Automatic feeding device for conveying integrated circuit boards

Abstract

The present invention relates to the technical field of integrated circuit board production, and discloses an automatic feeding device for conveying integrated circuit boards, comprising a feeding platform, a lifting mechanism and a feeding mechanism, wherein the feeding platform is provided with two groups of belt conveyors at intervals along a conveying direction perpendicular to the integrated circuit board, a lifting window is provided through the top surface of the feeding platform, the lifting window is located between the two groups of belt conveyors, the lifting mechanism is provided in the lifting window, a storage feeding box is provided just above the lifting window, the feeding mechanism is used for automatically feeding the integrated circuit board in the storage feeding box to the welding position of the welding machine, the storage feeding box is hollow, two support blocks are relatively provided in the storage feeding box, and the support blocks are slidably installed on the storage feeding box. The integrated circuit boards are neatly stacked in the storage feeding box, the feeding time is ensured to be consistent each time, and there will be no empty feeding, and at the same time, the feeding position is consistent each time, thereby improving the welding quality and reducing the welding defect rate.

Description

Technical Field

[0001] The invention relates to the technical field of integrated circuit board production, in particular to an automatic feeding device for conveying integrated circuit boards. Background Art

[0002] Integrated circuit boards are made by using semiconductor manufacturing technology to manufacture many transistors, resistors, capacitors and other components on a small single-crystal silicon wafer, and then combine the components into a complete electronic circuit by using multi-layer wiring or tunnel wiring methods. It is represented by the letter "IC" (also used as the text symbol "N", etc.) in the circuit. Integrated circuit boards can be divided into two categories: analog integrated circuit boards and digital integrated circuit boards according to their functions and structures. Analog is used to generate, amplify and process various analog signals (referring to signals whose amplitude changes with time. For example, the audio signal of a semiconductor radio, the tape signal of a recorder, etc.), while digital is used to generate, amplify and process various digital signals (referring to signals with discrete values ​​in time and amplitude. For example, the audio signal and video signal played by VCD and DVD). During the production process, electronic components need to be welded on integrated circuit boards. Due to the industry's demand for production efficiency, the integrated circuit boards need to be continuously fed to the welding machine for processing. Currently, the conveyor belt and the six-axis robot arm are used to complete the loading. However, the conveyor belt cannot locate the integrated circuit boards on it, and the intervals between the integrated circuit boards on the conveyor belt are different, resulting in the six-axis robot being unable to accurately grasp the integrated motor board for loading. Secondly, the spacing between the integrated circuit boards is different, resulting in the six-axis robot being unable to adjust the loading time according to the spacing between the integrated circuit boards, which easily leads to empty loading, and the poor loading accuracy increases the welding defect rate. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic feeding device for conveying integrated circuit boards, which can feed materials continuously and accurately and reduce the welding defect rate.

[0004] The object of the present invention is achieved through the following technical solutions: an automatic feeding device for conveying integrated circuit boards, comprising a feeding platform, a lifting mechanism and a feeding mechanism, wherein the feeding platform is provided with two groups of belt conveyors at intervals along a conveying direction perpendicular to the integrated circuit board, a lifting window is provided through the top surface of the feeding platform, the lifting window is located between the two groups of belt conveyors, the lifting mechanism is arranged in the lifting window, a storage feeding box is arranged just above the lifting window, and the feeding mechanism is used to automatically feed the integrated circuit board in the storage feeding box to the welding position of the welding machine;

[0005] The jacking mechanism includes a jacking column, a jacking plate, a lifting beam and a side top plate. The jacking column has the freedom to move along the height direction of the loading platform. The top of the jacking column is connected to the jacking plate. Avoidance grooves are provided on both sides of the jacking plate from top to bottom. The lifting beam is slidably sleeved on the jacking column. The lifting beam has the freedom to move along the height direction of the jacking column. The side top plates are provided on both sides of the jacking plate, and the side top plates are connected to the lifting beam.

[0006] The storage loading box is hollow, and two support blocks are relatively arranged in the storage loading box. The support blocks are slidably installed on the storage loading box to change the distance between the two support blocks in the horizontal direction.

[0007] Furthermore, the lifting column fixing sleeve is provided with a shaft shoulder and a limit ring, the limit ring is located above the shaft shoulder, the lifting beam is located between the shaft shoulder and the limit ring, the shaft shoulder is sleeved with an electromagnet, the bottom of the lifting beam is embedded with a permanent magnet ring, the lifting column is sleeved with a spring, the spring is located between the lifting beam and the shaft shoulder, and the two ends of the spring are respectively connected to the shaft shoulder and the lifting beam, when the spring is in normal state, the top surface of the side top plate is flush with the top surface of the lifting plate.

[0008] Furthermore, a vacuum chamber is provided in the jacking plate, a plurality of adsorption holes are opened on the top of the jacking plate, the adsorption holes are connected to the vacuum chamber, the jacking plate is connected to the vacuum pump through a pipeline, and the jacking mechanism also includes a vertically arranged jacking cylinder, and the telescopic shaft of the jacking cylinder is connected to the jacking column.

[0009] Furthermore, an installation groove is horizontally opened on the inner wall of the storage feeding box corresponding to the support block, and a feeding spring is arranged in the installation groove. One end of the support block is slidably adapted in the installation groove, and the two ends of the feeding spring are respectively connected to the storage feeding box and the support block. A wedge-shaped surface is provided on the bottom of the support block. When the feeding spring is in normal state, the support block extends from one end of the feeding spring to the storage feeding box.

[0010] Furthermore, the belt conveyor includes a top plate, a driving shaft and a driven shaft, the top plate moves along a conveying direction perpendicular to the integrated circuit board, the driving shaft and the driven shaft are both rotatably connected to the bottom of the top plate, the driving shaft and the driven shaft are spaced apart along the conveying direction of the integrated circuit board, the driving shaft and the driven shaft are respectively provided with a driving pulley and a driven pulley, the driving pulley is connected to the driven pulley through a conveying belt transmission, a motor is installed on the top of the top plate, the output shaft of the motor is transmission-connected to the driving shaft, a pushing cylinder is horizontally installed on the loading platform, the telescopic shaft of the pushing cylinder is connected to the top plate, a plurality of balls are rotatably arranged on the top of the loading platform, the top surface of the ball, the top surface of the lifting plate and the bottom surface of the conveying belt are flush.

[0011] Furthermore, the top plate is provided with a tensioning groove along a conveying direction perpendicular to the integrated circuit board, a tensioning slider is slidably arranged in the tensioning groove, a tensioning wheel is rotatably arranged at the bottom of the tensioning slider, the conveying belt passes around the tensioning wheel, a tensioning spring is arranged in the tensioning groove, the two ends of the tensioning spring are respectively connected to the tensioning slider and the top plate, a mounting screw is threaded through the top plate, the tail of the mounting screw extends into the tensioning groove, and the axis of the mounting screw is arranged parallel to the axis of the tensioning spring.

[0012] Furthermore, the transverse side walls of the jacking window are connected with transverse splicing blocks by bolts, and the longitudinal side walls of the jacking window are connected with longitudinal splicing blocks by bolts, and the longitudinal splicing blocks cooperate with the transverse splicing blocks to change the size of the jacking window. The jacking plate is detachably mounted on the jacking column, and the side top plate is slidably connected to the lifting beam, and the side top plate moves closer to or away from the jacking plate.

[0013] Furthermore, a rectangular plug is fixed to the bottom of the jacking plate, a rectangular groove is provided on the top of the jacking column, the rectangular plug is adapted in the rectangular groove, a locking sleeve is provided on the jacking column, an internal threaded hole and a circular hole are provided on the top of the locking sleeve in sequence from top to bottom, the diameter of the internal threaded hole is larger than the diameter of the circular hole, the jacking column is movably inserted into the circular hole, a threaded ring is fixedly provided on the rectangular plug, and an abutment ring is fixedly provided on the jacking column, and when the abutment ring abuts on the step formed by the internal threaded hole and the circular hole, the threaded ring is threadably adapted in the internal threaded hole.

[0014] Further, a lead screw groove and a sliding groove are formed in the top of the lifting cross beam along the conveying direction of the integrated circuit board. The lead screw groove and the sliding groove are distributed on both sides of the jacking column. A bidirectional lead screw is rotatably arranged in the lead screw groove. Lead screw sliders are threadedly sleeved on two thread segments with opposite thread pitches of the bidirectional lead screw. Two side top plates are respectively mounted on the tops of the two lead screw sliders. One end of the bidirectional lead screw penetrates out of the lifting cross beam and is fixed with an adjusting nut. A guiding slide bar is fixed in the sliding groove. A guiding slider is fixed to the bottom of the side top plate. The guiding slider is slidably sleeved on the guiding slide bar.

[0015] Further, it further includes a belt conveyor. The conveying surface of the belt conveyor is inclined along the direction perpendicular to the conveying direction of the integrated circuit board. A vibrator is arranged on the conveying frame of the belt conveyor. A plurality of adjusting balls are rotatably arranged on the conveying surface of the belt conveyor. The feeding mechanism includes a feeding frame, a horizontal sliding seat and a negative pressure suction cup. The shape of the feeding frame is a U shape. A lead screw transmission pair is arranged on the feeding frame along its own length direction. The horizontal sliding seat is mounted on the sliding seat of the lead screw transmission pair. A feeding cylinder is vertically mounted at the bottom of the horizontal sliding seat. The telescopic shaft of the feeding cylinder is connected with a base. The bottom of the base is rotatably connected with a main shaft. The main shaft is connected with a rotating substrate. The negative pressure suction cup is mounted at the bottom of the rotating substrate.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The two groups of belt conveyors form a conveying space matching the size of the integrated circuit board, making the conveying accuracy of the integrated circuit board more precise, enabling the integrated circuit board to be precisely conveyed above the jacking plate, and jacking the integrated circuit board into the storage feeding box through the jacking plate, so that the integrated circuit boards are neatly stacked in the storage feeding box, ensuring that the feeding time is the same each time, preventing the situation of empty feeding, and at the same time, the feeding position is the same each time, enabling the integrated circuit board to be precisely fed onto the welding station of the welding machine tool, improving the welding quality and reducing the welding defect rate.

[0018] 2. When the jacking plate jacks the integrated circuit board into the storage feeding box, the side top plate moves upward, making the top surface of the side top plate located above the top surface of the jacking plate, causing the side top plate to squeeze the support block to move, so that the integrated circuit board can be jacked above the support block without contacting the support block. After the jacking plate resets, the integrated circuit board falls on the support block to complete the jacking feeding, ensuring that the integrated circuit board will not be squeezed during the jacking feeding process and protecting the integrated circuit board from being damaged. Description of the Drawings

[0019] Figure 1 is a three-dimensional schematic diagram of an automatic feeding device for the conveying of integrated circuit boards according to the present invention Figure 1 ;

[0020] Figure 2 A three-dimensional schematic diagram of a lifting mechanism in an automatic loading device for conveying integrated circuit boards according to the present invention Figure 1 ;

[0021] Figure 3 A three-dimensional schematic diagram of a lifting mechanism in an automatic loading device for conveying integrated circuit boards according to the present invention Figure 2 ;

[0022] Figure 4 It is a schematic diagram of the internal structure of a lifting mechanism in an automatic loading device for conveying integrated circuit boards according to the present invention;

[0023] Figure 5 This is a diagram of the lifting state of a lifting mechanism in an automatic loading device for conveying integrated circuit boards according to the present invention;

[0024] Figure 6 A three-dimensional schematic diagram of an automatic loading device for conveying integrated circuit boards according to the present invention Figure 2 ;

[0025] Figure 7 A three-dimensional schematic diagram of an automatic loading device for conveying integrated circuit boards according to the present invention Figure 3 ;

[0026] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0027] Fig. 9 It is a top view of a loading platform in an automatic loading device for conveying integrated circuit boards according to the present invention;

[0028] Fig.10 A three-dimensional schematic diagram of an automatic loading device for conveying integrated circuit boards according to the present invention Figure 4 ;

[0029] In the figure, 1-feeding platform, 2-lifting window, 3-storage feeding box, 4-lifting column, 5-lifting plate, 6-lifting beam, 7-side top plate, 8-belt conveyor, 9-support block, 10-shaft shoulder, 11-limiting ring, 12-electromagnet, 13-permanent magnetic ring, 14-spring, 15-vacuum chamber, 16-adsorption hole, 17-lifting cylinder, 18-installation groove, 19-feeding spring, 20-wedge surface, 21-top plate, 22-driving shaft, 23-driven shaft, 24-driving pulley, 25-driven pulley, 26-conveyor belt, 27-motor, 28-pushing cylinder, 29-ball, 30-tensioning groove, 31-tensioning slider, 3 2-tensioning wheel, 33-tensioning spring, 34-installing screw, 35-transverse splicing block, 36-longitudinal splicing block, 37-rectangular plug block, 38-rectangular groove, 39-locking sleeve, 40-internal threaded hole, 41-threaded ring, 42-abutment ring, 43-round hole, 44-screw groove, 45-slide, 46-bidirectional threaded screw, 47-screw slider, 48-adjusting nut, 49-guide slide, 50-guide slider, 51-belt conveyor, 52-adjusting ball, 53-feeding rack, 54-horizontal slide, 55-negative pressure suction cup, 56-screw transmission pair, 57-feeding cylinder, 58-base, 59-avoidance groove, 60-rotating base plate. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0031] Embodiment 1: Figures 1 to 10As shown, an automatic feeding device for conveying integrated circuit boards includes a feeding platform 1, a lifting mechanism and a feeding mechanism. The feeding platform 1 is provided with two groups of belt conveyors 8 at intervals along a conveying direction perpendicular to the integrated circuit board. A lifting window 2 is provided through the top surface of the feeding platform 1. The lifting window 2 is located between the two groups of belt conveyors 8. The lifting mechanism is arranged in the lifting window 2. A storage feeding box 3 is arranged directly above the lifting window 2. The feeding mechanism is used for automatically feeding the integrated circuit board in the storage feeding box 3 to the welding position of the welding machine. The feeding mechanism also includes a belt conveyor 51. The conveying surface of the belt conveyor 51 is tilted and arranged perpendicular to the conveying direction of the integrated circuit board. A vibrator is arranged on the conveying frame of the belt conveyor 51. A plurality of adjusting balls 52 are rotatably arranged on the conveying surface of the belt conveyor 51. The arrangement of the adjusting balls 52 reduces the friction between the integrated circuit board and the belt conveyor 51, so that the integrated circuit board can be easily moved on the belt conveyor 51 for posture adjustment. The integrated circuit board to be processed is placed on the belt conveyor 51, and the posture of the integrated circuit board is adjusted by the belt conveyor 51. Due to the conveying of the belt conveyor 51, the integrated circuit board can be easily moved on the belt conveyor 51. The conveying surface is inclined, and the belt conveyor 51 is vibrated with the exciter, so that the integrated circuit board moves to the lower end of the conveying surface of the belt conveyor 51, so that the side of the integrated circuit board fits on the side wall of the belt conveyor 51, and the posture adjustment of the integrated circuit board is completed. The conveying end of the belt conveyor 51 is connected to the input end of the two groups of belt conveyors 8, and the lower end surface of the belt conveyor 51 is flush with the conveying surface of one of the belt conveyors 8, so that the integrated circuit board with the posture adjustment completed enters between the two groups of belt conveyors 8, and the integrated circuit board is conveyed by the two groups of belt conveyors 8. The board is transported forward to realize the accurate transportation of the integrated circuit board. When the integrated circuit board is transported to the lifting mechanism, the transportation is stopped. Then, the lifting mechanism is started, and the lifting mechanism pushes the integrated circuit board into the storage loading box 3, so that the integrated circuit boards are neatly stacked in the storage loading box 3, ensuring that there are integrated circuit boards in the storage loading box 3 each time the loading mechanism loads, and ensuring that the loading time is consistent each time, and there will be no empty loading. At the same time, the loading position is consistent each time, so that the integrated circuit board can be accurately loaded on the welding station of the welding machine tool, improving the welding quality and reducing the welding defect rate;The jacking mechanism includes a jacking column 4, a jacking plate 5, a lifting beam 6 and a side top plate 7. The jacking column 4 has the freedom to move in the height direction of the loading platform 1. The top of the jacking column 4 is connected to the jacking plate 5. Both sides of the jacking plate 5 are provided with avoidance grooves 59 from top to bottom. The lifting beam 6 is slidably mounted on the jacking column 4. The lifting beam 6 has the freedom to move in the height direction of the jacking column 4. Side top plates 7 are provided on both sides of the jacking plate 5. The side top plates 7 are connected to the lifting beam 6. The storage loading box 3 is hollow. Two support blocks 9 are relatively arranged in the storage loading box 3. The support blocks 9 are slidably mounted on the storage loading box 3 , which is used to change the horizontal spacing between the two support blocks 9. The loading platform 1 is provided with a baffle plate on the side of the lifting window 2 away from the belt conveyor 51. The baffle plate is flush with the side wall of the lifting plate 5 away from the belt conveyor 51. The belt conveyor 8 stops conveying after conveying the integrated circuit board to the baffle plate, so that the integrated circuit board is positioned and conveyed on the lifting plate 5. The size of the lifting plate 5 is the same as that of the integrated circuit board. At this time, the integrated circuit board is facing the bottom opening of the storage loading box 3. Then, the lifting column 4 drives the lifting plate 5 to move upward close to the storage loading box 3. While moving upward, the lifting beam 6 drives the side top plate 7 at the top The lifting column 4 slides upward, so that the top surface of the side top plate 7 is higher than the upper surface height of the integrated circuit board, so that the side top plate 7 squeezes the support block 9, and the support block 9 moves away from the integrated circuit board, so that the lifting plate 5 can smoothly lift the integrated circuit board to the top of the support block 9, and the integrated circuit board will not contact the support block 9 during the lifting process, and will not cause the integrated circuit board to be squeezed and damaged. When the integrated circuit board is located above the support block 9, at this time, all the integrated circuit boards in the storage loading box 3 are stacked together vertically, conveniently and neatly, and supported by the lifting plate 5, and then the lifting beam 6 drives the side top plate 7 Move downward, so that the side top plate 7 moves to the bottom of the support block 9. At this time, the support block 9 moves and resets, so that the support block 9 is inserted into the avoidance groove 59 of the lifting plate 5. Finally, the lifting column 4 drives the lifting plate 5 to move downward and reset. Due to the setting of the avoidance groove 59, the support block 9 blocks the integrated circuit board from moving downward, so that the lifting plate 5 and the integrated circuit board can be separated smoothly, so that the integrated circuit boards are stacked together and supported by the support block 9, and then the integrated circuit boards are neatly stacked in the storage loading box 3, so that the loading position of the loading mechanism is consistent each time, and the loading interval time is consistent, so as to achieve accurate and continuous loading;In specific implementation, since the welding groove of the welding platform of the welding machine tool is in the shape of a quadrangular frustum and its size gradually decreases from top to bottom, it can slightly adjust the position of the integrated circuit board to a certain extent, eliminate the feeding error, and further locate the welding position of the integrated circuit board. Due to the setting of the side top plate 7, the inner cavity size of the storage feeding box 3 is slightly larger than the size of the integrated circuit board. To prevent the integrated circuit board from shifting in the storage feeding box 3 and affecting the feeding accuracy, the side top plate 7 is set as a thin plate structure, and the thickness of the side top plate 7 is within the feeding error allowed by the welding machine tool. Even if the integrated circuit board shifts in the storage feeding box 3, it is within the allowed error range. After the integrated circuit board is fed into the welding groove, the position of the integrated circuit board can be slightly adjusted through the welding groove, ensuring that the welding position is more accurate and improving the welding quality.

[0032] Furthermore, as Figure 1 and Fig.10 shown, the feeding mechanism includes a feeding frame 53, a horizontal sliding seat 54, and a negative pressure suction cup 55. The shape of the feeding frame 53 is in the shape of a "冂". A lead screw transmission pair 56 is arranged on the feeding frame 53 along its own length direction. The horizontal sliding seat 54 is installed on the sliding seat of the lead screw transmission pair 56. A feeding cylinder 57 is vertically installed at the bottom of the horizontal sliding seat 54. The telescopic shaft of the feeding cylinder 57 is connected to a base 58. The bottom of the base 58 is rotatably connected to a main shaft, and the main shaft is connected to a rotating substrate 60. The negative pressure suction cup 55 is installed at the bottom of the rotating substrate 60. The welding machine tool is located within the bottom opening of the feeding frame 53, so that the welding machine tool is within the working range of the feeding mechanism. The horizontal sliding seat 54 is driven to perform a horizontal linear motion by the lead screw transmission pair 56 to drive the negative pressure suction cup 55 to switch positions between the storage feeding box 3 and the welding machine tool. The negative pressure suction cup 55 is driven to move up and down by the feeding cylinder 57, so that the negative pressure suction cup 55 can extend into the storage feeding box 3. The negative pressure suction cup 55 is connected to a negative pressure pump through an air pipe, and the integrated circuit board is adsorbed by negative pressure. The angle of the integrated circuit board can be adjusted according to the installation position of the welding machine tool through the rotating substrate 60. Generally, the welding machine tool is installed parallel to the feeding platform 1. At this time, the rotating substrate 60 does not need to work to drive the integrated circuit board to deflect. The integrated circuit board is directly fed from the storage feeding box 3 into the welding groove through the cooperation of the feeding cylinder 57 and the lead screw transmission pair 56, realizing automatic continuous feeding. The feeding mechanism has a larger working range than the six-axis robot arm and lower costs.

[0033] Furthermore, as Figure 1 and Figure 5As shown, a mounting groove 18 is horizontally provided on the inner side wall of the storage loading box 3 corresponding to the support block 9, and a loading spring 19 is arranged in the mounting groove 18. One end of the support block 9 is slidably adapted in the mounting groove 18, and the two ends of the loading spring 19 are respectively connected to the storage loading box 3 and the support block 9. A wedge-shaped surface 20 is provided at the bottom of the support block 9. When the loading spring 19 is in a normal state, the end of the support block 9 away from the loading spring 19 extends into the storage loading box 3, and the side top plate 7 first contacts the wedge-shaped surface 20 of the support block 9. Under the guidance of the wedge-shaped surface 20, The support block 9 squeezes the feeding spring 19 to move into the installation groove 18, so that the lifting plate 5 carries the integrated circuit board through the support block 9. When the integrated circuit board is lifted to the top of the support block 9, the side top plate 7 moves downward to the bottom of the support block 9. At this time, the support block 9 is reset and inserted into the avoidance groove 59 under the reaction force of the feeding spring 19. When the lifting plate 5 is reset downward, the integrated circuit board can remain on the support block 9 smoothly, so that there is no need to set up additional power equipment, and the support block 9 can cooperate with the movement to complete the stacking of the integrated circuit boards.

[0034] Embodiment 2: Based on Embodiment 1, Figures 1 to 5 As shown, the fixed sleeve of the lifting column 4 is provided with a shoulder 10 and a limit ring 11, the limit ring 11 is located above the shoulder 10, the lifting beam 6 is located between the shoulder 10 and the limit ring 11, the shoulder 10 is provided with an electromagnet 12, the bottom of the lifting beam 6 is embedded with a permanent magnet ring 13, the lifting column 4 is provided with a spring 14, the spring 14 is located between the lifting beam 6 and the shoulder 10, and the two ends of the spring 14 are respectively connected to the shoulder 10 and the lifting beam 6, when the spring 14 is in a normal state, the top surface of the side top plate 7 is flush with the top surface of the lifting plate 5, when the integrated circuit board is transported to the lifting plate 5, the spring 14 is in a normal state, so that the integrated circuit board can be smoothly transported through the side top plate 7 to the top of the lifting plate 5, and the integrated circuit board is lifted to the storage loading box 3 When the integrated circuit board is lifted to the top of the support block 9, the electromagnet 12 changes the circuit direction to generate a magnetic pole with the same magnetic property as the permanent magnet ring 13, so as to repel the permanent magnet ring 13 and drive the lifting beam 6 to move upward, so that the top surface of the side top plate 7 is higher than the upper surface height of the integrated circuit board on the lifting plate 5. When the integrated circuit board is lifted to the top of the support block 9, the electromagnet 12 changes the circuit direction to generate a magnetic pole with the opposite magnetic property to the permanent magnet ring 13, so as to attract the permanent magnet ring 13 and drive the lifting beam 6 to move downward, so that the side top plate 7 moves to the bottom of the support block 9, so that the support block 9 can smoothly reset and support the integrated circuit board. In specific implementation, the lifting beam 6 can also be driven by a cylinder, and the cylinder is vertically installed on the lifting column 4. The telescopic shaft of the cylinder is connected to the lifting beam 6, and the position of the side top plate 7 is adjusted by the telescopic movement of the cylinder.

[0035] Furthermore, a vacuum chamber 15 is provided in the lifting plate 5, and a plurality of adsorption holes 16 are provided on the top of the lifting plate 5. The adsorption holes 16 are connected to the vacuum chamber 15. The lifting plate 5 is connected to a vacuum pump through a pipeline. The lifting mechanism also includes a vertically arranged lifting cylinder 17. The telescopic shaft of the lifting cylinder 17 is connected to the lifting column 4. The lifting column 4 is driven up and down by the telescopic movement of the lifting cylinder 17, and the lifting column 4 drives the lifting plate 5 to move up and down to lift the integrated circuit board thereon into the storage loading box 3; when the integrated circuit board is accurately transported to the lifting plate 5, the vacuum pump is started to generate negative pressure in the vacuum chamber 15 of the lifting plate 5, and acts on the integrated circuit board through the adsorption holes 16, so as to lock the position of the integrated circuit board, and ensure that there will be no deviation during the lifting process. When the integrated circuit board is lifted to the top of the support block 9, the vacuum pump is stopped, so that the integrated circuit board can be smoothly separated from the lifting plate 5 and remain on the support block 9, completing the stacking of the integrated circuit board, and ensuring that the loading time is consistent.

[0036] Embodiment 3: Based on Embodiment 2, Figure 1 , Figure 6 , Figure 7 and Fig.10 As shown, the belt conveyor 8 includes a top plate 21, a driving shaft 22 and a driven shaft 23. The top plate 21 moves along a conveying direction perpendicular to the integrated circuit board. The driving shaft 22 and the driven shaft 23 are both rotatably connected to the bottom of the top plate 21. The driving shaft 22 and the driven shaft 23 are arranged at intervals along the conveying direction of the integrated circuit board. The driving shaft 22 and the driven shaft 23 are respectively provided with a driving pulley 24 and a driven pulley 25. The driving pulley 24 is connected to the driven pulley 25 through a conveying belt 26. A motor 27 is installed on the top of the top plate 21. The output shaft of the motor 27 is connected to the driving shaft 22. A pushing cylinder 28 is horizontally installed on the feeding platform 1. The telescopic shaft of the pushing cylinder 28 is connected to the top plate 21. A plurality of balls 29 are rotatably arranged on the top of the feeding platform 1. The balls 29 are arranged on the top of the feeding platform 1. 9, the top surface of the lifting plate 5 and the bottom surface of the conveying belt 26 are flush with each other, the motor 27 drives the driving shaft 22 to rotate, the driving shaft 22 drives the driving pulley 24 to rotate, the driving pulley 24 drives the driven pulley 25 to rotate through the conveying belt 26, so that the conveying belt 26 reciprocates, and the conveying belts 26 of the two groups of belt conveyors 8 contact the two side walls of the integrated circuit board respectively to drive the integrated circuit board to move forward, and the friction between the integrated circuit board and the loading platform 1 is increased by the ball bearing 29, so that the belt conveyor 8 can smoothly and stably convey the integrated circuit board, and the positions of the two groups of belt conveyors 8 are adjusted by pushing the cylinder 28 to extend and retract, so that the spacing between the two groups of belt conveyors 8 adapts to the size of the integrated circuit board, and can convey integrated circuit boards of different sizes.

[0037] Furthermore, if Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the top plate 21 is provided with a tensioning groove 30 along a conveying direction perpendicular to the integrated circuit board, a tensioning slider 31 is slidably arranged in the tensioning groove 30, a tensioning wheel 32 is rotatably arranged at the bottom of the tensioning slider 31, and the conveying belt 26 passes around the tensioning wheel 32, a tensioning spring 33 is arranged in the tensioning groove 30, and the two ends of the tensioning spring 33 are respectively connected to the tensioning slider 31 and the top plate 21, and a mounting screw 34 is threadedly penetrated on the top plate 21, and the tail of the mounting screw 34 extends into the tensioning groove 30, and the axis of the mounting screw 34 is arranged parallel to the axis of the tensioning spring 33, and the tensioning spring 33 is always in a stretched state, so that the conveying belt 26 is in a tensioned state, so that the conveying belt 26 can be stably conveyed The installation screw 34 is arranged to facilitate the installation of the conveyor belt 26. Specifically, when installing the conveyor belt 26, the installation screw 34 is screwed in so that the installation screw 34 pushes the tensioning slider 31 to move toward the driving pulley 24, thereby reducing the conveying length between the driving pulley 24, the driven pulley 25 and the tensioning wheel 32, so that the conveyor belt 26 can be easily mounted on the driving pulley 24, the driven pulley 25 and the tensioning wheel 32. Finally, the installation screw 34 is screwed outward, and the tensioning slider 31 drives the tensioning wheel 32 to move away from the driving pulley 24 under the action of the tensioning spring 33, thereby increasing the conveying length, thereby making the conveyor belt 26 in a tensioned state, thereby ensuring a better conveying effect.

[0038] Embodiment 4: In actual production, the sizes of integrated circuit boards vary. In order to increase the versatility of the automatic feeding device, based on the embodiment 3, Figures 2 to 9 As shown, the lateral side walls of the lifting window 2 are connected with lateral splicing blocks 35 by bolts, and the longitudinal side walls of the lifting window 2 are connected with longitudinal splicing blocks 36 by bolts. The longitudinal splicing blocks 36 cooperate with the lateral splicing blocks 35 to change the size of the lifting window 2. The lifting plate 5 is detachably installed on the lifting column 4, and the side top plate 7 is slidably connected to the lifting beam 6. The side top plate 7 moves close to or away from the lifting plate 5. The lifting plate 5 and the storage loading box 3 are replaced and matched according to the size of the integrated circuit board to be processed, and the size of the lifting window 2 and the position of the side top plate 7 are adjusted accordingly. Specifically, the storage loading box 3 is installed on the support frame by a bolt assembly, which is convenient for disassembly and replacement of the storage loading box 3. The size of the lifting window 2 is proportionally adjusted by installing and disassembling different numbers of longitudinal splicing blocks 36 and transverse splicing blocks 35, so that the size of the lifting window 2 can match integrated circuit boards of various sizes and types, thereby enabling the loading of various types of integrated circuit boards.

[0039] Furthermore, a rectangular plug 37 is fixed to the bottom of the jacking plate 5, a rectangular groove 38 is provided on the top of the jacking column 4, the rectangular plug 37 is adapted to the rectangular groove 38, a locking sleeve 39 is provided on the jacking column 4, and an internal threaded hole 40 and a circular hole 43 are provided on the top of the locking sleeve 39 from top to bottom, the diameter of the internal threaded hole 40 is larger than the diameter of the circular hole 43, the jacking column 4 is movably inserted into the circular hole 43, a threaded ring 41 is fixedly provided on the rectangular plug 37, and an abutting ring 42 is fixedly provided on the jacking column 4. When the abutting ring 42 abuts on the step formed by the internal threaded hole 40 and the circular hole 43, the threaded ring 41 is threadedly adapted to the internal threaded hole 40, the lifting column 4 is connected to the middle part of the lifting plate 5. The specific installation method is: insert the rectangular plug 37 of the lifting plate 5 into the rectangular groove 38 to complete the positioning of the lifting plate 5 and the lifting column 4, and then screw the locking sleeve 39 on the threaded ring 41. When the top of the locking sleeve 39 contacts the lifting plate 5, the abutment ring 42 abuts on the step formed by the internal threaded hole 40 and the circular hole 43, thereby connecting the lifting column 4 and the lifting plate 5 together; when disassembling the lifting plate 5, directly unscrew the locking sleeve 39 to separate the locking sleeve 39 from the threaded ring 41, and then directly lift the lifting plate 5 upwards to complete the removal of the lifting plate 5. The operation is simple and quick.

[0040] Furthermore, if Figures 2 to 5 As shown, a screw groove 44 and a slide groove 45 are provided at the top of the lifting beam 6 along the conveying direction of the integrated circuit board. The screw groove 44 and the slide groove 45 are distributed on both sides of the lifting column 4. A bidirectional threaded screw 46 is rotatably arranged in the screw groove 44. Two thread segments of the bidirectional threaded screw 46 with opposite thread rotation directions are threadedly sleeved with a screw slider 47. The two side top plates 7 are respectively mounted on the top of the two screw sliders 47. One end of the bidirectional threaded screw 46 passes through the lifting beam 6 and is fixed with an adjusting nut 48. A guide slide rod 49 is fixed in the slide groove 45. A guide slide rod 50 is fixed at the bottom of the side top plate 7. The guide slide rod 50 is slidably sleeved on the guide slide rod 49. When replacing the lifting plate 5 and adjusting the position of the side top plate 7, the lifting cylinder 17 drives the entire lifting mechanism to move to the bottom of the loading platform 1, so that there is enough space to replace the lifting plate 5. First, replace the lifting plate 5, and then adjust the position of the side top plate 7 accordingly. Turn the adjusting nut 48 to drive the bidirectional threaded screw 46 to rotate. Since the threads of the two screw sliders 47 are rotated in opposite directions, the moving directions of the two screw sliders 47 are opposite. The screw sliders 47 drive the side top plate 7 to move close to the lifting plate 5, so that the side top plate 7 contacts the lifting plate 5, and the position adjustment of the side top plate 7 is completed. Finally, the lifting cylinder 17 drives the lifting mechanism to reset upward, turn on the machine, and automatically load the integrated circuit board.

Claims

1. An automatic feeding device for conveying integrated circuit boards, It is characterized in that The invention comprises a loading platform (1), a lifting mechanism and a loading mechanism, wherein the loading platform (1) is provided with two groups of belt conveyors (8) arranged at intervals along a conveying direction perpendicular to the integrated circuit board, a lifting window (2) is provided through the top surface of the loading platform (1), the lifting window (2) is located between the two groups of belt conveyors (8), the lifting mechanism is arranged in the lifting window (2), a storage loading box (3) is arranged directly above the lifting window (2), and the loading mechanism is used for automatically loading the integrated circuit board in the storage loading box (3) to the welding position of the welding machine; The jacking mechanism comprises a jacking column (4), a jacking plate (5), a lifting beam (6) and a side top plate (7); the jacking column (4) has the freedom to move along the height direction of the loading platform (1); the top of the jacking column (4) is connected to the jacking plate (5); avoidance grooves (59) are provided on both sides of the jacking plate (5) from top to bottom; the lifting beam (6) is slidably mounted on the jacking column (4); the lifting beam (6) has the freedom to move along the height direction of the jacking column (4); the side top plates (7) are provided on both sides of the jacking plate (5); and the side top plates (7) are connected to the lifting beam (6); The storage loading box (3) is hollow, and two support blocks (9) are arranged opposite to each other in the storage loading box (3). The support blocks (9) are slidably mounted on the storage loading box (3) to change the distance between the two support blocks (9) in the horizontal direction.

2. An automatic feeding device for conveying integrated circuit boards according to claim 1, It is characterized in that The lifting column (4) is fixedly sleeved with a shaft shoulder (10) and a limiting ring (11), wherein the limiting ring (11) is located above the shaft shoulder (10), and the lifting beam (6) is located between the shaft shoulder (10) and the limiting ring (11). An electromagnet (12) is sleeved on the shaft shoulder (10), and a permanent magnet ring (13) is embedded at the bottom of the lifting beam (6). A spring (14) is sleeved on the lifting column (4), and the spring (14) is located between the lifting beam (6) and the shaft shoulder (10), and two ends of the spring (14) are respectively connected to the shaft shoulder (10) and the lifting beam (6). When the spring (14) is in a normal state, the top surface of the side top plate (7) is flush with the top surface of the lifting plate (5).

3. An automatic feeding device for conveying integrated circuit boards according to claim 1, It is characterized in that A vacuum chamber (15) is arranged in the lifting plate (5), a plurality of adsorption holes (16) are opened on the top of the lifting plate (5), the adsorption holes (16) are connected to the vacuum chamber (15), the lifting plate (5) is connected to a vacuum pump via a pipeline, and the lifting mechanism further comprises a vertically arranged lifting cylinder (17), the telescopic shaft of the lifting cylinder (17) is connected to the lifting column (4).

4. The automatic feeding device for conveying integrated circuit boards according to claim 1, It is characterized in that The storage loading box (3) is provided with a mounting groove (18) horizontally on the inner side wall corresponding to the support block (9), and a loading spring (19) is arranged in the mounting groove (18). One end of the support block (9) is slidably adapted in the mounting groove (18), and the two ends of the loading spring (19) are respectively connected to the storage loading box (3) and the support block (9). The bottom of the support block (9) is provided with a wedge surface (20). When the loading spring (19) is in a normal state, the support block (9) extends away from one end of the loading spring (19) into the storage loading box (3).

5. The automatic feeding device for conveying integrated circuit boards according to claim 1, It is characterized in that The belt conveyor (8) comprises a top plate (21), a driving shaft (22) and a driven shaft (23); the top plate (21) moves along a conveying direction perpendicular to the integrated circuit board; the driving shaft (22) and the driven shaft (23) are both rotatably connected to the bottom of the top plate (21); the driving shaft (22) and the driven shaft (23) are arranged at intervals along the conveying direction of the integrated circuit board; the driving shaft (22) and the driven shaft (23) are respectively provided with a driving pulley (24) and a driven pulley (25); the driving pulley (24) is connected to the driven shaft (25) by a rotating shaft The conveyor belt (26) is connected to the driven pulley (25) in a transmission manner. A motor (27) is installed on the top of the top plate (21). The output shaft of the motor (27) is connected to the driving shaft (22). A push cylinder (28) is installed horizontally on the loading platform (1). The telescopic shaft of the push cylinder (28) is connected to the top plate (21). A plurality of balls (29) are rotatably arranged on the top of the loading platform (1). The top surface of the balls (29), the top surface of the lifting plate (5) and the bottom surface of the conveyor belt (26) are arranged flush.

6. An automatic feeding device for conveying integrated circuit boards according to claim 5, It is characterized in that The top plate (21) is provided with a tensioning groove (30) along a direction perpendicular to the conveying direction of the integrated circuit board. A tensioning slider (31) is slidably arranged in the tensioning groove (30). A tensioning wheel (32) is rotatably arranged at the bottom of the tensioning slider (31). The conveying belt (26) passes around the tensioning wheel (32). A tensioning spring (33) is arranged in the tensioning groove (30). Two ends of the tensioning spring (33) are respectively connected to the tensioning slider (31) and the top plate (21). A mounting screw (34) is threadedly passed through the top plate (21). The tail of the mounting screw (34) extends into the tensioning groove (30). The axis of the mounting screw (34) is arranged parallel to the axis of the tensioning spring (33).

7. An automatic feeding device for conveying integrated circuit boards according to claim 1, It is characterized in that The transverse side wall of the lifting window (2) is connected to a transverse splicing block (35) by bolts, and the longitudinal side wall of the lifting window (2) is connected to a longitudinal splicing block (36) by bolts. The longitudinal splicing block (36) cooperates with the transverse splicing block (35) to change the size of the lifting window (2). The lifting plate (5) is detachably mounted on the lifting column (4), and the side top plate (7) is slidably connected to the lifting beam (6). The side top plate (7) moves closer to or away from the lifting plate (5).

8. An automatic feeding device for conveying integrated circuit boards according to claim 7, It is characterized in that A rectangular plug (37) is fixed at the bottom of the lifting plate (5), a rectangular groove (38) is provided at the top of the lifting column (4), the rectangular plug (37) is adapted to fit in the rectangular groove (38), a locking sleeve (39) is provided on the lifting column (4), an internal threaded hole (40) and a circular hole (43) are provided at the top of the locking sleeve (39) in sequence from top to bottom, the diameter of the internal threaded hole (40) is larger than the diameter of the circular hole (43), the lifting column (4) is movably inserted into the circular hole (43), a threaded ring (41) is fixedly sleeved on the rectangular plug (37), and an abutting ring (42) is fixedly sleeved on the lifting column (4), and when the abutting ring (42) abuts against the step formed by the internal threaded hole (40) and the circular hole (43), the threaded ring (41) is threadably adapted to fit in the internal threaded hole (40).

9. An automatic feeding device for conveying integrated circuit boards according to claim 8, It is characterized in that A screw groove (44) and a slide groove (45) are provided at the top of the lifting beam (6) along the conveying direction of the integrated circuit board. The screw groove (44) and the slide groove (45) are distributed on both sides of the lifting column (4). A bidirectional threaded screw (46) is rotatably arranged in the screw groove (44). Two threaded sections of the bidirectional threaded screw (46) with opposite thread rotation directions are threadedly sleeved with a screw slider (47). The two side top plates (7) are respectively mounted on the tops of the two screw sliders (47). One end of the bidirectional threaded screw (46) passes through the lifting beam (6) and is fixed with an adjusting nut (48). A guide slide rod (49) is fixed in the slide groove (45). A guide slide rod (50) is fixed at the bottom of the side top plate (7). The guide slide rod (50) is slidably sleeved on the guide slide rod (49).

10. An automatic feeding device for conveying integrated circuit boards according to claim 1, It is characterized in that It further includes a belt conveyor (51), the conveying surface of the belt conveyor (51) is inclined along a direction perpendicular to the conveying direction of the integrated circuit board, a vibrator is provided on the conveying frame of the belt conveyor (51), and a plurality of adjusting balls (52) are rotatably arranged on the conveying surface of the belt conveyor (51). The loading mechanism includes a loading frame (53), a horizontal sliding seat (54) and a negative pressure suction cup (55). The shape of the loading frame (53) is a U-shaped, a lead screw transmission pair (56) is arranged on the loading frame (53) along its own length direction, the horizontal sliding seat (54) is installed on the sliding seat of the lead screw transmission pair (56), a loading cylinder (57) is vertically installed at the bottom of the horizontal sliding seat (54), a telescopic shaft of the loading cylinder (57) is connected with a base (58), a main shaft is rotatably connected to the bottom of the base (58), the main shaft is connected with a rotating substrate (60), and the negative pressure suction cup (55) is installed at the bottom of the rotating substrate (60).

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