Automated silo structure with auxiliary positioning device

Abstract

The present application discloses an automated silo structure with an auxiliary placement device, which relates to the field of automated silo technology. The structure comprises two parallel transport lines, each of which transports a tray loaded with circuit boards; a transport mechanism comprising a first linear motor, a second linear motor, a lifting cylinder disposed on the moving end of the second linear motor, and a reversing motor disposed on the output end of the lifting cylinder; a connecting plate disposed on the output end of the reversing motor; a suction assembly for negative pressure adsorption or placement of circuit boards disposed on the side wall of the connecting plate near the transport line, and a positioning mechanism located on one side of the suction assembly for adjusting the position of the circuit board on the tray. The present application can accurately and automatically place qualified circuit boards in the empty space of the tray.

Description

Technical Field

[0001] The present application relates to the technical field of automated silos, and in particular to an automated silo structure with an auxiliary positioning device. Background Art

[0002] After undergoing SMT placement, soldering, and other processes, circuit boards are placed on trays. These trays are typically metal pallets that carry a certain number of circuit boards before being moved into a silo. This silo is a storage facility for the collection of PCBs equipped with an optical inspection system, a tray transport system, and a material transfer mechanism.

[0003] Tray transport systems typically consist of two production lines. One line includes an initial inspection area, a qualified area, and a discharge area, all connected by a conveyor belt. The other line includes a failed area and a restocking area, also connected by a conveyor belt. The two lines operate independently, with the failed area corresponding to the initial inspection area and the restocking area corresponding to the qualified area. In the initial inspection area, an optical inspection system performs optical inspections on the PCBs on the trays to detect issues such as wiring errors and contamination that could affect subsequent processing. A material transfer mechanism is located between all areas of the two production lines and typically consists of a mobile device and a suction device mounted on the mobile device that uses negative pressure to hold the PCBs. If the optical inspection system detects a defective PCB on the tray in the initial inspection area, the mobile device, carrying the suction device, removes the defective PCB from the initial inspection area. The mobile device then transports the suction device and the defective PCB to the failed area. A conveyor belt then transports the trays from the initial inspection area to the qualified area. The mobile device then picks up qualified PCBs from the restocking area and transfers them to the trays in the qualified area, replenishing the trays. Finally, the conveyor belt transports the fully loaded trays from the qualified area to the unloading area to complete the inspection, replenishment and storage of the trays in the silo.

[0004] However, although the suction device can deliver qualified circuit boards from the feeding area to the material tray in the qualified area, the circuit boards are adsorbed on the suction device by negative pressure. In order to avoid touching other circuit boards in the material tray when dropping the circuit boards, the suction device will drop the circuit boards at a certain height above the material tray. In addition, since the circuit boards are patched according to their application requirements during the patch process, the weight of each part of the circuit board is often not the same. Therefore, after the suction device drops the circuit board above the material tray, the position of the circuit board on the material tray cannot be determined, and the problem of the placed circuit board folding or the corners overlapping with other circuit boards often occurs. When such problems occur, the operator is often required to manually adjust the position of the circuit board before the material tray can enter the unloading area for completion of storage. Summary of the Invention

[0005] Purpose of the invention: The present application provides an automated silo structure with an auxiliary positioning device, aiming to improve the technical problem that the positioning of circuit boards on the tray is difficult to control.

[0006] Technical solution: The present application provides an automated silo structure with an auxiliary positioning device, comprising two parallel transport lines, each of which transports a tray loaded with circuit boards; a carrying mechanism, comprising a first linear motor mounted above the transport line, a second linear motor arranged on the moving end of the first linear motor and having a moving direction perpendicular to the moving direction of the first linear motor, a lifting cylinder arranged on the moving end of the second linear motor, and a reversing motor arranged on the output end of the lifting cylinder; a jumper plate, arranged on the output end of the reversing motor; a suction component for negative pressure adsorption or placement of circuit boards is provided on the side wall of the jumper plate close to the transport line, and a positioning mechanism located on one side of the suction component for adjusting the position of the circuit board on the tray.

[0007] By adopting the above technical solution, after the suction component negatively absorbs the circuit board, the moving end of the first linear motor moves between the two transport lines, and the moving end of the second linear motor moves along the extension direction of the production line, so that the suction component and the circuit board can stay above the material tray; after the reversing motor rotates the output end, the suction component can be aligned with the control on the material tray, and the lifting cylinder extends the output end to bring the circuit board close to the material tray; the suction component releases the circuit board so that the circuit board falls on the material tray, and the positioning mechanism is used to adjust the position of the circuit board on the material tray; this process calibrates the landing position of the circuit board on the material tray by rotating the output end of the reversing motor, and shortens the placement distance of the circuit board above the material tray by extending the output end of the lifting cylinder to ensure the stability of the circuit board on the material tray; when the position of the circuit board on the material tray needs to be adjusted, the positioning mechanism can automatically adjust the position of the circuit board on the material tray to ensure that the circuit board is accurately positioned on the empty space on the material tray.

[0008] Furthermore, the suction assembly includes a negative pressure suction chassis and a ventilation pipe at one end connected to the negative pressure suction chassis, and the other end of the ventilation pipe is connected to an air source for enabling the negative pressure suction chassis to negatively pressure adsorb or release the circuit board; the suction assembly also includes a connecting unit for mounting the negative pressure suction chassis on the jumper plate and capable of adjusting the position of the negative pressure suction chassis relative to the jumper plate.

[0009] By adopting the above technical solution, the air source draws air from the negative pressure suction chassis through the ventilation pipe, so that the negative pressure suction chassis can negatively adsorb the circuit board. Then, when the first linear motor and the second linear motor move, the air source can stop sucking air to enable the negative pressure suction chassis to place the circuit board above the material tray; the connecting unit is used to enable the negative pressure suction chassis to be quickly and detachably installed on the jumper plate.

[0010] Furthermore, the connecting unit includes a plurality of guide wires and locking nuts that can be threadably adapted to the guide wires; the plurality of guide wires are arranged on the negative pressure suction chassis, and the plurality of guide wires can pass through the lap plate; the locking nuts are threadedly connected to the guide wires, so that the negative pressure suction chassis is positioned at the bottom or below the lap plate.

[0011] By adopting the above technical solution, after the guide wire rod passes through the lap plate, the locking nut is threadedly connected to the guide wire rod, thereby enabling the negative pressure suction chassis to be fixed on the lap plate; and, the operator can adjust the tightness of the locking nut on the guide wire rod so that the negative pressure suction chassis is tightly fixed to the bottom wall of the lap plate, or suspended under the lap plate with a gap, thereby facilitating more stable transportation of circuit boards by the negative pressure suction chassis, or making it easier for negative pressure adsorption of circuit boards of different sizes and specifications.

[0012] Furthermore, the positioning mechanism includes a landing rod; the landing rod is arranged on the bottom wall of the overlapping plate, and the end of the landing rod away from the overlapping plate is located below the circuit board adsorbed by negative pressure on the negative pressure suction chassis; after the output end of the lifting cylinder is extended outward, the landing rod can abut against the material tray, and the negative pressure suction chassis drops the circuit board after the landing rod abuts against the material tray.

[0013] By adopting the above technical solution, after the output end of the lifting cylinder extends outward, the end of the landing rod close to the material tray can abut against the material tray; at this time, the output end of the lifting cylinder will not extend further, and the distance between the negative pressure suction chassis and the material tray is a distance suitable for the negative pressure suction chassis to drop the circuit board, which helps to reduce the movement of the circuit board when it is dropped due to the high landing position and uneven weight distribution in various parts of the circuit board, thereby improving the accuracy and stability of the circuit board landing on the empty space of the material tray.

[0014] Furthermore, the positioning mechanism also includes a driving motor, a driving gear, a driven gear and an adjusting rod; the driving motor is arranged on the overlapping plate, and the output end of the driving motor passes through the overlapping plate; the driving gear is installed on the output end of the driving motor and can rotate following the output end of the driving motor, the adjusting rod is arranged on the bottom wall of the overlapping plate, the driven gear is rotatably arranged on the adjusting rod, and the driven gear is engaged with the driving gear to rotate following the rotation of the driving gear; the adjusting rod is arranged on the bottom wall of the driven gear, and the adjusting rod that rotates following the driven gear can adjust the position of the circuit board on the tray.

[0015] By adopting the above technical solution, when the placed circuit board overlaps other circuit boards on the material tray, the reversing motor can rotate the output end to make the adjustment rod close to the circuit board; after the driving motor rotates the output end, the driving gear rotates along with the output end of the driving motor, and the rotating driving gear can drive the driven gear that contacts it to rotate; during the rotation of the driven gear, the adjustment rod can contact and push the circuit board to move, thereby separating the placed circuit board from the overlapping circuit boards.

[0016] Furthermore, the positioning mechanism further includes a touch plate ball, which is arranged at an end of the positioning rod away from the driven gear, and the touch plate ball is deformable and has a rough outer surface.

[0017] By adopting the above technical solution, the touch panel ball that can be deformed and has a rough outer surface can increase the contact area between the adjustment rod and the circuit board, and improve the convenience of the adjustment rod in pushing the circuit board to move; and because the touch panel ball is easy to deform, it is easier to fit different parts of the circuit board, and since the outer surface of the touch panel ball is relatively rough, the adjustment rod is easier to push the circuit board to move synchronously, thereby improving the convenience and efficiency of the adjustment rod in adjusting the position of the circuit board on the tray.

[0018] Furthermore, the positioning mechanism also includes a guide assembly, which includes a drive unit, a guide rod and a guide plate module; a guide channel is provided through the lap plate, and the guide channel extends from the landing rod to the negative pressure suction chassis; the guide assembly is provided on the lap plate, and the guide rod is provided on the guide assembly and one end of which passes through the guide channel; the guide plate module is provided on the guide rod; the drive unit is used to move the guide rod along the extension direction of the guide channel, and the guide plate module is used to adjust the position of the circuit board on the material tray.

[0019] By adopting the above technical solution, the driving unit controls the guide rod to move along the extension direction of the guide channel, so that the guide plate module installed on the guide rod can push the circuit board on the tray, thereby further adjusting the position of the circuit board on the tray.

[0020] Furthermore, the drive guide unit includes a side control motor, a bearing seat, a center connecting screw and an inner connecting cylinder; the side control motor and the bearing seat are relatively arranged on the overlap plate, the guide rod is arranged on the inner connecting cylinder, and the inner connecting cylinder is threadedly connected to the center connecting screw; one end of the center connecting screw is connected to the output end of the side control motor, and the other end is arranged on the bearing seat.

[0021] By adopting the above technical solution, the edge control motor can rotate the middle screw rod in the clockwise or counterclockwise direction through the forward or reverse output end, thereby enabling the inner cylinder to carry the guide rod to move back and forth between the edge control motor and the bearing seat; in this process, the guide rod is automatically moved above the material tray, and the guide plate module installed on the guide rod can also push the circuit board on the material tray to adjust the position of the circuit board on the material tray so that the circuit board can accurately enter the empty space of the material tray.

[0022] Furthermore, the guide plate module includes a blast pipe arranged on the guide rod and a hose whose one end is connected to the blast pipe and the other end is connected to a fan; the hose provides airflow to the blast pipe through the fan, and the blast pipe is used to blow air to the circuit board to adjust the position of the circuit board on the material tray.

[0023] By adopting the above technical solution, the fan blows air toward the circuit board through the hose and the blast pipe in sequence, and then the circuit board is moved on the tray by blowing air toward the circuit board.

[0024] Furthermore, the guide plate module also includes a pushing cylinder arranged on the guide rod and parallel to the blast pipe, an adapter plate arranged on the output end of the pushing cylinder, and a sleeve connected to the adapter plate and sleeved on the blast pipe; after the output end of the pushing cylinder is extended and retracted, the sleeve can move along the axial direction of the blast pipe.

[0025] By adopting the above technical solution, after the output end of the pushing cylinder is extended, the adapter plate can carry the sleeve and move along the axial direction of the blast pipe. The moving sleeve can make the airflow blown by the blast pipe close to the circuit board, which helps to push the circuit board to move on the tray; and the moving sleeve can also directly abut and push the circuit board to move, so as to adjust the position of the circuit board on the tray.

[0026] In summary, this application has at least the following beneficial technical effects:

[0027] After the suction component negatively absorbs the circuit board, the moving end of the first linear motor moves between the two transport lines, and the moving end of the second linear motor moves along the extension direction of the production line, so that the suction component and the circuit board can stay above the material tray; after the reversing motor rotates the output end, the suction component can be aligned with the control on the material tray, and the lifting cylinder extends the output end to bring the circuit board close to the material tray; the suction component releases the circuit board so that the circuit board falls on the material tray, and the positioning mechanism is used to adjust the position of the circuit board on the material tray; this process calibrates the landing position of the circuit board on the material tray by rotating the output end of the reversing motor, and shortens the placement distance of the circuit board above the material tray by extending the output end of the lifting cylinder to ensure the stability of the circuit board on the material tray; when the position of the circuit board on the material tray needs to be adjusted, the positioning mechanism can automatically adjust the position of the circuit board on the material tray to ensure that the circuit board is accurately positioned on the empty space on the material tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural diagram of an automated silo structure with an auxiliary placement device in an embodiment of the present application;

[0029] Figure 2 This is a schematic diagram used to illustrate the positional relationship between two sets of transport lines and trays in an embodiment of the present application;

[0030] Figure 3 Schematic diagram of the connection relationship between the lap plate, the carrying mechanism, and the material suction assembly in the embodiment of the present application;

[0031] Figure 4 Schematic diagram of the positional relationship between the positioning mechanism and the guide assembly on the lap plate in an embodiment of the present application;

[0032] Figure 5 It is an exploded schematic diagram of the connection relationship of the suction component on the lap plate in an embodiment of the present application;

[0033] Figure 6 It is a schematic diagram used to illustrate the guide plate module in an embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1. Transport line; 11. First transport line; 12. Second transport line; 2. Material tray; 21. First loading tray; 22. Second loading tray; 3. Transport mechanism; 31. First linear motor; 32. Second linear motor; 33. Lifting cylinder; 34. Reversing motor; 4. Lap plate; 41. Guide channel; 5. Suction assembly; 51. Negative pressure suction chassis; 52. Ventilation pipe; 53. Connecting unit; 531. Lead screw; 532. Locking nut; 6. Positioning mechanism; 61. Positioning rod; 62. Driving motor; 63. Driving gear; 64. Driven gear; 65. Positioning rod; 66. Touch plate ball; 7. Guide assembly; 8. Drive unit; 81. Side control motor; 82. Bearing seat; 83. Middle connecting screw; 84. Inner connecting cylinder; 9. Guide rod; 10. Guide plate module; 101. Blower pipe; 102. Hose; 103. Push cylinder; 104. Adapter plate; 105. Sleeve. DETAILED DESCRIPTION

[0036] The embodiment of the present application discloses an automated silo structure with an auxiliary positioning device.

[0037] The following is combined with Figure 1-6 This application is described in further detail.

[0038] Reference Figure 1 and Figure 2 An automated silo structure with an auxiliary landing device includes two transport lines 1 placed on an operating table, and each transport line 1 transports a material tray 2; specifically, a first transport line 11 and a second transport line 12, and the first transport line 11 and the second transport line 12 can be belt conveyors running in a horizontal direction, and the first transport line 11 and the second transport line 12 are parallel to each other.

[0039] Reference Figure 2 The first transport line 11 is in continuous operation. A first carrier tray 21 is placed on the first transport line 11, and the first carrier tray 21 is loaded with circuit boards to be inspected. During the continuous operation of the first transport line 11, an optical inspection mechanism located outside the first transport line 11 can perform optical inspection on the circuit boards on the first carrier tray 21, and identify problematic circuit boards with wiring errors, contamination, and other surface defects that may affect subsequent processing. The optical inspection mechanism can also remove the problematic circuit boards from the first carrier tray 21 and place them in a designated "NG" area.

[0040] Reference Figure 2 A second carrier tray 22 is placed on the second transport line 12, and the second carrier tray 22 is loaded with circuit boards that have passed the inspection and are in a qualified state.

[0041] Reference Figure 1 and Figure 3The automated silo structure with an auxiliary placement device also includes a carrier mechanism 3, a bridge plate 4, and a suction assembly 5. The suction assembly 5 is mounted on the carrier mechanism 3 via the bridge plate 4. The suction assembly 5 is capable of negatively suctioning the qualified circuit boards on the second carrier 22. The carrier mechanism 3 then moves the suction assembly 5 and the negatively suctioned circuit boards from the second carrier 22 to above the first carrier 21. The suction assembly 5 deposits the suctioned circuit boards onto the first carrier 21 to fill the space vacated by the removal of unqualified circuit boards. Finally, the first transport line 11 moves the first carrier 21 loaded with qualified circuit boards to a designated location, completing the centralized storage of the first carrier 21.

[0042] Reference Figure 3 The transport mechanism 3 includes a first linear motor 31, a second linear motor 32, a lifting cylinder 33, and a reversing motor 34. The first linear motor 31 is mounted above the first transport line 11 and the second transport line 12 via a bracket. The moving end of the first linear motor 31 can move from above the first transport line 11 to above the second transport line 12.

[0043] Reference Figure 3 The second linear motor 32 is fixed to the moving end of the first linear motor 31 by bolts, and the moving direction of the moving end of the second linear motor 32 is perpendicular to the moving direction of the moving end of the first linear motor 31. In this embodiment, the central axis of the second linear motor 32 is parallel to the first moving line 11 and the second moving line 12 respectively.

[0044] Reference Figure 3 The lifting cylinder 33 is fixed to the moving end of the second linear motor 32 in the vertical direction by bolts, and the output end of the lifting cylinder 33 is away from the second linear motor 32. The reversing motor 34 can be a servo motor. The reversing motor 34 is fixed to the output end of the lifting cylinder 33 in the vertical direction by bolts, and the output end of the reversing motor 34 is away from the lifting cylinder 33.

[0045] Reference Figure 3 The lap plate 4 is welded to the output end of the reversing motor 34 in the horizontal direction. After the reversing motor 34 rotates the output end, the lap plate 4 can rotate along the circumferential direction of the output end of the reversing motor 34.

[0046] Reference Figure 3 and Figure 4 The suction assembly 5 includes a negative pressure suction chassis 51, a ventilation pipe 52 and a connecting unit 53.

[0047] Reference Figure 4 and Figure 5The negative pressure suction chassis 51 is detachably mounted on the side wall of the bridge plate 4 away from the reversing motor 34 via a connecting unit 53. The connecting unit 53 includes a plurality of guide screws 531 and a plurality of sets of locking nuts 532. In this embodiment, the number of guide screws 531 can be four, and the number of locking nuts 532 can be four. A set of locking nuts 532 can be threadedly connected to one guide screw 531.

[0048] Reference Figure 5 Four guide wires 531 are vertically welded to the four corners of the top wall of the negative pressure suction chassis 51. The guide wires 531 can pass through the lap plate 4. After the locking nuts 532 are screwed onto the guide wires 531, the negative pressure suction chassis 51 can be fixed to the lap plate 4 in two ways.

[0049] Reference Figure 4 and Figure 5 In the first type, the side walls of the negative pressure suction chassis 51 and the overlapping plate 4 facing each other are abutted against each other, and the locking nut 532 is threadedly tightened on the guide wire rod 531, and the locking nut 532 and the side walls of the overlapping plate 4 facing each other are also abutted against each other; at this time, the negative pressure suction chassis 51 is abutted against the bottom wall of the overlapping plate 4, and the connection stability between the negative pressure suction chassis 51 and the overlapping plate 4 is high, which is convenient for the first linear motor 31 and the second linear motor 32 to carry the negative pressure suction chassis 51 to stably negatively adsorb and move the circuit board.

[0050] Reference Figure 5 In the second method, a gap is left between the vacuum suction chassis 51 and the connecting plate 4. The locking nut 532 is screwed onto the guide screw 531. The bottom wall of the locking nut 532 abuts against the top wall of the connecting plate 4, and the connecting force of the locking nut 532 screwed onto the guide screw 531 causes the vacuum suction chassis 51 to be suspended below the connecting plate 4. In this case, the distance between the vacuum suction chassis 51 and the connecting plate 4 is easily adjustable, making it easier for the vacuum suction chassis 51 to subsequently vacuum-suction circuit boards of different sizes and thicknesses.

[0051] Reference Figure 1 and Figure 4One end of the vent tube 52 in the length direction is connected to an air source, which can be a vacuum pump. The other end of the vent tube 52 in the length direction is connected to the negative pressure suction chassis 51. After the air source sucks the air at the negative pressure suction chassis 51 through the vent tube 52, the negative pressure suction chassis 51 can negatively adsorb qualified circuit boards on the second carrier 22. Then, the moving end of the first linear motor 31 moves from above the second transport line 12 to above the first transport line 11; the moving end of the second linear motor 32 moves along its length direction until the moving end of the second linear motor 32 is positioned above any one of the first carriers 21. Then, the lifting cylinder 33 extends the output end so that the lap plate 4, the reversing motor 34, the negative pressure suction chassis 51, and the circuit board are close to the first carrier 21. The reversing motor 34 rotates the output end so that the negative pressure suction chassis 51 carrying the circuit board is positioned above the empty space on the first carrier 21 where the qualified circuit board is to be placed. Finally, after the air source stops sucking air through the vent pipe 52 , the negative pressure suction chassis 51 drops the circuit board down, so that the circuit board is placed on the first carrier 21 .

[0052] Reference Figure 4 and Figure 6 In order to ensure that the circuit board can be accurately positioned in the space reserved for the first carrier 21, the automated silo structure with an auxiliary positioning device also includes a positioning mechanism 6, which includes a positioning rod 61. In this embodiment, the positioning rod 61 can be a solid steel cylinder, and the positioning rod 61 is vertically welded to the bottom wall of the lap plate 4 in the vertical direction. After the lifting cylinder 33 extends the output end, the end of the positioning rod 61 away from the lap plate 4 can abut against the first carrier 21. At this time, a gap is left between the bottom wall of the negative pressure suction chassis 51 and the material tray 2. This gap is the maximum distance suitable for the negative pressure suction chassis 51 to drop the circuit board. The negative pressure suction chassis 51 positioned on or below the bottom wall of the lap plate 4 can adjust the distance between the bottom wall of the negative pressure suction chassis 51 and the first carrier 21 according to the actual situation of the circuit board, thereby facilitating the stable positioning of the circuit board in the space of the first carrier 21.

[0053] Reference Figure 4 and Figure 6 To return a circuit board that has been mistakenly placed on another circuit board to its intended location, the positioning mechanism 6 further includes a drive motor 62, a driving gear 63, a driven gear 64, a positioning rod 65, and a touch plate ball 66 for adjusting the circuit board position. The drive motor 62, which can be a servo motor, is bolted to the top wall of the connecting plate 4. The output terminal of the drive motor 62 extends through the connecting plate 4 and below the connecting plate 4.

[0054] Reference Figure 4 and Figure 6The driving gear 63 and the driven gear 64 can be gears that mesh with each other. The driving gear 63 is sleeved on the output end of the driving motor 62 and fixed by welding. The driven gear 64 is rotatably arranged on the landing rod 61 through a bearing, and the driven gear 64 and the driving gear 63 are in cross contact.

[0055] Reference Figure 4 and Figure 6 The adjustment rod 65 is welded obliquely to the bottom wall of the driven gear 64, and the touch plate ball 66 is glued and fixed to the end of the adjustment rod 65 away from the driven gear 64. In this embodiment, the touch plate ball 66 is a deformable rubber ball with a rough outer surface, and the outer diameter of the touch plate ball 66 is larger than the outer diameter of the adjustment rod 65.

[0056] Reference Figure 4 and Figure 6 When a circuit board overlaps another circuit board after being placed on the first carrier 21, the reversing motor 34 rotates its output end, moving the adjustment rod 65 closer to the circuit board. The drive motor 62 then rotates its output end, causing the driving gear 63 to begin rotating. The rotating driving gear 63 abuts the driven gear 64, causing it to rotate with it. As the driven gear 64 rotates, the end of the adjustment rod 65 with the contact ball 66 abuts the circuit board and pushes it to the desired location.

[0057] Reference Figure 4 and Figure 6 To fine-tune the position of the circuit board on the first carrier 21, the positioning mechanism 6 further includes a guide assembly 7, which includes a guide unit 8, a guide rod 9, and a guide plate module 10. The guide unit 8 further includes a side-controlled motor 81, a bearing seat 82, a connecting screw 83, and an internal connecting cylinder 84.

[0058] Reference Figure 6 The side control motor 81 and the bearing seat 82 are respectively mounted on the top wall of the lap plate 4 by bolts. In this embodiment, the side control motor 81 and the bearing seat 82 are located between the drive motor 62 and the reversing motor 34, with the side control motor 81 close to the drive motor 62 and the reversing motor 34 close to the reversing motor 34.

[0059] Reference Figure 6 A guide channel 41 is provided through the top wall of the lap plate 4, extending from the edge control motor 81 to the bearing seat 82. Furthermore, the inner diameter of the guide channel 41 matches the outer diameter of the guide rod 9. The guide rod 9 is vertically welded to the sidewall of the inner connecting cylinder 84. In this embodiment, the inner connecting cylinder 84 is an internally threaded cylinder that is threadably compatible with the intermediate connecting screw 83. The inner connecting cylinder 84 is threadedly connected to the intermediate connecting screw 83.

[0060] Reference Figure 6 One end of the middle connecting screw 83 in the longitudinal direction is coaxially connected to the output end of the side control motor 81 through a flange, and the other end is mounted on the bearing seat 82. At this time, one end of the guide rod 9 in the longitudinal direction passes through the guide channel 41 and is located below the overlap plate 4. When the output end of the side control motor 81 rotates clockwise, the middle connecting screw 83 can rotate clockwise, and the inner connecting cylinder 84 can carry the guide rod 9 along the axial direction of the middle connecting screw 83 from the side control motor 81 to the bearing seat 82. When the output end of the side control motor 81 rotates counterclockwise, the middle connecting screw 83 can rotate counterclockwise, and the inner connecting cylinder 84 can carry the guide rod 9 along the circumferential direction of the middle connecting screw 83 from the bearing seat 82 to the side control motor 81. As the output end of the side control motor 81 rotates forward or reverse, the guide rod 9 can reciprocate within the guide channel 41.

[0061] Reference Figure 6 The guide plate module 10 is installed at one end of the guide rod 9 below the lap plate 4. The guide plate module 10 includes a blast pipe 101, a hose 102, a push cylinder 103, an adapter plate 104, and a sleeve 105. The blast pipe 101 can be a steel metal pipe, and the blast pipe 101 is welded to the side wall of the guide rod 9.

[0062] Reference Figure 6 The hose 102 can be a soft, easily deformable rubber tube. One end of the hose 102 is inserted into the end of the blast tube 101 away from the first carrier 21, while the other end of the hose 102 is connected to the fan. When the position of the circuit board on the first carrier 21 needs to be fine-tuned, the reversing motor 34 rotates its output end, causing the connecting plate 4 to carry the blast tube 101 closer to the circuit board. The fan then blows air, causing air to flow through the hose 102 and blast tube 101, and onto the circuit board, thereby fine-tuning the circuit board's position on the first carrier 21.

[0063] Reference Figure 6 The sleeve 105 can be a steel pipe, and the inner diameter of the sleeve 105 matches the outer diameter of the blast tube 101. The sleeve 105 is sleeved on the blast tube 101 and can move axially along the blast tube 101. In this embodiment, the sleeve 105 is located at the end of the blast tube 101 near the first carrier 21.

[0064] Reference Figure 6 The pushing cylinder 103 can be an electric cylinder, and the pushing cylinder 103 is welded to the side wall of the guide rod 9. In this embodiment, the pushing cylinder 103 and the blast pipe 101 are respectively located at the radial ends of the guide rod 9, and the pushing cylinder 103 is parallel to the blast pipe 101.

[0065] Reference Figure 6The adapter plate 104 is welded to the output end of the push cylinder 103, and one end of the adapter plate 104 is welded to the sleeve 105. When the fan blows air onto the circuit board through the blast tube 101, the push cylinder 103 extends its output end, causing the adapter plate 104 to move axially along the blast tube 101, carrying the sleeve 105. This allows the end of the sleeve 105 away from the blast tube 101 to contact the circuit board and push it to move, thereby further fine-tuning the position of the circuit board on the first carrier 21.

[0066] The operating principle of the automated silo structure with an auxiliary positioning device in this embodiment of the present application is as follows: After the negative pressure suction chassis 51 negatively suctions qualified circuit boards from the second carrier 22, the movable end of the first linear motor 31 moves from above the second transport line 12 to above the first transport line 11. The movable end of the second linear motor 32 moves along the extension direction of the first transport line 11 and is positioned above one of the first carriers 21.

[0067] The reversing motor 34 rotates its output end to position the landing rod 61 at the position on the first carrier 21 where the circuit board is to be placed. The lifting cylinder 33 extends its output end to cause the end of the landing rod 61 closest to the first carrier 21 to abut against the first carrier 21. The negative pressure suction chassis 51 releases the circuit board, placing it on the first carrier 21.

[0068] When a circuit board overlaps another circuit board on the first carrier 21, the lifting cylinder 33 retracts its output end, causing the landing rod 61 to move above the circuit board. The reversing motor 34 rotates its output end, bringing the end of the adjustment rod 65 with the contact ball 66 close to the overlapping position of the circuit board. The drive motor 62 rotates its output end, causing the driving gear 63 to rotate the driven gear 64. As the driven gear 64 rotates, the end of the adjustment rod 65 with the contact ball 66 contacts and pushes the circuit board, separating the overlapping circuit boards until the circuit board moves to the desired position on the first carrier 21.

[0069] If the position of the circuit board on the first carrier 21 requires further adjustment, the reversing motor 34 rotates its output end further, bringing the end of the blast tube 101 closest to the first carrier 21 closer to the circuit board. The fan blows air toward the circuit board through the hose 102 and blast tube 101, moving the circuit board and allowing fine-tuning of its position on the first carrier 21. Furthermore, the push cylinder 103 extends its output end, causing the adapter plate 104 to move along the axial direction of the blast tube 101, bringing the blast tube 105 closer to the circuit board and pushing it further on the first carrier 21. This adjusts the circuit board's position on the first carrier 21, ensuring that the circuit board is precisely positioned in an empty space on the first carrier 21.

[0070] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automated silo structure with an auxiliary placement device, comprising two parallel transport lines (1), wherein the transport lines (1) respectively transport trays (2) loaded with circuit boards, characterized in that: include: A transport mechanism (3), the transport mechanism (3) comprising a first linear motor (31) mounted above the transport line (1), a second linear motor (32) disposed on a moving end of the first linear motor (31) and having a moving direction perpendicular to the moving direction of the first linear motor (31), a lifting cylinder (33) disposed on a moving end of the second linear motor (32), and a reversing motor (34) disposed on an output end of the lifting cylinder (33); A connecting plate (4) is arranged on the output end of the reversing motor (34); a side wall of the connecting plate (4) close to the transport line (1) is provided with a suction component (5) for negative pressure suction or delivery of circuit boards, and a positioning mechanism (6) located on one side of the suction component (5); The material suction assembly (5) comprises a negative pressure suction chassis (51) and a vent pipe (52) one end of which is connected to the negative pressure suction chassis (51), and the other end of the vent pipe (52) is connected to an air source for enabling the negative pressure suction chassis (51) to negatively absorb or release circuit boards; the material suction assembly (5) also comprises a connecting unit (53) for mounting the negative pressure suction chassis (51) on the connecting plate (4) and capable of adjusting the position of the negative pressure suction chassis (51) relative to the connecting plate (4); The positioning mechanism (6) includes a landing rod (61); the landing rod (61) is arranged on the bottom wall of the lap plate (4), and one end of the landing rod (61) away from the lap plate (4) is located below the circuit board adsorbed by negative pressure on the negative pressure suction chassis (51); after the output end of the lifting cylinder (33) is extended outward, the landing rod (61) can abut against the material tray (2), and the negative pressure suction chassis (51) drops the circuit board after the landing rod (61) abuts against the material tray (2); The positioning mechanism (6) further comprises a driving motor (62), a driving gear (63), a driven gear (64) and a positioning rod (65); the driving motor (62) is arranged on the lap plate (4), and the output end of the driving motor (62) passes through the lap plate (4); the driving gear (63) is mounted on the output end of the driving motor (62) and can rotate following the output end of the driving motor (62); the positioning rod (61) is arranged on the bottom wall of the lap plate (4); the driven gear (64) is rotatably arranged on the positioning rod (61), and the driven gear (64) is meshed with the driving gear (63) to rotate following the rotation of the driving gear (63); the positioning rod (65) is arranged on the bottom wall of the driven gear (64); the positioning rod (65) rotates following the driven gear (64) and can resist and push the circuit board to move, thereby causing the put-in circuit board to separate from the lapped circuit board.

2. The automated silo structure with auxiliary positioning device according to claim 1, characterized in that: The connecting unit (53) comprises a plurality of guide wires (531) and locking nuts (532) capable of threadably matching the guide wires (531); the plurality of guide wires (531) are arranged on the negative pressure suction chassis (51), and the plurality of guide wires (531) can pass through the lap plate (4); the locking nuts (532) are threadably connected to the guide wires (531), so that the negative pressure suction chassis (51) is positioned below the lap plate (4).

3. The automated silo structure with auxiliary positioning device according to claim 2, characterized in that: The positioning mechanism (6) further comprises a touch plate ball (66), which is arranged at one end of the positioning rod (65) away from the driven gear (64), and the touch plate ball (66) is deformable and has a rough outer surface.

4. The automated silo structure with auxiliary positioning device according to claim 3, characterized in that: The positioning mechanism (6) further includes a guide assembly (7), which includes a drive unit (8), a guide rod (9) and a guide plate module (10); a guide channel (41) is provided through the lap plate (4), and the guide channel (41) extends from the landing rod (61) to the negative pressure suction chassis (51); the guide assembly (7) is provided on the lap plate (4), and the guide rod (9) is provided on the guide assembly (7) with one end thereof passing through the guide channel (41); the guide plate module (10) is provided on the guide rod (9); the drive unit (8) is used to move the guide rod (9) along the extension direction of the guide channel (41), and the guide assembly (7) enables the circuit board to be fine-tuned in position on the tray.

5. The automated silo structure with auxiliary positioning device according to claim 4, characterized in that: The driving unit (8) includes a side control motor (81), a bearing seat (82), a center connecting screw (83) and an inner connecting cylinder (84); the side control motor (81) and the bearing seat (82) are relatively arranged on the connecting plate (4), the guide rod (9) is arranged on the inner connecting cylinder (84), and the inner connecting cylinder (84) is threadedly connected to the center connecting screw (83); one end of the center connecting screw (83) is connected to the output end of the side control motor (81), and the other end is arranged on the bearing seat (82).

6. The automated silo structure with auxiliary positioning device according to claim 5, characterized in that: The guide plate module (10) comprises an air blast pipe (101) arranged on the guide rod (9) and a hose (102) having one end connected to the air blast pipe (101) and the other end connected to a fan; the hose (102) provides air flow to the air blast pipe (101) through the fan, and the air blast pipe (101) is used to blow air to the circuit board to adjust the position of the circuit board on the material tray (2).

7. The automated silo structure with auxiliary positioning device according to claim 6, characterized in that: The guide plate module (10) further comprises a pushing cylinder (103) arranged on the guide rod (9) and parallel to the blast pipe (101), an adapter plate (104) arranged on the output end of the pushing cylinder (103), and a sleeve (105) connected to the adapter plate (104) and sleeved on the blast pipe (101); after the output end of the pushing cylinder (103) is extended and retracted, the sleeve (105) can move along the axial direction of the blast pipe (101).

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