A circuit board feeding device with a bidirectional material taking structure and a method for using the same

Abstract

The application provides a circuit board feeding device with a bidirectional material taking structure and a use method thereof. The device comprises a bearing assembly rack, a board placing box, a board taking gripper, a board loading platform, a board alignment pressing block and a board output gripper. The circuit board feeding device realizes the continuous operation ability of alternating material taking from two sides of the box through the layout of the two board placing boxes and the two taking grippers, greatly reduces the waiting time of the equipment, improves the feeding efficiency, and ensures the high precision and stability of the taking and transferring process through the lifting and transverse moving assembly and the longitudinal transferring assembly. The cooperation of the board loading platform and the board alignment pressing block realizes the accurate positioning of the circuit board. The double action of vacuum adsorption and mechanical pressing ensures that each circuit board can be accurately aligned in the predetermined direction. The lifting and longitudinal moving assembly enables the output gripper to have multi-dimensional movement ability, which can flexibly adapt to the interfaces of different height downstream equipment, and completes the smooth and accurate output of the circuit board.

Description

TECHNICAL FIELD

[0001] The present application relates to integrated circuit production equipment, in particular to a circuit board feeding device with a bidirectional material taking structure and a use method thereof. BACKGROUND

[0002] Patent document CN210029353U discloses a circuit board conveying device, which comprises a control device, a roller coating device, a clamping device, a telescopic device and a lifting device. The roller coating device can perform coating work on the circuit board. The control device can control the clamping device to clamp the circuit board. When the clamping device clamps the circuit board, the control device can control the lifting device to act, so that the clamping device moves the clamped circuit board in the longitudinal direction. When the clamped circuit board is taken away by other transfer equipment, the control device controls the telescopic device and the lifting device to act, so that the clamping device retracts and moves downward to a position adjacent to the roller coating device. However, this conveying device is a single-function auxiliary device for coating process, and the design of the single gripper causes a natural bottleneck in production efficiency. In addition, it lacks precise positioning capability and must rely on external equipment to complete the work cycle, so the versatility and independence are poor. Therefore, it is necessary to optimize the structure to overcome the above-mentioned defects. SUMMARY

[0003] The purpose of the present application is to provide a circuit board feeding device with a bidirectional material taking structure and a use method thereof.

[0004] The technical scheme adopted by the present application to solve the technical problems is:

[0005] A circuit board feeding device with a bidirectional material taking structure, comprising a bearing assembly rack, the bearing assembly rack has an assembly space therein, and further comprising:

[0006] A pair of board placing boxes are provided, each board placing box is installed in the bearing assembly rack and arranged in the transverse direction, and has a placing space inside for vertically stacking circuit boards;

[0007] A pair of board taking grippers are provided, each board taking gripper is installed in the bearing assembly rack through a lifting and transverse moving assembly and located between the board placing boxes. The board taking gripper can translate in the transverse direction and vertically lift between the board placing boxes, and can take out the circuit board in the board placing box in the transverse direction;

[0008] A plate carrying platform is installed in the bearing assembly frame by the longitudinal conveying assembly and corresponds to the plate taking gripper position. The circuit board is conveyed into the plate carrying platform by the plate taking gripper. The circuit board is positioned by the plate carrying platform. The plate carrying platform is moved longitudinally by the longitudinal conveying assembly.

[0009] A plate alignment pressing block is installed in the longitudinal conveying assembly by the longitudinal pressing assembly and cooperates with the plate carrying platform. The circuit board in the plate carrying platform is pressed by the plate alignment pressing block to align the direction.

[0010] A plate output gripper is installed in the lifting and horizontal moving assembly by the lifting and longitudinal moving assembly. The plate output gripper can move horizontally and vertically with the lifting and horizontal moving assembly and can move longitudinally and vertically independently in the lifting and horizontal moving assembly. The circuit board in the plate carrying platform is outputted by the plate output gripper.

[0011] Specifically, the lifting and horizontal moving assembly comprises:

[0012] A horizontal conveying carrier is installed in the bearing assembly frame and arranged horizontally.

[0013] A lifting conveying carrier is arranged vertically. The lifting conveying carrier is installed in the horizontal conveying carrier by the horizontal sliding block guide rail structure and cooperates with the horizontal conveying carrier by the horizontal screw nut structure. The lifting conveying carrier is moved horizontally in the horizontal conveying carrier by the horizontal screw nut structure.

[0014] A gripper assembly carrier is installed in the lifting conveying carrier by the vertical sliding block guide rail structure and cooperates with the lifting conveying carrier by the vertical screw nut structure. The plate taking gripper is installed in the gripper assembly carrier. The gripper assembly carrier is moved vertically by the vertical screw nut structure.

[0015] Each plate taking gripper extends downward and is arranged at the two ends of the gripper assembly carrier. The plate taking gripper is connected to the gripper assembly carrier by the horizontal telescopic cylinder with opposite directions. The plate taking gripper is telescoped by the horizontal telescopic cylinder.

[0016] The longitudinal conveying assembly comprises:

[0017] A longitudinal conveying carrier is installed in the bearing assembly frame and arranged longitudinally. The plate carrying platform is installed in the longitudinal conveying carrier by the longitudinal sliding block guide rail structure and cooperates with the longitudinal conveying carrier by the longitudinal screw nut structure. The plate carrying platform is moved longitudinally in the longitudinal conveying carrier by the longitudinal screw nut structure.

[0018] The plate carrying platform is communicated with a vacuum device through a pipeline, and can adsorb and position the circuit board carried thereby.

[0019] The longitudinal pressing assembly comprises:

[0020] A longitudinal pressing cylinder, a cylinder body of the longitudinal pressing cylinder is installed in the longitudinal conveying frame, a piston rod end thereof is engaged with the plate positioning block, and the longitudinal conveying frame is parallel to each other, the plate positioning block is moved by the longitudinal pressing cylinder, the outer end of the circuit board on the plate carrying platform is pressed by the plate positioning block, the inner end thereof is engaged with the plate positioning end plate, and the circuit board is aligned in a predetermined direction.

[0021] The lifting and longitudinal moving assembly comprises:

[0022] A primary lifting cylinder, the primary lifting cylinder is installed in the lifting and conveying frame, and is arranged in a vertical direction;

[0023] A secondary lifting cylinder, the secondary lifting cylinder is installed in the secondary lifting cylinder, and is arranged in a vertical direction, and is moved in a vertical direction by the primary lifting cylinder;

[0024] A longitudinal conveying cylinder, the longitudinal conveying cylinder is installed in the lifting and conveying frame through a vertical sliding block guide rail structure, is arranged in a longitudinal direction, is engaged with the piston rod end of the secondary lifting cylinder, and the plate output gripper is installed in the piston rod end of the longitudinal conveying cylinder, the longitudinal conveying cylinder is moved in a vertical direction by the primary lifting cylinder and the secondary lifting cylinder, and the plate output gripper is moved in a longitudinal direction by the longitudinal conveying cylinder.

[0025] The use method of the circuit board feeding device comprises:

[0026] The operator loads two stacked circuit boards into the left and right plate placing box bodies respectively, the plate carrying platform is moved to the center line between the two material boxes by the longitudinal conveying assembly, and the height thereof is matched with the feeding height of the plate taking gripper, the plate positioning block is in a retracted state under the driving of the longitudinal pressing cylinder, and the plate output gripper is lifted to a high position to avoid interfering with the movement of other components.

[0027] The horizontal screw-nut structure drives the whole lifting transfer carriage to move left along the horizontal transfer carriage until the side plate piece installed on the gripper assembly carriage takes the gripper precision aligns with the center of the side magazine, the vertical screw-nut structure starts to drive the gripper assembly carriage to descend with the plate piece taking gripper, the plate piece taking gripper will descend to the preset material taking height, the material taking height gradually decreases with the decrease of the plate pieces in the magazine, after reaching the position, the plate piece taking gripper of the side acts, the end of the suction cup generates negative pressure to suck the top layer of the circuit board, the horizontal telescopic cylinder of the driving gripper retracts to horizontally pull out the circuit board from the placing space of the magazine stably;

[0028] The vertical screw-nut structure lifts the gripper assembly carriage to make the circuit board safely higher than the edge of the magazine, the horizontal screw-nut structure drives the whole assembly to move right to move the plate piece taking gripper holding the circuit board to the position above the waiting plate piece supporting platform, the plate piece taking gripper again descends until the circuit board is placed on the surface of the plate piece supporting platform, the vacuum suction channel on the plate piece supporting platform starts to preliminarily suck and fix the circuit board through negative pressure to prevent it from sliding, the plate piece taking gripper releases vacuum and releases the plate piece, the horizontal telescopic cylinder resets for the next material taking, the lifting and horizontal moving assembly ascends with the plate piece taking gripper and moves away to make space for subsequent operation;

[0029] The piston rod of the longitudinal pressing cylinder extends to push the plate piece alignment pressing block to move forward along the direction parallel to the longitudinal transfer carriage, the pressing block contacts and presses the side of the circuit board away from the supporting alignment end plate, and applies a stable pushing force, under the action of the pushing force, the circuit board will produce a slight sliding on the vacuum-sucked platform until the other side of the circuit board completely matches the supporting alignment end plate firmly installed on the plate piece supporting platform, the position of the circuit board is accurately corrected, and the edge of the circuit board is parallel to the supporting alignment end plate, and the predetermined direction requirement is reached, after the alignment is completed, the longitudinal pressing cylinder retracts to drive the plate piece alignment pressing block to retreat to the original position;

[0030] The primary lifting cylinder acts to drive the whole secondary lifting cylinder and longitudinal transfer cylinder assembly to descend until the plate piece output gripper approaches the circuit board but has not contacted, the secondary lifting cylinder acts to drive the longitudinal transfer cylinder and the plate piece output gripper to perform the final height adjustment until the suction cup on the plate piece output gripper completely contacts the surface of the circuit board which has completed alignment, the plate piece output gripper sucks the circuit board, and then the vacuum suction of the plate piece supporting platform is released;

[0031] The secondary lifting cylinder acts to lift the plate output gripper to separate the circuit board from the carrier, and then the primary lifting cylinder acts to lift the whole assembly to a safe height, and then the longitudinal transfer cylinder acts to push the plate output gripper to move outward along the longitudinal direction to stably transport the circuit board to the next device outside the system, after the plate output gripper releases the vacuum and the circuit board is placed down, the longitudinal transfer cylinder retracts, and the primary lifting cylinder and the secondary lifting cylinder cooperate to lift and return the plate output gripper to the initial standby position, ready for the next transport.

[0032] The present application has the advantages of:

[0033] The circuit board feeding device realizes continuous operation ability of alternating feeding from the two side boxes through the layout of a pair of plate placing box bodies and two taking grippers, greatly reduces the equipment waiting time, improves the feeding efficiency, and the lifting and transverse moving assembly and the longitudinal transfer assembly ensure the high precision and stability of the feeding and transferring process, and the cooperation of the plate carrier platform and the plate alignment pressing block realizes the accurate positioning of the circuit board, and the double action of vacuum adsorption and mechanical pressing ensures that each circuit board can be accurately aligned in the predetermined direction, and the lifting and longitudinal moving assembly enables the output gripper to have multi-dimensional movement ability, can flexibly adapt to different height downstream equipment interfaces, and completes stable and accurate circuit board output. BRIEF DESCRIPTION OF DRAWINGS

[0034] Fig. 1 is one of the front structure schematic diagrams of the circuit board feeding device with bidirectional feeding structure provided by the present application;

[0035] Fig. 2 is another front structure schematic diagram of the feeding device;

[0036] Fig. 3 is one of the back structure schematic diagrams of the feeding device;

[0037] Fig. 4 is another back structure schematic diagram of the feeding device.

[0038] In the figure, the bearing assembly rack is 100, the plate placing box body is 210, the plate taking gripper is 220, the plate carrier platform is 230, the carrier alignment end plate is 231, the plate alignment pressing block is 240, the plate output gripper is 250, the transverse transfer carrier is 310, the lifting and transfer carrier is 320, the gripper assembly carrier is 330, the longitudinal transfer carrier is 400, the longitudinal pressing cylinder is 500, the primary lifting cylinder is 610, the secondary lifting cylinder is 620, and the longitudinal transfer cylinder is 630. DETAILED DESCRIPTION

[0039] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0040] As shown in Figs. 1 to 4 The circuit board feeding device with bidirectional feeding structure provided by the present application comprises a bearing assembly rack 100, a board placing box 210, a board taking gripper 220, a board loading platform 230, a board alignment pressing block 240 and a board output gripper 250.

[0041] The bearing assembly rack 100 is a basic support structure of the whole device, which has an assembly space. The board placing box 210 is provided in a pair, each board placing box 210 is installed in the bearing assembly rack 100, and is arranged in the transverse direction, and has a placing space for vertically stacking circuit boards inside. The side of each board placing box 210 facing the board taking gripper 220 is open, and the inner wall is provided with a positioning slot, each positioning slot extends in the transverse direction and is arranged in the vertical direction, and each circuit board is inserted into the positioning slot, so that the board taking gripper 220 can take out the circuit board from the side of the placing box.

[0042] The board taking gripper 220 is provided in a pair, each board taking gripper 220 is installed in the bearing assembly rack 100 through a lifting and transverse moving assembly, and is located between the board placing boxes 210. The board taking gripper 220 can move in the transverse direction and vertically lift between the board placing boxes 210, and can take out the circuit board in the board placing box 210 in the transverse direction.

[0043] The lifting and horizontal moving assembly includes horizontal moving carriers 310, lifting and moving carriers 320 and gripper assembly carriers 330. The horizontal moving carriers 310 are installed in the bearing assembly frame 100 and arranged horizontally. The lifting and moving carriers 320 are arranged vertically, which are installed in the horizontal moving carriers 310 through horizontal sliding block guide structures and cooperated with the horizontal moving carriers 310 through horizontal screw nut structures, and the lifting and moving carriers 320 are driven to move horizontally in the horizontal moving carriers 310 by the horizontal screw nut structures. The gripper assembly carriers 330 are installed in the lifting and moving carriers 320 through vertical sliding block guide structures and cooperated with the lifting and moving carriers 320 through vertical screw nut structures, and the plate taking grippers 220 are installed in the gripper assembly carriers 330, which are driven to move vertically by the vertical screw nut structures. Each plate taking gripper 220 extends downward and arranged at both ends of the gripper assembly carriers 330, which are engaged with the gripper assembly carriers 330 by horizontal extension cylinders in opposite directions and driven to extend and retract by the horizontal extension cylinders. The end of each plate taking gripper 220 is provided with a vacuum chuck group for reliably taking the circuit board.

[0044] The material taking height of the plate taking gripper 220 is detected in real time by a photoelectric sensor or a laser ranging sensor (not shown in the figure) installed on the gripper assembly carrier 330 or the plate taking gripper 220. The sensor continuously detects the upper surface height of the top layer circuit board in the plate placing box 210 and feeds back the position signal to the control system (such as PLC) of the device. The control system dynamically calculates and outputs control instructions to the vertical screw nut structure according to the feedback signal, drives the gripper assembly carrier 330 to carry the plate taking gripper 220 to descend, and makes the gripper accurately stop at the position maintaining the best material taking distance with the current top layer circuit board. Therefore, the material taking height can automatically and continuously descend with the actual reduction of the stacking height of the material box, and can adapt to material boxes with different initial stacking heights.

[0045] The plate bearing platform 230 is installed in the bearing assembly frame 100 by the longitudinal moving assembly and corresponds to the position of the plate taking gripper 220, the circuit board is moved to the plate bearing platform 230 by the plate taking gripper 220, the circuit board is limited by the plate bearing platform 230, and the plate bearing platform 230 is driven to move longitudinally by the longitudinal moving assembly.

[0046] The longitudinal transferring assembly comprises a longitudinal transferring carrier 400 installed in the bearing assembly rack 100 and arranged longitudinally, the board supporting platform 230 is installed in the longitudinal transferring carrier 400 through a longitudinal sliding guide structure and cooperates with the longitudinal transferring carrier 400 through a longitudinal screw nut structure, and the board supporting platform 230 is driven by the longitudinal screw nut structure to move longitudinally in the longitudinal transferring carrier 400. The board supporting platform 230 is communicated with the vacuum equipment through a pipeline, can adsorb and position the circuit board carried thereby, is provided with a precise positioning groove on the surface, is provided with a supporting alignment end plate 231 on the side, the supporting alignment end plate 231 is in position correspondence with the board alignment pressing block 240, and the side edge of the circuit board can abut against the supporting alignment end plate 231. The board supporting platform 230 is also provided with a plurality of limiting stoppers on the surface, so as to ensure the accuracy of the placement position of the circuit board.

[0047] The board alignment pressing block 240 is installed in the longitudinal transferring assembly through a longitudinal pressing assembly and cooperates with the board supporting platform 230, the circuit board in the board supporting platform 230 is pressed by the board alignment pressing block 240, so that the orientation of the circuit board is aligned with the predetermined direction.

[0048] The longitudinal pressing assembly comprises a longitudinal pressing cylinder 500, the cylinder body of the longitudinal pressing cylinder 500 is installed in the longitudinal transferring carrier 400, the piston rod end thereof is engaged with the board alignment pressing block 240 and is parallel to the longitudinal transferring carrier 400, the board alignment pressing block 240 is driven by the longitudinal pressing cylinder 500 to move, the outer end of the circuit board on the board supporting platform 230 is pressed by the board alignment pressing block 240, the inner end thereof abuts against the supporting alignment end plate 231, and the circuit board is aligned with the predetermined direction. The working surface of the board alignment pressing block 240 is provided with a flexible buffer material, so as to prevent the circuit board surface from being damaged.

[0049] The board output gripper 250 is installed in the lifting and transverse moving assembly through a lifting and longitudinal moving assembly, can move longitudinally and vertically independently in the lifting and transverse moving assembly together with the lifting and transverse moving assembly, and can output the circuit board in the board supporting platform 230 outwardly through the board output gripper 250.

[0050] The lifting and longitudinal moving assembly includes a primary lifting cylinder 610, a secondary lifting cylinder 620 and a longitudinal moving cylinder 630. The primary lifting cylinder 610 is installed in the lifting and moving carrier 320 and arranged vertically. The secondary lifting cylinder 620 is installed at the end of the piston rod of the primary lifting cylinder 610 and arranged vertically. The secondary lifting cylinder 620 is driven by the primary lifting cylinder 610 to move vertically. The longitudinal moving cylinder 630 is installed in the lifting and moving carrier 320 through a vertical sliding block guide rail structure, arranged longitudinally and engaged with the end of the piston rod of the secondary lifting cylinder 620. The board output gripper 250 is installed at the end of the piston rod of the longitudinal moving cylinder 630. The longitudinal moving cylinder 630 is driven by the primary lifting cylinder 610 and the secondary lifting cylinder 620 to move vertically, and the board output gripper 250 is driven by the longitudinal moving cylinder 630 to move longitudinally. The end of the board output gripper 250 is also provided with a vacuum chuck set. The vacuum chuck set is connected in a flexible manner to ensure complete contact with the surface of the circuit board.

[0051] The method for using the circuit board feeding device includes:

[0052] The operator loads two stacks of circuit boards into the left and right board placing boxes 210 respectively. The board carrying platform 230 moves to the center line between the two boxes by the longitudinal moving assembly, and the height matches the feeding height of the board taking gripper 220. The board alignment pressing block 240 is in the retracted state under the driving of the longitudinal pressing cylinder 500, leaving space for the circuit board. The board output gripper 250 is raised to the high position to avoid interfering with the movement of other components.

[0053] The transverse screw nut structure drives the entire lifting and moving carrier 320 to move left along the transverse moving carrier 310 until the one-side board taking gripper 220 installed on the gripper assembly carrier 330 is accurately aligned with the center of the one-side box. The vertical screw nut structure is started to drive the gripper assembly carrier 330 to lower with the board taking gripper 220. The board taking gripper 220 is lowered to the current feeding height determined by the real-time feedback of the sensor. After reaching the position, the one-side board taking gripper 220 is actuated, and the vacuum chuck set at the end generates negative pressure to suck the top layer of the circuit board. The transverse telescopic cylinder driving the gripper is retracted, and the sucked circuit board is smoothly pulled out horizontally from the placing space of the box by a small distance, so that it is completely moved to the obstacle-free area outside the opening of the box.

[0054] Subsequently, the vertical screw-nut structure lifts the gripper assembly carrier 330, making the circuit board safely above the edge of the magazine. After that, the horizontal screw-nut structure drives the entire assembly to move to the right, making the board taking gripper 220 with the circuit board move to the exact above of the waiting board carrier platform 230. The gripper drops again until the circuit board is placed on the surface of the board carrier platform 230. The vacuum suction channels on the board carrier platform 230 are activated, preliminarily fixing the circuit board by negative pressure to prevent it from sliding. The board taking gripper 220 releases the vacuum and releases the board, and its horizontal telescopic cylinder resets, preparing for the next taking.

[0055] The piston rod of the longitudinal pressing cylinder 500 extends, pushing the board alignment pressing block 240 to move forward along the direction parallel to the longitudinal transfer carrier 400. The pressing block contacts and presses the side of the circuit board away from the carrier alignment end plate 231, applying a smooth pushing force. Under the action of this pushing force, the circuit board will produce a slight sliding on the vacuum-suctioned platform until the other side is completely attached to the carrier alignment end plate 231 firmly installed on the board carrier platform 230. The position of the circuit board is accurately corrected, and its edge is parallel to the carrier alignment end plate 231, meeting the predetermined directional requirements. After alignment, the longitudinal pressing cylinder 500 retracts, bringing the board alignment pressing block 240 back to its original position.

[0056] The primary lifting cylinder 610 acts, driving the entire secondary lifting cylinder 620 and longitudinal transfer cylinder 630 assembly to descend until the board output gripper 250 approaches the circuit board but has not yet contacted. The secondary lifting cylinder 620 acts, driving the longitudinal transfer cylinder 630 and the board output gripper 250 to make the final height adjustment until the vacuum suction disc group on the output gripper is in full contact with the surface of the circuit board that has completed alignment. The board output gripper 250 sucks the circuit board, and then the vacuum suction of the board carrier platform 230 is released.

[0057] The secondary lifting cylinder 620 acts, lifting the gripper height to completely separate the circuit board from the carrier. Then the primary lifting cylinder 610 acts again, making a large stroke lift to lift the entire assembly to a safe height. Then the longitudinal transfer cylinder 630 acts, pushing the board output gripper 250 to move outward along the longitudinal direction, stably transporting the circuit board to the next device outside the system. After reaching the position, the board output gripper 250 releases the vacuum and drops the circuit board. The longitudinal transfer cylinder 630 retracts, and the primary lifting cylinder 610 and the secondary lifting cylinder 620 cooperate to step by step lift and return the board output gripper 250 to the initial standby position, preparing for the next handling.

[0058] The system is also equipped with photoelectric sensor and position detection device for real-time monitoring of the position state of each moving part, ensuring the operation accuracy and safety. The control system adopts PLC programming control, which can realize automatic operation and fault diagnosis function, and the operation interface is equipped with touch screen, which is convenient for parameter setting and state monitoring.

[0059] In the description of the present application, it should be noted that when the terms indicating the orientation or position relationship of "up", "down", "inner", "outer", "left", "right" and the like appear, they should be understood as the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the product of the present application is used, or the orientation or position relationship commonly understood by those skilled in the art, and only for the convenience of describing the present application and simplifying the description, and not indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application. In addition, when the terms "first", "second" and the like appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the present application, it should also be noted that unless otherwise specified and limited, the terms "mounting", "setting", "connecting" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A circuit board feeding device with a bidirectional feeding structure, comprising a support assembly frame (100), characterized in that, Also includes: A pair of plate placement boxes (210) are provided, each plate placement box (210) is installed in the bearing assembly frame (100) and arranged in the transverse direction; A pair of board picking grippers (220) are provided. Each board picking gripper (220) is installed in the bearing assembly frame (100) through a lifting and traversing assembly and is located between board placement boxes (210). The board picking grippers (220) can move horizontally and rise vertically between the board placement boxes (210) and can remove the circuit board in the board placement box (210) horizontally. The board support platform (230) is installed in the load-bearing assembly frame (100) by a longitudinal transfer assembly and corresponds to the position of the board picking gripper (220). The board picking gripper (220) transfers the circuit board to the board support platform (230). Plate alignment pressure block (240), the plate alignment pressure block (240) is installed in the longitudinal transfer assembly through the longitudinal pressing assembly and cooperates with the plate support platform (230); The plate output gripper (250) is installed in the lifting and traversing assembly via the lifting and traversing assembly. It can move horizontally and rise vertically together with the lifting and traversing assembly, and can move vertically and rise vertically independently in the lifting and traversing assembly. The lifting and traversing assembly includes: A transverse transfer carrier (310) is installed in the load-bearing assembly frame (100) and arranged transversely; The lifting and transfer frame (320) is arranged vertically and is installed in the transverse transfer frame (310) through a transverse slider guide structure and cooperates with the transverse transfer frame (310) through a transverse screw nut structure. The gripper assembly frame (330) is installed in the lifting and transferring frame (320) through a vertical slider guide structure and cooperates with the lifting and transferring frame (320) through a vertical screw nut structure. The plate picking gripper (220) is installed in the gripper assembly frame (330). Each of the plate picking grippers (220) extends downward and is arranged at both ends of the gripper assembly frame (330). They are engaged with the gripper assembly frame (330) through horizontal telescopic cylinders in opposite directions.

2. The circuit board feeding device with a bidirectional feeding structure according to claim 1, characterized in that, The longitudinal transfer component includes: The longitudinal transfer carrier (400) is installed in the load-bearing assembly frame (100) and arranged longitudinally. The plate support platform (230) is installed in the longitudinal transfer carrier (400) through the longitudinal slider guide rail structure and cooperates with the longitudinal transfer carrier (400) through the longitudinal screw nut structure.

3. The circuit board feeding device with a bidirectional feeding structure according to claim 1, characterized in that: The board carrier platform (230) is connected to the vacuum equipment through a pipeline, and can adsorb and position the circuit board it carries. A carrier alignment end plate (231) is provided on its side. The carrier alignment end plate (231) corresponds to the position of the board alignment pressure block (240). The side of the circuit board can abut against the carrier alignment end plate (231).

4. A circuit board feeding device with a bidirectional feeding structure according to claim 2, characterized in that, The longitudinal pressing assembly includes: The longitudinal top pressure cylinder (500) has its cylinder body installed in the longitudinal transfer carrier (400), and its piston rod end engages with the plate alignment pressure block (240) and is parallel to the longitudinal transfer carrier (400).

5. A circuit board feeding device with a bidirectional feeding structure according to claim 1, characterized in that, The lifting and vertical movement assembly includes: A primary lifting cylinder (610) is installed in the lifting and transfer frame (320) and arranged vertically; Secondary lifting cylinder (620), which is installed at the end of the piston rod of primary lifting cylinder (610) and arranged vertically; A longitudinal transfer cylinder (630) is installed in the lifting transfer frame (320) through a vertical slider guide structure. It is arranged longitudinally and engages with the piston rod end of the secondary lifting cylinder (620). A plate output gripper (250) is installed at the piston rod end of the longitudinal transfer cylinder (630).

6. The method of using the circuit board feeding device according to any one of claims 1 to 5, characterized in that, include: The operator loads two stacks of circuit boards into the left and right board placement boxes (210) respectively. The board support platform (230) will move to the vicinity of the center line between the two boxes through the longitudinal transfer component, and the height will match the material release height of the board picking gripper (220). The board alignment pressure block (240) is in a retracted state under the drive of the longitudinal top pressure cylinder (500) to make room for the circuit boards. The board output gripper (250) will be raised to a high position to avoid interfering with the movement of other components. The horizontal screw and nut structure drives the entire lifting and transfer frame (320) to move to the left along the horizontal transfer frame (310) until the side panel picking gripper (220) installed on the gripper assembly frame (330) is precisely aligned with the center of the side box. The vertical screw and nut structure is activated, driving the gripper assembly frame (330) to descend with the panel picking gripper (220). The panel picking gripper (220) will descend to the preset picking height. The picking height gradually decreases as the number of panels in the box decreases. After reaching the position, the side panel picking gripper (220) moves, and the suction cup at its end generates negative pressure to suck up the top circuit board. The horizontal telescopic cylinder of the gripper is driven to retract, and the sucked circuit board is smoothly pulled out horizontally from the placement space of the box. The vertical screw and nut structure lifts the gripper assembly frame (330), allowing the circuit board to be safely raised above the edge of the material box. The horizontal screw and nut structure drives the entire assembly to move to the right, moving the gripper holding the circuit board directly above the waiting board support platform (230). The gripper then descends again until the circuit board is placed on the surface of the board support platform (230). The vacuum adsorption channel on the board support platform (230) is activated, using negative pressure to initially adsorb and fix the circuit board, preventing it from sliding. The board pick-up gripper (220) releases the vacuum and releases the board. Its horizontal telescopic cylinder resets, preparing for the next pick-up. The lifting and traversing assembly raises and moves the board pick-up gripper (220) away, making room for subsequent operations. The piston rod of the longitudinal top-pressing cylinder (500) extends, pushing the plate alignment block (240) forward along the direction parallel to the longitudinal transfer carrier (400). The block contacts and presses against the side of the circuit board away from the carrier alignment end plate (231), applying a smooth thrust. Under the action of this thrust, the circuit board will produce a slight slide on the vacuum adsorption platform until its other side is completely in contact with the carrier alignment end plate (231) firmly installed on the plate carrier platform (230). The position of the circuit board is precisely corrected, and its edge is parallel to the carrier alignment end plate (231), achieving the predetermined direction requirement. After the alignment is completed, the longitudinal top-pressing cylinder (500) retracts, driving the plate alignment block (240) back to its original position. The primary lifting cylinder (610) is activated, driving the entire secondary lifting cylinder (620) and longitudinal transfer cylinder (630) assembly to descend until the board output gripper (250) approaches the circuit board but has not yet made contact. The secondary lifting cylinder (620) is activated, driving the longitudinal transfer cylinder (630) and board output gripper (250) to make a final height adjustment until the suction cup on the output gripper makes full contact with the aligned circuit board surface. The board output gripper (250) then holds the circuit board, and the vacuum adsorption of the board support platform (230) is released. The secondary lifting cylinder (620) actuates, raising the height of the board output gripper (250) to completely separate the circuit board from the platform. Then, the primary lifting cylinder (610) actuates again to perform a large-stroke lift, raising the entire component to a safe height. Next, the longitudinal transfer cylinder (630) actuates, pushing the board output gripper (250) to move longitudinally outward, smoothly transporting the circuit board to the next device outside the system. After it is in place, the board output gripper (250) releases the vacuum, lowers the circuit board, and the longitudinal transfer cylinder (630) retracts. The primary lifting cylinder (610) and the secondary lifting cylinder (620) work together to lift the board output gripper (250) step by step and return it to the initial standby position, ready for the next transport.

Images