Automatic stock bin structure with auxiliary falling device

Abstract

The invention discloses an automatic stock bin structure with an auxiliary falling device, and relates to the technical field of automatic stock bins, the automatic stock bin structure comprises two parallel conveying lines, and material trays loaded with circuit boards are conveyed on the conveying lines respectively; the carrying mechanism comprises a first linear motor, a second linear motor, a lifting air cylinder arranged at the moving end of the second linear motor, and a reversing motor arranged at the output end of the lifting air cylinder; the lapping plate is configured on the output end of the reversing motor; the side wall, close to the conveying line, of the lap joint plate is provided with a material suction assembly used for negative pressure adsorption or putting of the circuit board and a position adjusting mechanism located on one side of the material suction assembly and used for adjusting the position of the circuit board on the material disc. According to the invention, qualified circuit boards can accurately and automatically fall to vacant positions of the trays.

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 SMT patching, welding and other processes, the circuit boards will be placed on the tray. The tray is generally a metal tray. After the tray carries a certain number of circuit boards, it can enter the silo. The silo is a tray collection warehouse with an optical detection system, a tray transportation system, and a material transfer mechanism.

[0003] Among them, the tray transportation system mostly includes two production lines, one production line includes the initial inspection area, the qualified area and the unloading area connected by a conveyor belt, and the other production line includes the NG area and the refilling area connected by a conveyor belt. The two production lines run separately, and in terms of position, the NG area corresponds to the initial inspection area, and the refilling area corresponds to the qualified area. The optical inspection system performs optical inspection on the circuit boards on the tray in the initial inspection area to detect whether there are wiring errors, contamination and other problems on the circuit boards that affect subsequent processing. The material transfer mechanism is distributed between all areas of the two production lines, and most of them include a mobile device and a suction device set on the mobile device for negative pressure adsorption of the circuit board. When the optical inspection system detects that there is a problem with the circuit board on the tray in the initial inspection area, the mobile device can carry the suction device to suck out the problematic circuit board in the initial inspection area, and then the mobile device can send the suction device and the problematic circuit board to the NG area. Then, the conveyor belt sends the tray from the initial inspection area to the qualified area, and the mobile device can suck the qualified circuit board from the refilling area and send it to the tray located in the qualified area, so that the number of circuit boards in the tray can be replenished. 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 sucked onto the suction device by negative pressure. In order not to touch 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 processed according to their application requirements during the patch process, the weights of various parts of the circuit boards are often not the same. Therefore, after the suction device drops the circuit boards above the material tray, the position of the circuit boards on the material tray cannot be determined, and the circuit boards often fold or overlap with other circuit boards at the corners. When such problems occur, the operator is often required to manually adjust the position of the circuit boards before the material tray can enter the unloading area for 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 a tray is difficult to control.

[0006] Technical solution: The present application provides an automated silo structure with an auxiliary landing device, comprising two parallel transport lines, each of which transports a tray loaded with circuit boards; a transport mechanism, comprising a first linear motor mounted above the transport line, a second linear motor disposed 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 disposed on the moving end of the second linear motor, and a reversing motor disposed on the output end of the lifting cylinder; a lap plate, arranged on the output end of the reversing motor; a suction component for negative pressure adsorption or placement of circuit boards is disposed on the side wall of the lap 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 scheme, 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 to make it fall 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 enabling the negative pressure suction chassis to be installed on the lap board and capable of adjusting the position of the negative pressure suction chassis relative to the lap board.

[0009] By adopting the above technical solution, the air source draws air at the negative pressure suction chassis through the ventilation pipe, so that the negative pressure suction chassis can negatively adsorb the circuit board, and then when the first linear motor and the second linear motor move, the air source can stop sucking the 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 overlap plate.

[0010] Furthermore, the connecting unit includes a plurality of guide wires and locking nuts that can be threadably matched with 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 scheme, after the guide wire rod passes through the lap plate, the locking nut is threadedly connected to the guide wire rod, so that the negative pressure suction chassis can be fixed on the lap plate; and, the operator can adjust the tightness of the locking nut on the guide wire rod to make the negative pressure suction chassis tightly fixed to the bottom wall of the lap plate, or suspended under the lap plate with a gap, so as to facilitate the negative pressure suction chassis to transport circuit boards more stably, or to facilitate 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 lap plate, and the end of the landing rod away from the lap plate is located below the circuit board that is adsorbed by negative pressure on the negative pressure suction chassis; after the output end of the lifting cylinder extends 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 due to the too high landing and uneven weight distribution at various places when the circuit board is dropped, 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 meshed 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 active gear rotates with the output end of the driving motor, and the rotating active 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 making the placed circuit board separate from the overlapping circuit board.

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

[0017] By adopting the above technical solution, the touch plate 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 plate ball is easy to deform, it is easier to fit different parts of the circuit board, and because the outer surface of the touch plate 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 arranged on the lap plate, and the guide rod is arranged on the guide assembly and one end of the guide rod passes through the guide channel; the guide plate module is arranged 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 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 and 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 make the middle screw rotate in the clockwise or counterclockwise direction through the forward or reverse output end, so that the inner cylinder can carry the guide rod to move back and forth between the edge control motor and the bearing seat; in this process, the automatic movement of the guide rod above the material tray is realized, 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 the 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 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 to 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 blower pipe. The moving sleeve can make the airflow blown by the blower 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: 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 tray; after the reversing motor rotates the output end, the suction component can be aligned with the control on the tray, and the lifting cylinder extends the output end to bring the circuit board close to the tray; the suction component releases the circuit board to place it on the tray, and the positioning mechanism is used to adjust the position of the circuit board on the tray; this process calibrates the landing position of the circuit board on the tray by rotating the output end of the reversing motor, and shortens the placement distance of the circuit board above the tray by extending the output end of the lifting cylinder to ensure the stability of the circuit board on the tray; when the position of the circuit board on the tray needs to be adjusted, the positioning mechanism can automatically adjust the position of the circuit board on the tray to ensure that the circuit board is accurately positioned on the empty space on the tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of an automated silo structure with an auxiliary placement device in an embodiment of the present application; Figure 2 It is a schematic diagram used to show the position relationship between two groups of transport lines and material trays in the embodiment of the present application; Figure 3 It is a 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; Figure 4 is a schematic diagram of the positional relationship between the positioning mechanism and the guide assembly on the lap plate in the embodiment of the present application; Figure 5 It is an exploded schematic diagram of the connection relationship of the suction component on the lap plate in the embodiment of the present application; Figure 6 It is a schematic diagram used to display the guide plate module in the embodiment of the present application.

[0028] Description of reference numerals: 1. Transport line; 11. First transport line; 12. Second transport line; 2. Material tray; 21. First carrier tray; 22. Second carrier 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. Connection unit; 531. Lead screw rod; 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. Blowing pipe; 102. Hose; 103. Pushing cylinder; 104. Adapter plate; 105. Sleeve. DETAILED DESCRIPTION

[0029] The embodiment of the present application discloses an automated silo structure with an auxiliary landing device.

[0030] The following is combined with Figure 1-6 This application is described in further detail.

[0031] Reference Figure 1 and Figure 2An automated silo structure with an auxiliary landing device includes two transport lines 1 placed on an operating table, each transport line 1 transporting a material tray 2; specifically, a first transport line 11 and a second transport line 12, 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.

[0032] Reference Figure 2 , the first transport line 11 is in continuous operation, a first carrier 21 is placed on the first transport line 11, and the first carrier 21 is loaded with circuit boards to be inspected. During the continuous operation of the first transport line 11, the optical inspection mechanism located outside the first transport line 11 can perform optical inspection on the circuit boards on the first carrier 21, and identify circuit boards with problems such as wiring errors and contamination on the surface that affect subsequent processing, and the optical inspection mechanism can also take the problem circuit boards out of the first carrier 21 and place them in a specific NG area.

[0033] 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.

[0034] Reference Figure 1 and Figure 3 The automated silo structure with auxiliary placement device also includes a carrier mechanism 3, a lap plate 4 and a material suction assembly 5. The material suction assembly 5 is arranged on the carrier mechanism 3 through the lap plate 4, and the material suction assembly 5 can negatively absorb the qualified circuit boards on the second carrier 22; then, the carrier mechanism 3 can move the material suction assembly 5 and the negatively absorbed circuit boards from the second carrier 22 to above the first carrier 21; the material suction assembly 5 puts the absorbed circuit boards into the first carrier 21 to fill the position on the first carrier 21 that is vacated due to the removal of unqualified circuit boards; finally, the first transport line 11 transfers the first carrier 21 loaded with qualified circuit boards to a designated location to complete the centralized storage of the first carrier 21.

[0035] 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 through a bracket, and 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.

[0036] 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.

[0037] Reference Figure 3 The lifting cylinder 33 is fixed to the moving end of the second linear motor 32 by bolts in the vertical direction, and the output end of the lifting cylinder 33 is far away from the second linear motor 32. The reversing motor 34 can be a servo motor, and the reversing motor 34 is fixed to the output end of the lifting cylinder 33 by bolts in the vertical direction, and the output end of the reversing motor 34 is far away from the lifting cylinder 33.

[0038] Reference Figure 3 The lap plate 4 is welded to the output end of the commutation motor 34 in the horizontal direction. After the commutation motor 34 rotates the output end, the lap plate 4 can rotate along the circumferential direction of the output end of the commutation motor 34.

[0039] 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.

[0040] Reference Figure 4 and Figure 5 , wherein the negative pressure suction chassis 51 is detachably mounted on the side wall of the bridge plate 4 away from the reversing motor 34 through the connecting unit 53. The connecting unit 53 includes a plurality of guide wires 531 and a plurality of sets of locking nuts 532. In this embodiment, the number of the guide wires 531 can be four, the number of the locking nuts 532 can be four, and one set of locking nuts 532 can be threadedly connected to one guide wire 531.

[0041] Reference Figure 5 The four guide wires 531 are respectively vertically welded at the four corners of the top wall of the negative pressure suction chassis 51, and the guide wires 531 can pass through the lap plate 4. After the locking nut 532 is screwed on the guide wires 531, the negative pressure suction chassis 51 can be fixed on the lap plate 4 in two ways.

[0042] 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 screw 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 for stable negative pressure adsorption and transfer of the circuit board.

[0043] Reference Figure 5, the second type, a gap is left between the negative pressure suction chassis 51 and the lap board 4, the locking nut 532 is screwed on the guide wire rod 531, and the bottom wall of the locking nut 532 abuts against the top wall of the lap board 4, and the connection force of the locking nut 532 screwed on the guide wire rod 531 makes the negative pressure suction chassis 51 suspended below the lap board 4. In this case, the distance between the negative pressure suction chassis 51 and the lap board 4 is easy to adjust, which is convenient for the negative pressure suction chassis 51 to negatively adsorb circuit boards of different sizes and thicknesses.

[0044] Reference Figure 1 and Figure 4 , one end of the vent pipe 52 in the length direction is connected to an air source, which can be a vacuum pump. The other end of the vent pipe 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 pipe 52, the negative pressure suction chassis 51 can negatively pressure 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 to make the lap plate 4, the reversing motor 34, the negative pressure suction chassis 51, and the circuit board close to the first carrier 21. The reversing motor 34 rotates the output end to position the negative pressure suction chassis 51 carrying the circuit board 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 base 51 drops the circuit board down, so that the circuit board is placed on the first carrier 21 .

[0045] 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, and the positioning mechanism 6 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 on the first carrier 21. At this time, there is a gap between the bottom wall of the negative pressure suction chassis 51 and the material tray 2. The gap is the maximum distance suitable for the negative pressure suction chassis 51 to put the circuit board. The negative pressure suction chassis 51 positioned at 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 circuit board to be stably positioned in the space of the first carrier 21.

[0046] Reference Figure 4 and Figure 6In order to enable the circuit board that is mistakenly placed on other circuit boards to return to its intended position, the positioning mechanism 6 further includes a driving motor 62, a driving gear 63, a driven gear 64, a positioning rod 65 and a touch plate ball 66 for adjusting the position of the circuit board. The driving motor 62 can be a servo motor, which is fixed to the top wall of the lap plate 4 by bolts, and the output end of the driving motor 62 passes through the lap plate 4 and extends to the bottom of the lap plate 4.

[0047] Reference Figure 4 and Figure 6 The driving gear 63 and the driven gear 64 can be gears meshing with each other, and 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.

[0048] Reference Figure 4 and Figure 6 The adjusting 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 adjusting rod 65 away from the driven gear 64. In this embodiment, the touch plate ball 66 is a rubber ball that can be deformed and has a rough outer surface, and the outer diameter of the touch plate ball 66 is larger than the outer diameter of the adjusting rod 65.

[0049] Reference Figure 4 and Figure 6 When the circuit board overlaps with other circuit boards after being placed on the first carrier 21, the reversing motor 34 can rotate the output end to move the adjustment rod 65 to a position close to the circuit board. Then, the driving motor 62 rotates the output end to make the driving gear 63 start to rotate, and the rotating driving gear 63 can abut against the driven gear 64 and make the driven gear 64 rotate with it. During the rotation of the driven gear 64, one end of the adjustment rod 65 with the touch plate ball 66 can abut against the circuit board and push the circuit board to the empty position where the circuit board needs to be placed.

[0050] Reference Figure 4 and Figure 6 In order 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 control motor 81, a bearing seat 82, a middle screw rod 83 and an inner connecting cylinder 84.

[0051] Reference Figure 6 , the edge control motor 81 and the bearing seat 82 are respectively installed on the top wall of the lap plate 4 by bolts. In this embodiment, the edge control motor 81 and the bearing seat 82 are located between the drive motor 62 and the reversing motor 34, and the edge control motor 81 is close to the drive motor 62, and the reversing motor 34 is close to the reversing motor 34.

[0052] Reference Figure 6 The top wall of the lap plate 4 is penetrated by a guide channel 41, which extends from the edge control motor 81 to the bearing seat 82. In addition, the inner diameter of the inner cavity of the guide channel 41 is matched with the outer diameter of the guide rod 9. The guide rod 9 is welded to the side wall of the inner connecting cylinder 84 in the vertical direction. In this embodiment, the inner connecting cylinder 84 is an internal threaded cylinder that can be threadedly matched with the middle connecting screw rod 83, and the inner connecting cylinder 84 is threadedly connected to the middle connecting screw rod 83.

[0053] Reference Figure 6 , one end of the middle screw rod 83 in the length direction is coaxially connected to the output end of the side control motor 81 through a flange, and the other end is installed on the bearing seat 82. At this time, one end of the guide rod 9 in the length direction passes through the guide channel 41 and is located below the lap plate 4. When the side control motor 81 rotates the output end clockwise, the middle screw rod 83 can rotate in the clockwise direction, and the inner connecting cylinder 84 can carry the guide rod 9 along the axial direction of the middle screw rod 83 from the side control motor 81 to the bearing seat 82. When the side control motor 81 rotates the output end counterclockwise, the middle screw rod 83 can rotate in the counterclockwise direction, and the inner connecting cylinder 84 can carry the guide rod 9 along the circumferential direction of the middle screw rod 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 in the guide channel 41.

[0054] Reference Figure 6 The guide plate module 10 is installed at one end of the guide rod 9 below the lap plate 4, and the guide plate module 10 includes a blast pipe 101, a hose 102, a push cylinder 103, a transfer 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.

[0055] Reference Figure 6 The hose 102 can be a soft and easily deformable rubber tube. One end of the hose 102 in the length direction is sleeved on the end of the blast tube 101 away from the first carrier 21, and the other end of the hose 102 in the length direction 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 can rotate the output end so that the lap plate 4 carries the blast tube 101 close to the circuit board. Then, the fan can make the air flow pass through the hose 102 and the blast tube 101 in turn and blow it onto the circuit board, thereby fine-tuning the position of the circuit board on the first carrier 21.

[0056] Reference Figure 6The sleeve 105 can be a steel pipe, and the inner diameter of the inner cavity of the sleeve 105 is matched with the outer diameter of the blast pipe 101. The sleeve 105 is sleeved on the blast pipe 101 and can move along the axial direction of the blast pipe 101. In this embodiment, the sleeve 105 is located at one end of the blast pipe 101 close to the first carrier 21.

[0057] 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.

[0058] Reference Figure 6 , the 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 the circuit board through the blast pipe 101, the push cylinder 103 can extend the output end to make the adapter plate 104 carry the sleeve 105 along the axial direction of the blast pipe 101, so that the end of the sleeve 105 away from the blast pipe 101 can abut against the circuit board and push the circuit board to move, thereby realizing further fine adjustment of the position of the circuit board on the first carrier 21.

[0059] The implementation principle of the automatic silo structure with an auxiliary placement device in the embodiment of the present application is as follows: after the negative pressure suction chassis 51 negatively absorbs the qualified circuit board from the second carrier 22, 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 the extension direction of the first transport line 11 and is positioned above a first carrier 21.

[0060] The reversing motor 34 rotates the output end to position the landing rod 61 at the position where the circuit board is to be placed on the first carrier 21, and the lifting cylinder 33 extends the output end to make the end of the landing rod 61 close to the first carrier 21 abut against the first carrier 21. The negative pressure suction chassis 51 drops the circuit board and places the circuit board on the first carrier 21.

[0061] When the circuit board overlaps with other circuit boards on the first carrier 21, the lifting cylinder 33 contracts the output end to move the landing rod 61 above the circuit board. The reversing motor 34 rotates the output end to make the end of the adjustment rod 65 with the touch plate ball 66 close to the overlapping position of the circuit board, and the driving motor 62 rotates the output end to make the driving gear 63 drive the driven gear 64 to rotate. During the rotation of the driven gear 64, the end of the adjustment rod 65 with the touch plate ball 66 can abut and push the circuit board to move, so that the overlapping circuit boards are separated from each other until the circuit board moves to the empty position on the first carrier 21 where it needs to be placed.

[0062] If the position of the circuit board on the first carrier 21 needs to be further adjusted, the reversing motor 34 further rotates the output end to make the end of the blast pipe 101 close to the first carrier 21 close to the circuit board. The fan blows air to the circuit board through the hose 102 and the blast pipe 101 to blow the circuit board so that the circuit board can be finely adjusted on the first carrier 21. In addition, the push cylinder 103 can extend the output end to make the adapter plate 104 carry the sleeve 105 along the axial direction of the blast pipe 101, so as to make the sleeve 105 close to the circuit board and push the circuit board to move further on the first carrier 21, so as to adjust the position of the circuit board on the first carrier 21 and ensure that the circuit board can be accurately positioned on the empty space of the first carrier 21.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automated material bin structure with an auxiliary placement device, comprising two parallel transport lines (1), wherein the transport lines (1) respectively transport material 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) arranged 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) arranged on the moving end of the second linear motor (32), and a reversing motor (34) arranged on an output end of the lifting cylinder (33); A lap plate (4) is arranged on the output end of the reversing motor (34); a suction component (5) for negative pressure adsorption or delivery of circuit boards is arranged on the side wall of the lap plate (4) close to the transport line (1), and a positioning mechanism (6) is located on one side of the suction component (5) for adjusting the position of the circuit board on the material tray (2).

2. The automated silo structure with an auxiliary placement device according to claim 1, characterized in that: The suction component (5) comprises a negative pressure suction chassis (51) and a ventilation pipe (52) having one end connected to the negative pressure suction chassis (51), and the other end of the ventilation pipe (52) is connected to an air source for enabling the negative pressure suction chassis (51) to negatively pressure adsorb or release circuit boards; the suction component (5) also comprises a connecting unit (53) for enabling the negative pressure suction chassis (51) to be mounted on the lap plate (4) and capable of adjusting the position of the negative pressure suction chassis (51) relative to the lap plate (4).

3. The automated silo structure with auxiliary positioning device according to claim 2, characterized in that: The connection unit (53) comprises a plurality of guide wires (531) and locking nuts (532) that can be threadably matched with 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 at the bottom or below the lap plate (4).

4. The automated silo structure with an auxiliary placement device according to claim 2, characterized in that: The positioning mechanism (6) comprises a landing rod (61); the landing rod (61) is arranged on the bottom wall of the overlapping plate (4), and one end of the landing rod (61) away from the overlapping 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).

5. The automated silo structure with auxiliary positioning device according to claim 4, characterized in that: 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 along with the output end of the driving motor (62); the positioning rod (65) is arranged on the bottom wall of the lap plate (4); the driven gear (64) is rotatably arranged on the positioning rod (65), and the driven gear (64) is meshed with the driving gear (63) so as to rotate along with the driving gear (63); the positioning rod (65) is arranged on the bottom wall of the driven gear (64), and the positioning rod (65) that rotates along with the driven gear (64) can adjust the position of the circuit board on the tray (2).

6. The automated silo structure with auxiliary positioning device according to claim 5, characterized in that: The positioning mechanism (6) further comprises a touch plate ball (66), wherein the touch plate ball (66) 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.

7. The automated silo structure with an auxiliary placement device according to claim 4, characterized in that: The positioning mechanism (6) also includes a guide assembly (7), and the guide assembly (7) includes a driving 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 arranged on the lap plate (4), and the guide rod (9) is arranged on the guide assembly (7) and one end thereof passes through the guide channel (41); the guide plate module (10) is arranged on the guide rod (9); the driving unit (8) is used to move the guide rod (9) along the extension direction of the guide channel (41), and the guide plate module (10) is used to adjust the position of the circuit board on the material tray (2).

8. The automated silo structure with auxiliary positioning device according to claim 7, characterized in that: The driving and guiding unit (8) comprises a side control motor (81), a bearing seat (82), a center connecting screw rod (83) and an inner connecting cylinder (84); the side control motor (81) and the bearing seat (82) are arranged on the overlapping plate (4) relative to each other, 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 rod (83); one end of the center connecting screw rod (83) is connected to the output end of the side control motor (81), and the other end is arranged on the bearing seat (82).

9. The automated silo structure with auxiliary positioning device according to claim 8, 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).

10. The automated silo structure with auxiliary positioning device according to claim 9, characterized in that: The guide plate module (10) further comprises a push 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 push 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 push cylinder (103) is extended and retracted, the sleeve (105) can move along the axial direction of the blast pipe (101).

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