A PCB temporary storage machine with clamping edges

Abstract

The application provides a kind of edge type PCB plate temporary storage machine, belong to the technical field of automation equipment. Including rack and setting on the rack into board platform, plate turning mechanism, plate inserting manipulator, edge clamping mechanism, plate output platform, edge clamping mechanism includes first and last connected plate storage belt, the outer side of plate storage belt has a plurality of slots arranged alternately, plate storage belt has a horizontal flat plate storage section, plate turning mechanism can clamp and overturn the PCB board placed on the into board platform to vertical state, plate inserting manipulator can switch the PCB board on the plate turning mechanism and insert into the slot of flat plate storage section, a driving motor is arranged on the rack to drive the flat plate storage section to move from the into board platform to the direction of plate output platform, the PCB board inserted into the slot of flat plate storage section can be separated from the slot at the tail end of flat plate storage section and turned over to the plate output platform. The application has the advantages of improving production efficiency and optimizing the continuity of production.

Description

Technical Field

[0001] This invention belongs to the field of automation equipment technology and relates to a clamping PCB board temporary storage machine. Background Technology

[0002] In the continuous production of PCBs, when there is a difference in processing speed between adjacent processes, especially when the board feeding speed of the later process is lower than the board output speed of the previous process, in order to ensure that the later process can maintain uninterrupted operation for a longer period of time, it is necessary to temporarily store the PCBs produced by the previous process to ensure the board feeding needs of the later process.

[0003] In existing technologies, when there are differences in processing speed between the preceding and following processes, multiple slower process equipment are required, or the boards are stacked and temporarily stored. Stacked and temporarily stored boards require multi-point support, which can easily cause wear on the board surface during the temporary storage process and the retrieval process in the next process. In addition, this temporary storage method requires a lot of auxiliary equipment, such as temporary storage racks, which is detrimental to the cost, processing efficiency and processing quality of fully automated PCB production. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by providing a clamping PCB board temporary storage machine. The technical problem to be solved by this invention is how to maintain continuous operation without stopping when the speed of the subsequent process is lower than that of the previous process.

[0005] The objective of this invention can be achieved through the following technical solution: A clamping PCB board temporary storage machine, characterized in that it includes a frame and an infeed platform, a flipping mechanism, an insertion robot, a clamping mechanism, and an output platform mounted on the frame. The clamping mechanism includes a storage belt connected end to end, and the outer side of the storage belt has a plurality of slots arranged alternately. The storage belt has a horizontal flat storage section. The flipping mechanism can clamp and flip the PCB board placed on the infeed platform to a vertical state. The insertion robot can transfer the PCB board on the flipping mechanism and insert it into the slot of the flat storage section. The frame is provided with a drive motor that drives the flat storage section to move from the infeed platform to the output platform. The PCB board inserted into the slot of the flat storage section can disengage from the slot at the end of the flat storage section and flip onto the output platform.

[0006] Furthermore, the plate placement surface of the discharge platform is lower than the upper surface of the flat storage plate section.

[0007] Furthermore, the storage belt is a rubber track.

[0008] Furthermore, the storage plate belt includes two parallel chains, with a support rod connecting the corresponding pins of the two chains between them. A clamping head is fixedly installed between two chain links connected to the same support rod, forming a slot between adjacent clamping heads. Each clamping head has a wedge opening on both sides facing the slot, and a wedge block is slidably connected inside the wedge opening. The bottom of the wedge block has a support portion, and the bottom of the clamping head has a limiting portion located below the support portion. After the PCB board is inserted into the slot at the flat storage plate section, the support portions of the two wedge blocks in the same slot support the end of the PCB board on the insertion side. After the PCB board is inserted into the slot at the flat storage plate section, the two wedge blocks in the same slot can approach each other and slide towards the bottom of the slot under the gravity of the PCB board until the support portion of the wedge block abuts against the limiting portion of the clamping head.

[0009] Furthermore, the wedge is made of iron, and the clamping head has a permanent magnet that can attract two wedges into the same slot and keep them far apart.

[0010] Because this solution uses a clamping storage structure, the area of ​​the PCB board being clamped is relatively small. This minimizes friction damage to the board during insertion and removal. To store more PCB boards within a small, flat storage section, the slot spacing needs to be as small as possible. However, the storage belt vibrates during movement, and too small a slot spacing can cause collisions between adjacent PCB boards. Therefore, reducing board wear and increasing clamping strength must be balanced. In this solution, the weight of the board after vertical insertion causes two wedge blocks to approach and clamp the PCB board. When removing the PCB board, the external force used to remove it prevents the two wedge blocks from being subjected to force towards the bottom of the slot. Furthermore, the magnetic force drives the wedge blocks back to their original position, allowing them to actively release the clamping force on the PCB board during removal, thus reducing wear on the board during clamping and removal.

[0011] At the end of the flat storage board section, due to the increase in slot spacing and the reduction in pressure on the wedge block caused by the tilt of the PCB board, the clamping force of the wedge block is reduced instantly, thus enabling automatic board ejection.

[0012] Furthermore, a roller is rotatably connected to the support rod, and a support plate for supporting the flat storage plate section is fixedly installed on the frame. During the movement of the storage plate belt, the roller is rotatably connected to the support plate.

[0013] The cooperation between the support plate and the roller ensures that the flat storage section is in a flat state, so that the PCB board inserted into the slot is in a vertical state, avoiding the PCB board tilting and causing the boards to collide with each other, and also maximizing the clamping effect of the wedge block on the PCB board.

[0014] Furthermore, the loading platform includes two mounting brackets slidably connected to the frame. Several rollers are alternately arranged on the inner side of each mounting bracket. A transmission bevel gear I is fixedly mounted on the outer side of each mounting bracket. A transmission shaft perpendicular to the circumference of the rollers is rotatably connected to the outer side of the mounting bracket. Several transmission bevel gears II, corresponding one-to-one with each transmission bevel gear I, are fixedly mounted on the transmission shaft. The transmission shaft is driven by a drive motor II. A screw parallel to the roller axis is rotatably connected to the frame. The screw has two threaded segments with opposite thread directions at both ends, and the two threaded segments are threadedly connected to the two mounting brackets respectively. The screw is driven by a drive motor III.

[0015] The spacing between the two mounting brackets on the board loading platform is adjustable to accommodate PCBs of different sizes.

[0016] Furthermore, the flipping mechanism includes two clamping arms that are respectively fixed on two mounting brackets. One end of the clamping arm near the end of the infeed platform is hinged to the corresponding mounting bracket. The clamping arm is provided with several grippers. The swing of the clamping arm around the hinge point is controlled by a drive motor.

[0017] The working process of this clamping PCB board temporary storage machine is as follows: The board inlet platform receives the PCB board after the previous process with a faster board output speed. At the board inlet platform, a flipping mechanism with grippers clamps the PCB board on the board inlet platform and flips it 90°. Then, a board insertion robot with grippers transfers the PCB board on the flipping mechanism and moves it into the corresponding slot, maintaining the speed synchronization between the storage belt and the output platform. If the preceding and following processes of this PCB board temporary storage machine are running synchronously, the board insertion robot needs to insert boards sequentially from the end of the flat storage section to the front. This can maintain the synchronous operation of the preceding and following processes for a relatively long time. When the speed of the following process is slower than that of the preceding process, the synchronous operation of the preceding and following processes can be maintained until the speed difference between the preceding and following processes exceeds the storage capacity of the flat storage section. At this time, it is necessary to accelerate the running speed of the storage belt so that the few remaining PCB boards near the beginning of the flat storage section can move to the end. In this way, the continuous operation of the preceding and following processes can be maintained. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the structure of this PCB board temporary storage machine after the rack housing has been removed.

[0019] Figure 2 is a complete diagram of this PCB board temporary storage machine.

[0020] Figure 3 is a schematic diagram of the PCB board temporary storage machine when the flipping mechanism is flipped to the vertical state.

[0021] Figure 4 is a schematic diagram of the chain-type storage plate belt.

[0022] Figure 5 is a schematic diagram of the structure of the storage plate with multiple links.

[0023] Figure 6 is a cross-sectional view of Figure 5.

[0024] Figure 7 is a three-dimensional structural diagram of a single link of the storage plate belt.

[0025] In the diagram, 1. Plate feeding platform; 11. Mounting frame; 12. Roller; 13. Transmission bevel gear one; 14. Transmission bevel gear two; 15. Drive motor two; 16. Screw; 17. Drive motor three; 2. Flipping mechanism; 21. Clamping arm; 22. Gripper; 23. Drive motor four; 3. Plate insertion robot; 4. Edge clamping mechanism; 41. Storage belt; 411. Straight storage section; 412. Drive motor one; 413. Support rod; 414. Clamping head; 415. Wedge; 416. Wedge block; 417. Support part; 418. Limiting part; 419. Permanent magnet block; 42. Roller; 43. Support plate; 5. Plate discharge platform. Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] As shown in Figures 1-7, the clamping PCB board temporary storage machine includes a frame and an infeed platform 1, a flipping mechanism 2, an insertion robot 3, a clamping mechanism 4, and an output platform 5, all mounted on the frame. The clamping mechanism 4 includes a storage belt 41 connected end to end. The outer side of the storage belt 41 has several slots arranged alternately. The storage belt 41 has a horizontal flat storage section 411. The flipping mechanism 2 can clamp and flip the PCB board placed on the infeed platform 1 to a vertical position. The insertion robot 3 can transfer the PCB board on the flipping mechanism 2 and insert it into the slot of the flat storage section 411. The frame is equipped with a drive motor 412 that drives the flat storage section 411 to move from the infeed platform 1 to the output platform 5. The PCB board inserted into the slot of the flat storage section 411 can disengage from the slot at the end of the flat storage section 411 and flip onto the output platform 5.

[0028] The placement surface of the ejection platform 5 is lower than the upper surface of the flat storage section 411. This allows the PCB board to be tilted onto the ejection platform 5 without being jammed.

[0029] The storage plate belt 41 is a rubber track, and the slot is a pre-reserved groove during the prefabrication process. By utilizing the slight deformation of the rubber material, the plate can be clamped and pulled out to disengage from the slot.

[0030] The storage belt 41 includes two parallel chains. A support rod 413 is provided between the two chains to connect corresponding pins. A clamping head 414 is fixedly provided between two chain links connected to the same support rod 413. A slot is formed between adjacent clamping heads 414. A wedge opening 415 is opened on both sides of the clamping head 414 facing the slot. A wedge block 416 is slidably connected in the wedge opening 415. The bottom of the wedge block 416 has a support part 417. The bottom of the clamping head 414 is provided with... A limiting part 418 is provided below the support part 417; after the PCB board is inserted into the slot at the flat storage plate section 411, the support parts 417 of the two wedge blocks 416 in the same slot support the end of the PCB board on the insertion side; after the PCB board is inserted into the slot at the flat storage plate section 411, the two wedge blocks 416 in the same slot can approach each other and slide towards the bottom of the slot under the gravity of the PCB board until the support parts 417 of the wedge blocks 416 abut against the limiting part 418 of the clamping head 414.

[0031] The wedge block 416 is made of iron, and the clamping head 414 has a permanent magnet block 419 that can attract two wedge blocks 416 into the same slot and keep them away from each other.

[0032] Because this solution uses a clamping storage structure, the area of ​​the PCB board being clamped is relatively small. This minimizes friction damage to the board during insertion and removal. To store more PCB boards within the smaller, flat storage section 411, the slot spacing needs to be as small as possible. However, the storage belt 41 vibrates during movement, and a small slot spacing can cause collisions between adjacent PCB boards. Therefore, reducing board wear and increasing clamping strength must be balanced. In this solution, the weight of the board after vertical insertion causes two wedge blocks 416 to approach each other and clamp the PCB board. When removing the PCB board, the external force used to remove it prevents the two wedge blocks 416 from being subjected to force towards the bottom of the slot. Furthermore, the magnetic force drives the wedge blocks 416 back to their original position, allowing them to actively release the clamping force on the PCB board during removal, thus reducing wear on the board during clamping and removal.

[0033] At the end of the flat storage board section 411, due to the increase in slot spacing and the reduction in pressure on the wedge block 416 caused by the tilt of the PCB board, the clamping force of the wedge block 416 is reduced instantly, thereby enabling automatic board ejection.

[0034] A roller 42 is rotatably connected to the support rod 413, and a support plate 43 is fixedly installed on the frame to support the flat storage plate section 411. During the movement of the storage plate belt 41, the roller 42 is rotatably connected to the support plate 43.

[0035] The cooperation between the support plate 43 and the roller 42 ensures that the flat storage section 411 is in a flat state, so that the PCB board inserted into the slot is in a vertical state, avoiding the PCB board tilting and causing the boards to collide with each other, and also maximizing the clamping effect of the wedge block 416 on the PCB board.

[0036] The loading platform 1 includes two mounting brackets 11 slidably connected to the frame. Several rollers 12 are arranged alternately on the inner side of the mounting brackets 11. A transmission bevel gear 13 located on the outer side of the mounting bracket 11 is fixedly mounted on the mounting bracket 11. A transmission shaft perpendicular to the circumference of the rollers 12 is rotatably connected to the outer side of the mounting bracket 11. Several transmission bevel gears 14 corresponding to each transmission bevel gear 13 are fixedly mounted on the transmission shaft. The transmission shaft is driven by a drive motor 15. A screw 16 parallel to the axis of the rollers 12 is rotatably connected to the frame. The two ends of the screw 16 have two threaded sections with opposite thread directions. The two threaded sections are threadedly connected to the two mounting brackets 11 respectively. The screw 16 is driven by a drive motor 17.

[0037] The spacing between the two mounting brackets 11 of the board mounting platform 1 is adjustable to accommodate PCBs of different sizes.

[0038] The flipping mechanism 2 includes two clamping arms 21 that are respectively fixed on two mounting brackets 11. One end of the clamping arm 21 near the end of the infeed platform 1 is hinged to the corresponding mounting bracket 11. Several grippers 22 are provided on the clamping arm 21. The swing of the clamping arm 21 around the hinge point is controlled by a drive motor 23.

[0039] The working process of this clamping PCB board temporary storage machine is as follows: The board inlet platform 1 receives the PCB board after the previous process, which has a faster output speed. At the board inlet platform 1, the flipping mechanism 2, carrying grippers 22, clamps the PCB board on the board inlet platform 1 and flips it 90°. Subsequently, the insertion robot 3, also equipped with grippers 22, transfers the PCB board from the flipping mechanism 2 and moves it into the corresponding slot, maintaining the speed synchronization between the storage belt 41 and the output platform 5. If the preceding and following processes of this PCB board temporary storage machine operate synchronously, then... The board insertion robot 3 needs to insert boards sequentially from the end of the flat board storage section 411 to the front end. It can maintain synchronous operation of the front and rear processes for a relatively long time. Even when the speed of the later process is slower than that of the earlier process, it can maintain synchronous operation of the front and rear processes until the speed difference between the front and rear processes exceeds the board storage capacity of the flat board storage section 411. At this time, it is necessary to accelerate the running speed of the board storage belt 41 so that the few remaining PCB boards close to the first section of the flat board storage section 411 can move to the end. In this way, continuous operation of the front and rear processes can be maintained.

[0040] The flipping mechanism 2 and the inserting robot 3 use the same method to clamp the plates, but their movements differ. The flipping mechanism 2 only switches between horizontal and vertical states, while the inserting robot 3 needs to reciprocate along the running direction of the flat storage section 411, and can also reciprocate longitudinally to adjust the position of the plate in the three-dimensional space above the flat storage section 411, allowing it to select different positions for insertion as needed. The plate output platform 5 has a multi-roller structure, and the plate output can be achieved by driving the rotation of each roller.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A clamp-type PCB board temporary storage machine, characterized in that, The system includes a frame and an infeed platform (1), a flipping mechanism (2), a board insertion robot (3), a clamping mechanism (4), and an outfeed platform (5) mounted on the frame. The clamping mechanism (4) includes a storage strip (41) connected end to end. The outer side of the storage strip (41) has several slots arranged alternately. The storage strip (41) has a horizontal, straight storage section (411). The flipping mechanism (2) can clamp the PCB board placed on the infeed platform (1) and... When flipped to a vertical position, the board insertion robot (3) can transfer the PCB board on the flipping mechanism (2) and insert it into the slot of the flat storage section (411). The frame is equipped with a drive motor (412) that drives the flat storage section (411) to move from the board entry platform (1) to the board exit platform (5). The PCB board inserted into the slot of the flat storage section (411) can be dislodged from the slot at the tail end of the flat storage section (411) and flipped onto the board exit platform (5). The storage plate belt (41) includes two parallel chains. A support rod (413) connecting the two chains is provided between the two chains and the corresponding pins of the two chains are provided. A clamping head (414) is fixedly provided between two chain links connected by the same support rod (413). A slot is formed between adjacent clamping heads (414). A wedge opening (415) is opened on both sides of the clamping head (414) facing the slot. A wedge block (416) is slidably connected in the wedge opening (415). The bottom of the wedge block (416) has a support part (417). The clamping head (414) 4) The bottom is provided with a limiting part (418) located below the support part (417); after the PCB board is inserted into the slot at the flat storage plate section (411), the support parts (417) of the two wedge blocks (416) in the same slot support the end of the PCB board on the insertion side; after the PCB board is inserted into the slot at the flat storage plate section (411), the two wedge blocks (416) in the same slot can approach each other and slide towards the bottom of the slot under the gravity of the PCB board until the support part (417) of the wedge block (416) abuts against the limiting part (418) of the clamping head (414).

2. The clamp-type PCB board temporary storage machine according to claim 1, characterized in that, The plate placement surface of the discharge platform (5) is lower than the upper surface of the flat storage plate section (411).

3. The clamp-type PCB board temporary storage machine according to claim 1, characterized in that, The storage plate belt (41) is a rubber track.

4. The clamp-type PCB board temporary storage machine according to claim 1, characterized in that, The wedge (416) is made of iron, and the clamping head (414) has a permanent magnet (419) that can attract two wedges (416) in the same slot to keep them away from each other.

5. The clamp-type PCB board temporary storage machine according to claim 4, characterized in that, A roller (42) is rotatably connected to the support rod (413), and a support plate (43) supporting the flat storage plate section (411) is fixedly installed on the frame. During the movement of the storage plate belt (41), the roller (42) is rotatably connected to the support plate (43).

6. A clamping PCB board temporary storage machine according to any one of claims 1-5, characterized in that, The loading platform (1) includes two mounting brackets (11) slidably connected to the frame. Several rollers (12) are arranged alternately on the inner side of the mounting brackets (11). A transmission bevel gear (13) located on the outer side of the mounting bracket (11) is fixedly installed on the mounting bracket (11). A transmission shaft perpendicular to the circumference of the rollers (12) is rotatably connected to the outer side of the mounting bracket (11). Several transmission bevel gears (14) corresponding to each transmission bevel gear (13) are fixedly installed on the transmission shaft. The transmission shaft is driven by a drive motor (15). A screw (16) parallel to the axis of the rollers (12) is rotatably connected to the frame. The two ends of the screw (16) have two threaded sections with opposite thread directions. The two threaded sections are threadedly connected to the two mounting brackets (11) respectively. The screw (16) is driven by a drive motor (17).

7. The clamp-type PCB board temporary storage machine according to claim 6, characterized in that, The flipping mechanism (2) includes two clamping arms (21) respectively fixed on two mounting frames (11). One end of the clamping arm (21) near the end of the entry platform (1) is hinged to the corresponding mounting frame (11). The clamping arm (21) is provided with a number of grippers (22). The swing of the clamping arm (21) around the hinge point is controlled by a drive motor (23).

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