to note that the second end of the second mobile frame 3 is designed as an open structure, which not only reduces potential interference problems, but also improves the flexibility and operating efficiency of the system, which is particularly important when dealing with continuous streamlined production. This open design simplifies the material passing path and facilitates operation along the first direction (left and right direction), thereby improving the overall working fluency.

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

[0098] The manipulator first grabs the PCB board from the conveyor belt and rotates it to a vertical state. Then, the manipulator places one end of the PCB board on the first clamp 41 installed at the first end of the first sliding arm 31. The first clamp 41 firmly fixes one end of the PCB board through the manipulator clamp mechanism to ensure that it remains stable during the entire handling process. At the same time, the first pair of clamping driving members 423 (located at the second end of the first sliding arm 31) are started to push the first clamping member 421 to move forward along the third direction (front and back direction). Similarly, the second pair of clamping driving members 424 (located at the second end of the second sliding arm 32) are also started to push the second clamping member 422 to move forward in the same direction. The two clamping blocks work together to gradually reduce the clamping gap and finally firmly clamp the other end of the PCB board.

[0099] After the initial fixation is completed, the electric slide drives the first mobile frame 2 to move away from the conveyor belt in the lateral direction to make room for the next PCB board. Subsequently, the lifting cylinder drives the second mobile frame 3 to rise and lift the PCB board to a height that the clamping claws of the hanging conveyor can reach. When the clamping claws of the hanging conveyor reach the specified position, it clamps the PCB board. At this time, the first clamp 41 of the automatic feeding device and the clamping mechanism release the PCB board, completing a complete feeding process. Finally, all components are reset and 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 the handling process, but also avoids any damage to the PCB board by accurately controlling the clamping force. In addition, this design allows the system to flexibly adapt to PCB boards of different thicknesses and sizes, increasing the application range and operating efficiency of the equipment. The open structure design simplifies the material passing path, further improving the flexibility and smooth operation of the entire system.

[0101] like Figure 3 , Fig.10 and Fig.11 As shown, in some specific implementations of the present invention, the first mobile 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. This design ensures that the first mobile frame 2 can move back and forth smoothly 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 sliding rail 51 extending along the second direction, and the other is provided with a first sliding member 52 slidably matched with the first sliding rail 51; one of the second sliding arm 32 and the fourth sliding arm 22 is provided with a second sliding rail 53 extending along the second direction, and the other is provided with a second sliding member 54 slidably matched with the second sliding rail 53.

[0103] In this embodiment, in order to achieve stable movement in the vertical direction (second direction), a slide rail and a sliding member system are 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 up-down direction, and the first sliding arm 31 is provided with a first pulley (i.e., the first sliding member 52) that slides with the first slide rail 51; similarly, the fourth sliding arm 22 is provided with a second slide rail 53 extending in the up-down direction, and the second sliding arm 32 is provided with a second pulley (i.e., the second sliding member 54) that slides with the second slide rail 53. Such a configuration of slide rails and sliding members 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 the operating efficiency and accuracy through precise multi-dimensional movement control. For example, when processing PCB boards of different widths or lengths, the first mobile frame 2 can quickly adjust its position as needed to ensure that the PCB boards can be accurately delivered to the designated position every time. In addition, the design of the slide rails and sliding parts makes the movement between the various moving parts smoother, reduces mechanical wear, reduces maintenance costs, and ensures the reliability of long-term operation.

[0105] like Figure 3 , Fig.10 and Fig.11 As shown, further, the fixing bracket 1 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 the third direction.

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

[0107] In a specific embodiment of the present invention, 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 mobile 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 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 with the fourth slide rail 57. Through such a slide rail and sliding member system, the first mobile frame 2 can achieve precise and stable horizontal movement between the first fixed arm 11 and the second fixed arm 12, ensuring the position accuracy of the PCB board during the entire handling process.

[0108] like Figures 5 to 9 As shown, further, 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] A first electric guide rail 6 is installed on the third fixed arm 13, 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, and the first linear drive member 62 is fixedly connected to the third sliding arm 21, and a linear drive portion 621 of the first linear drive member 62 is transmission-connected to the first sliding arm 31 and can be extended and retracted along the second direction.

[0110] It can be 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 fixedly connected thereto to slide along the first direction. At this time, in the first direction, the first movable frame 2 will also slide with the sliding of the third sliding arm 21. In this process, the linear drive portion 621 of the first linear drive member 62 can drive the first movable frame 2 to further slide along the second direction, thereby realizing the sliding of the first movable frame 2 in the first direction and the second direction at the same time. In a specific implementation, a second linear drive member 9 is further 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 driving portion 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 linear drive member 62 and the second linear drive member 9 can cooperate to drive the first movable frame 2 to slide along the second direction, 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 the first direction.

[0112] like Fig.10 and Fig.11 As shown, in some specific embodiments, a second electric guide rail 7 is installed on the second moving frame 3, and 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. 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 can be understood that in order to further improve the flexibility and accuracy of PCB board processing, at least one of the first clamp 41 and the second clamp 42 can be slidably arranged along the first direction (left-right direction). For example, a second electric guide rail 7 is installed on the first sliding arm 31, and the second electric slider 71 on the guide rail is fixed with the first clamp 41. In this case, the first clamp 41 is a manipulator clamp. In this way, the first clamp 41 can flexibly adjust its 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] The above configuration is particularly suitable for efficient processing of PCB boards of various specifications, which allows the system to quickly adjust the position of the fixture according to different production requirements without making major changes to the mechanical structure. For example, when processing wider PCB boards, the fixture can slide outward to increase the clamping spacing; when processing narrower PCB boards, the fixture can slide inward to reduce the clamping spacing. This flexibility significantly improves 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 of the entire system and reduces the need for manual intervention. By monitoring the position of the clamp in real time, the system can automatically adjust the clamping force and clamping position to ensure the consistency and reliability of each operation.

[0116] At the same time, the application of displacement sensor 8 simplifies the maintenance and calibration process, reducing the cost and complexity of daily maintenance. Since the displacement sensor 8 can provide real-time feedback on the position information of the fixture, any abnormal situation can be discovered and corrected in time, ensuring the long-term reliable operation of the system.

[0117] The automatic feeding system for PCB boards according to the second embodiment of the present invention comprises the automatic feeding device for PCB boards according to the first embodiment of the present invention, and further comprises a manipulator and a hanging conveyor.

[0118] The manipulator is used to transport the PCB board to the automatic feeding device; the hanging conveyor moves along the first direction and is provided with a plurality of feeding clamps, and the feeding clamps are used to clamp the PCB board sent out from the automatic feeding device.

[0119] The automatic feeding system according to the embodiment of the present invention significantly enhances the efficiency and accuracy of the entire production process. First, the coordinated work of the manipulator and the automatic feeding device ensures the seamless connection of the PCB board from grabbing to fixing; secondly, the design of the hanging conveyor allows the system to handle continuous streamlined production, thereby improving the overall production capacity. In addition, by introducing the second electric guide rail 7 and the displacement sensor 8, the system can flexibly cope with PCB boards of different specifications, thereby increasing the application range of the equipment. Finally, the modular design simplifies the maintenance and overhaul process, reduces the cost and complexity of daily maintenance, and ensures the long-term reliable operation of the system.

[0120] A specific embodiment of the automatic feeding system of the present invention is described below with reference to the accompanying drawings.

[0121] like Figures 1 to 11As shown, the automatic feeding system includes an automatic feeding device, a manipulator and a hanging conveyor. The automatic feeding device includes a fixed bracket 1, a first mobile frame 2, a second mobile frame 3, a first clamp 41 and a second clamp 42. The manipulator is responsible for grabbing the PCB board from the conveyor belt and rotating it to a vertical state, and then placing it in the first clamp 41 and the second clamp 42 of the automatic feeding device for preliminary fixation. The hanging conveyor moves along a first direction and is provided with a plurality of feeding clamps, which are used to clamp the PCB board sent out from the automatic feeding device.

[0122] The fixing bracket 1 comprises a first fixing arm 11 and a second fixing arm 12 arranged in a third direction (front-rear direction) and a third fixing arm 13 arranged in a second direction (vertical direction) and in a spaced relationship with the first fixing arm 11. This three-layer structure significantly enhances the rigidity and stability of the system.

[0123] The first mobile frame 2 is composed of a third sliding arm 21 and a fourth sliding arm 22 arranged along the 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 through the third slide rail 55 / third sliding member 56 and the fourth slide rail 57 / fourth sliding member 58, respectively, to ensure the precise sliding of the first mobile frame 2 in the horizontal direction.

[0124] The first clamp 41 is a manipulator clamp, and the second clamp 42 is a clamping mechanism. The second mobile frame 3 is composed of a first sliding arm 31 and a second sliding arm 32 arranged along the third direction. A first clamping driving member 423 and a second clamping driving member 424 are arranged between the two sliding arms to control the first clamping member 421 and the second clamping member 422 to extend and retract along the third direction to achieve a firm clamping of the PCB board.

[0125] The third fixed arm 13 is provided with a first electric guide rail 6, on which a first electric slider 61 is fixed with a first linear drive member 62 and is capable of sliding in a first direction. The first linear drive member 62 is fixedly connected to the third sliding arm 21, and is transmission-connected to the first sliding arm 31 through a linear drive portion 621, thereby realizing precise control of the first movable frame 2 in the vertical direction. A second linear drive member 9 is also provided between the second sliding arm 32 and the fourth sliding arm 22, thereby enhancing the sliding stability of the first movable frame 2 in the vertical direction. A second electric guide rail 7 is provided on the second movable frame 3, on which a second electric slider 71 is fixed with a first clamp 41 and is capable of sliding in a first direction. A displacement sensor 8 is provided on the second electric guide rail 7, which is used to monitor the position of the clamp in real time to ensure the consistency and reliability of each operation.

[0126] Furthermore, the specific working process of the automatic feeding system of the present invention is as follows:

[0127] (1) Initial preparation: The first fixing arm 11, the second fixing arm 12 and the third fixing arm 13 of the fixing bracket 1 constitute the basic framework of the entire device, ensuring the stability and rigidity of the system. Each component is in a standby state, ready to receive the PCB board.

[0128] (2) The robot grabs the PCB board: The robot grabs the PCB board from the conveyor belt and rotates it to a vertical state, and then places one end of the PCB board on the first clamp 41 installed at the first end of the first sliding arm 31 for preliminary fixation. At this time, the first clamp 41 firmly fixes one end of the PCB board to ensure that it remains stable during the entire handling process.

[0129] (3) The clamping mechanism clamps the PCB board: the first pair of clamping driving members 423 are located at the second end of the first sliding arm 31, pushing the first clamping member 421 to move forward along the third direction; the second pair of clamping driving members 424 are located at the second end of the second sliding arm 32, pushing the second clamping member 422 to move 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 to adjust position: The first electric guide rail 6 drives the first electric slider 61 to move horizontally along the first direction, so that the body of the first linear drive member 62 drives the third sliding arm 21 fixedly connected thereto 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) Vertically lifting the PCB board: When the first mobile frame 2 slides in the first direction, the linear driving portion 621 of the first linear driving member 62 can drive the first sliding arm 31 to extend and retract in the second direction (vertical direction), thereby achieving the sliding of the first mobile frame 2 in the second direction. This allows the PCB board to be lifted to a height that can be reached by the clamping claws of the suspension conveyor while being moved horizontally.

[0132] (6) Collaborative drive increases stability: The second linear drive member 9 between the second sliding arm 32 and the fourth sliding arm 22 cooperates with the first linear drive member 62 to further enhance the sliding stability of the first mobile frame 2 in the second direction, thereby ensuring the stability of the PCB board during the lifting process.

[0133] (7) Handover to the hanging conveyor: When the loading clamps of the hanging conveyor reach the designated position, they 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 fixture 41 or the second fixture 42 in real time to ensure the consistency and reliability of each operation. Any abnormal situation can be discovered and corrected in time to ensure the long-term reliable operation of the system.

[0135] In summary, the automatic feeding system of the present invention has the following advantages:

[0136] First, by introducing the third fixed arm 13 and the first electric guide rail 6 and the first linear drive 62 thereon, the system realizes multi-dimensional high-precision movement control. The combination of the first electric guide rail 6 and the first linear drive 62 makes the entire system move more smoothly and accurately in the horizontal and vertical directions, reduces mechanical wear, and prolongs the service life of the system.

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

[0138] Third, the multi-layer 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 synergy of the first linear drive 62 and the second linear drive 9 further enhances the sliding stability of the first mobile frame 2 in the vertical direction. The modular slide rail system, electric guide rail and linear drive system simplify the maintenance and overhaul process, reducing the cost and complexity of daily maintenance.

[0139] In summary, the PCB board automatic feeding system of the present invention provides an efficient, stable and flexible PCB board processing solution by integrating a manipulator, an automatic feeding device and a hanging conveyor, which significantly improves the efficiency and reliability of automated production. This design not only improves the operating efficiency and accuracy, but also increases the application range and adaptability of the equipment, providing a more reliable and intelligent solution for PCB board processing in an automated production environment.

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

Claims

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

2. The automatic feeding device for PCB boards according to claim 1, characterized in that: At least one of the first clamp (41) and the second clamp (42) is a clamping mechanism, which 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 relative to each other in a third direction and a clamping gap is formed therebetween, and at least one of the first clamping member (421) and the second clamping member (422) is telescopically arranged along the third direction, wherein the third direction is perpendicular to a plane formed by the first direction and the second direction.

3. The automatic feeding device for PCB boards according to claim 2, characterized in that: The second movable frame (3) comprises a first sliding arm (31) and a second sliding arm (32) which are arranged at intervals along the third direction, the first sliding arm (31) and the second sliding arm (32) are fixedly connected via a connecting member (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); Wherein, 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.

4. The automatic feeding device for PCB boards according to claim 3 is characterized in that: The first clamp (41) is a manipulator clamp mechanism, and the second clamp (42) is a clamping mechanism; Wherein, in the first direction, the second movable frame (3) has a first end and a second end, the first end of the first sliding arm (31) is mounted with the first clamp (41), the second end of the first sliding arm (31) is fixed with a first pair of clamp driving members (423), the driving portion of the first pair of clamp driving members (423) is connected to the first clamping member (421) and is retractable along the third direction; the second end of the second sliding arm (32) is fixed with a second pair of clamp driving members (424), the driving portion of the second pair of clamp driving members (424) is connected to the second clamping member (422) and is retractable 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 via the connecting member (33), and the second end of the second movable frame (3) is designed as an open structure to facilitate operation or passage of materials along the first direction.

5. The automatic feeding device for PCB boards according to claim 3, characterized in that: The first movable frame (2) comprises 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 frame (1); One of the first sliding arm (31) and the third sliding arm (21) is provided with a first sliding rail (51) extending along the second direction, and the other is provided with a first sliding member (52) slidably matched with the first sliding rail (51); One of the second sliding arm (32) and the fourth sliding arm (22) is provided with a second sliding rail (53) extending along the second direction, and the other is provided with a second sliding member (54) slidably matched with the second sliding rail (53).

6. The automatic feeding device for PCB boards according to claim 5, characterized in that: The fixing bracket (1) comprises 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 the third direction; Wherein, one of the first fixed arm (11) and the third sliding arm (21) is provided with a third sliding rail (55) extending along the first direction, and the other is provided with a third sliding member (56) slidably matched with the third sliding rail (55); One of the second fixed arm (12) and the fourth sliding arm (22) is provided with a fourth sliding rail (57) extending along the first direction, and the other is provided with a fourth sliding member (58) slidably matched with the fourth sliding rail (57).

7. The automatic feeding device for PCB boards according to claim 6, characterized in that: The fixing bracket (1) further comprises 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; A first electric guide rail (6) is installed on the third fixed arm (13); a first linear drive member (62) is fixed on a first electric slider (61) of the first electric guide rail (6) and is slidable along the first direction; the first linear drive member (62) is fixedly connected to the third sliding arm (21); a linear drive portion (621) of the first linear drive member (62) is transmission-connected to the first sliding arm (31) and is retractable along the second direction.

8. The automatic feeding device for PCB boards 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 arranged along the first direction.

9. The automatic feeding device for PCB boards according to claim 8, characterized in that: A second electric guide rail (7) is installed on the second moving frame (3); one of the first clamp (41) and the second clamp (42) is fixed on a second electric slide block (71) of the second electric guide rail (7) and is slidable along the first direction; Wherein, a displacement sensor (8) is installed on the second electric guide rail (7) for determining the moving position of the first clamp (41) or the second clamp (42).

10. An automatic feeding system for PCB boards, characterized in that: include: The automatic feeding device for PCB boards as claimed in any one of claims 1 to 9; A robot arm, used for conveying the PCB board to the automatic feeding device; The hanging conveyor moves along the first direction and is provided with a plurality of loading clamps, wherein the loading clamps are used to clamp the PCB boards sent out from the automatic loading device.

Images