Intelligent tray placing device for BGA package

Abstract

The application discloses a kind of BGA packaging intelligent tray arrangement equipment, comprising: rack, the rack is equipped with feeding station, feeding station, loading station, turnover station, stacking station and discharge station;Feeding frame is arranged in feeding station, and feeding drive mechanism is arranged on the feeding frame;Stacking box is arranged in discharge station, and discharge drive mechanism is arranged on the rack;Clamping transfer mechanism is used to clamp and transfer loading template from stacking box to the loading station, or clamp and transfer packaging finished product from the loading station to the stacking box for stacking treatment, and the turnover station is located on the transfer path of clamping transfer mechanism;Loading mechanism is arranged in loading station;And turnover mechanism is arranged in the turnover station, and turnover space is formed between the turnover mechanism and the clamping transfer mechanism, and jacking drive mechanism is arranged on the rack.The application realizes automatic tray arrangement and turnover operation, and effectively improves production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of semiconductor packaging equipment, and particularly relates to a BGA packaging intelligent tray placing device. BACKGROUND

[0002] Ball grid array packaging (BGA) is a kind of integrated circuit surface mounting technology, which replaces the traditional pin through the bottom tin ball array and is applied to the permanent fixation of microprocessors, communication chips and consumer electronic products. The packaging is composed of a chip, a packaging substrate and a solder ball array, and the connection mode includes wire bonding and flip-chip soldering. Compared with dual in-line packaging, BGA can accommodate more pins, shorten the wire length to improve high-speed performance, and has the advantages of low inductance and high thermal conductivity.

[0003] At present, when the ball grid array packaging is carried out on the semiconductor packaging production line, only one side of the packaging operation can be carried out, and if the packaging operation of the other side is to be realized, manual turning operation is needed, and the packaging operation is carried out on another packaging production line, so that the overall packaging efficiency is low. SUMMARY

[0004] In order to overcome the defects of the prior art, the purpose of the present application is to provide a BGA packaging intelligent tray placing device, which has the advantages of automatic tray placing and turning over, and improving production efficiency.

[0005] The purpose of the present application is achieved by adopting the following technical solutions:

[0006] According to the embodiment of the present application, a BGA packaging intelligent tray placing device is provided, which comprises:

[0007] A rack is provided, and the rack is provided with a feeding station, a feeding station, a loading station, a turnover station, a stacking station and a discharging station;

[0008] A feeding frame for containing the to-be-packaged substrate is arranged at the feeding station, and the feeding frame is provided with a feeding driving mechanism for driving the to-be-packaged substrate to be sequentially transferred from the feeding station to the feeding station;

[0009] A stacking box for containing the loading template or the packaging finished product is arranged at the discharging station, and the rack is provided with a discharging driving mechanism for driving the stacking box to reciprocate between the discharging station and the stacking station;

[0010] A clamping and transferring mechanism is arranged for clamping and transferring the loading template from the stacking box to the loading station, or clamping and transferring the packaging finished product from the loading station to the stacking box for stacking treatment, and the turnover station is located on the transferring path of the clamping and transferring mechanism;

[0011] A loading mechanism arranged at the loading station is configured to pick up the to-be-packaged substrates from the feeding rack and load the to-be-packaged substrates into the loading template; and

[0012] A turnover mechanism arranged at the turnover station, wherein a turnover space is formed between the turnover mechanism and the clamping and transferring mechanism, and a jacking driving mechanism is arranged on the rack to drive the loading template to move up and down between the clamping and transferring mechanism and the turnover mechanism.

[0013] The above technical solution is implemented. When BGA packaging is performed, the to-be-packaged substrates are neatly stacked on the feeding rack, and the loading template is sequentially loaded into the stacking box. The stacking box is transferred from the discharging station to the stacking station by the discharging driving mechanism. Then, the clamping and transferring mechanism sequentially clamps and takes a loading template from the stacking box and transfers it to a predetermined position of the loading station. At the same time, a group of to-be-packaged substrates are transferred from the feeding station to the feeding station by the feeding driving mechanism. Then, the clamping and transferring mechanism picks up the to-be-packaged substrates from the feeding station and places them in the loading template for pre-fixing. Then, the first side of the to-be-packaged substrates at the bottom is packaged, and the packaging intermediate is formed after the one-side packaging process is completed. The clamping and transferring mechanism transfers the packaging intermediate from the loading station to the turnover station. After the jacking driving mechanism lifts the packaging intermediate to a predetermined height, the turnover mechanism clamps and positions the packaging intermediate. After the jacking driving mechanism is reset, the turnover mechanism turns the packaging intermediate by 180°. The jacking driving mechanism receives the turned packaging intermediate and places it in the clamping and transferring mechanism. The clamping and transferring mechanism transfers the turned packaging intermediate to the loading station for packaging processing of the other side to obtain a packaging product. Then, the clamping and transferring mechanism transfers the packaging product to the stacking station and inserts it into the empty position in the stacking box. The above steps are repeated until all the loading templates in the stacking box are loaded with to-be-packaged substrates and the packaging processing is completed to form packaging products. The stacking box is transferred to the discharging station by the discharging driving mechanism. The next feeding and placing operation is performed. Thus, the automatic placing and turnover operation is realized, and the production efficiency is effectively improved.

[0014] In some exemplary embodiments, the feeding rack comprises:

[0015] A loading guide frame for loading the to-be-packaged substrates, wherein the loading guide frame extends to the feeding station.

[0016] A limiting corner column for positioning the corners of the to-be-packaged substrates, wherein the bottom of the limiting corner column is provided with a discharging opening for the to-be-packaged substrates at the bottom to be transferred out.

[0017] In some exemplary embodiments, the feeding driving mechanism comprises a belt assembly arranged on both sides of the carrier guide frame, the two side edges of the lowest one of the substrates to be packaged are overlapped on the belt assembly, and the end of the carrier guide frame is provided with a limiting baffle for limiting the moving position of the substrate to be packaged.

[0018] The above technical solution is realized by forming a limiting placement space for the substrate to be packaged by the limiting corner column, placing the substrate to be packaged on the belt assembly, moving the lowest one of the substrates to be packaged out of the discharge opening when the belt assembly is in action, and moving the substrate to be packaged to the feeding station until it is blocked by the limiting baffle.

[0019] In some exemplary embodiments, the carrier guide frame is further provided with a sub-carrier mechanism for supporting the substrate to be packaged to load only the lowest one of the substrates to be packaged on the feeding driving mechanism, and the sub-carrier mechanism comprises:

[0020] a top-holding cylinder fixed to the bottom of the carrier guide frame for pushing the substrate to be packaged upward; and

[0021] a supporting cylinder fixed to both sides of the carrier guide frame and located between adjacent limiting corner columns for being inserted into the lower part of the substrate to be packaged to support the substrate to be packaged.

[0022] The above technical solution is realized by lifting the stacked substrate to be packaged to the bottom of the second-to-last substrate to be packaged by the top-holding cylinder, supporting the substrate to be packaged except the lowest one of the substrates to be packaged by the supporting cylinder at this time, resetting the top-holding cylinder to place the lowest one of the substrates to be packaged on the belt assembly again, and moving the lowest one of the substrates to be packaged to the feeding station by the belt assembly.

[0023] In some exemplary embodiments, the stacking box is provided with a plurality of stacking slots for inserting and loading the template, and the discharge station is provided with a moving roller set for rolling and sliding the stacking box;

[0024] The discharge driving mechanism comprises:

[0025] a stacking support frame slidingly assembled on the rack, and the rack is provided with a discharge driving member for driving the stacking support frame to move back and forth;

[0026] a stacking bracket slidingly assembled on the stacking support frame in the vertical direction for supporting the stacking box, and the stacking support frame is provided with a stacking driving member for driving the stacking bracket to move up and down; and

[0027] a rotary clamping cylinder arranged at the front end of the stacking bracket for clamping or releasing the stacking box.

[0028] The technical scheme is implemented as follows: in the loading process of the loading template, the height of the stacking bracket is driven by the stacking driving member to be flush with the discharging station, at this time, the stacking box loaded with the loading template can be moved to the stacking bracket, the stacking box is clamped and fixed by the rotating clamping cylinder, and then the stacking box is moved to the stacking station by the discharging driving member; in the packaging process, the loading templates are lifted to the height corresponding to the clamping and moving mechanism by the stacking driving member, so that the clamping and moving of the to-be-packaged substrate and the packaged product can be realized.

[0029] In some exemplary embodiments, the stacking bracket is further provided with a push cylinder for pushing the stacking box to the discharging station.

[0030] The technical scheme is implemented as follows: the push cylinder is used to push the stacking box out after the packaging process is completed, so that the discharging process is completed.

[0031] In some exemplary embodiments, the clamping and moving mechanism comprises:

[0032] A clamping and moving seat slidably assembled on the rack, the rack being provided with a clamping and moving member for driving the clamping and moving seat to move back and forth;

[0033] A lifting platform slidably assembled on the clamping and moving seat in the vertical direction, the clamping and moving seat being provided with a clamping and lifting cylinder for driving the lifting platform to move up and down;

[0034] A plurality of clamping cylinders provided on the lifting platform for clamping the loading template; and

[0035] A moving belt crossing the overturning station and the loading station;

[0036] The clamping and moving member drives the clamping and moving seat to move back and forth so that the clamping cylinders clamp the loading template from the stacking box or clamp and move the packaged product to be inserted into the stacking box, and the moving belt is used to move the loading template from the overturning station to the loading station or move the packaged product from the loading station to the overturning station.

[0037] In the above technical solution, in the loading template feeding process, the clamping and moving carrier is first driven to move the clamping and moving seat to correspond to the clamping cylinder and the loading template, at this time, the lifting support is lifted to a high position by the clamping lifting cylinder, the loading template is clamped by the clamping cylinder, and then the loading template is clamped and sent to the turnover station by the clamping and moving carrier, so that the loading template is placed on the moving and sending belt, then the clamping cylinder releases the loading template, the lifting support is lowered below the loading template by the clamping lifting cylinder, and the loading template can be moved to the loading station by the moving and sending belt; in the turnover process, the packaging intermediate body can be moved from the loading station to the turnover station by the moving and sending belt; in the discharging process, after the packaging product is moved from the loading station to the turnover station by the moving and sending belt, the lifting support is lifted to a high position by the clamping lifting cylinder, the packaging product is clamped by the clamping cylinder, and then the packaging product is moved and inserted into the corresponding empty position in the stacking box by the clamping and moving carrier, so that the clamping and moving of the loading template, the packaging intermediate body and the packaging product are realized.

[0038] In some exemplary embodiments, the loading mechanism comprises:

[0039] A loading moving seat slidably assembled on the rack, wherein the rack is provided with a loading driving member for driving the loading moving seat to reciprocally move;

[0040] A plurality of material taking suction cups supported on the loading moving seat and corresponding to the feeding rack, wherein the material taking suction cups are slidably assembled on the loading moving seat in the vertical direction, and the loading moving seat is provided with a suction driving member for driving the material taking suction cups to move up and down to adsorb the packaging substrate;

[0041] The loading driving member drives the loading moving seat to reciprocally move between the feeding station and the loading station to move the packaging substrate adsorbed from the feeding station to the loading station.

[0042] In the above technical solution, in the feeding stage, when the loading template is moved to the feeding station, the loading moving seat is moved to correspond to the material taking suction cups and the loading template by the loading driving member, the material taking suction cups are lowered by the suction driving member to adsorb and fix the packaging substrate, and then the loading moving seat is reset by the loading driving member to load the adsorbed packaging substrate on the loading template.

[0043] In some exemplary embodiments, the loading moving seat is slidably assembled with a loading adjusting seat, the material taking suction cups are fixed to the loading adjusting seat, and the loading moving seat is provided with an adjusting driving member for driving the loading adjusting seat to move to adjust the adsorption position.

[0044] According to the technical scheme, the driving member is adjusted to drive the loading adjusting seat to move to a suitable position according to loading requirements, and then the material taking suction disc group is adjusted to a suitable suction position.

[0045] In some exemplary embodiments, the turnover mechanism comprises:

[0046] A turnover supporting frame symmetrically arranged at the turnover station;

[0047] A turnover clamping frame rotatably arranged at the turnover supporting frame, wherein the turnover supporting frame is provided with a turnover driving mechanism for driving the turnover clamping frame to rotate; and

[0048] A turnover clamping cylinder fixed to the turnover clamping frame and used for clamping or releasing the loading template.

[0049] According to the technical scheme, in the turnover stage, after the packaging intermediate is jacked to a predetermined height by the jacking driving mechanism, the edge portion of the loading template in the packaging intermediate is clamped by the turnover clamping cylinder, the jacking driving mechanism is reset, the turnover clamping frame is driven to rotate 180° by the turnover driving mechanism, then the jacking driving mechanism is raised again to support the packaging intermediate, the turnover clamping cylinder is released, the jacking driving mechanism is lowered again to reset, and the packaging intermediate is located on the transfer tape again, so that the turnover action is completed.

[0050] In summary, compared with the prior art, the present application has the following beneficial effects:

[0051] This invention provides an intelligent tray-stacking device for BGA packaging. During BGA packaging, substrates to be packaged are neatly stacked on a feeding rack, while loading templates are sequentially loaded into a palletizing box. The palletizing box is moved from the feeding station to the palletizing station by a feeding drive mechanism. Subsequently, a clamping and transferring mechanism sequentially clamps a loading template from the palletizing box and moves it to a predetermined position at the loading station. Simultaneously, a group of substrates to be packaged is moved from the feeding station to the feeding station by a feeding drive mechanism. Then, the loading mechanism picks up the group of substrates to be packaged from the feeding station and moves it to the loading station, where it is pre-fixed in the loading template. Subsequently, the first side of the substrates to be packaged, located at the bottom, is packaged. After completing the packaging process on one side to form a packaged intermediate, the clamping and transferring mechanism moves the packaged intermediate from the loading station to the flipping station. The lifting drive mechanism lifts the encapsulation intermediate to a predetermined height, and the flipping mechanism clamps and positions the encapsulation intermediate. After the lifting drive mechanism resets, the flipping mechanism flips the encapsulation intermediate 180°. The lifting drive mechanism then receives the flipped encapsulation intermediate and places it back onto the clamping and transfer mechanism. The clamping and transfer mechanism then transfers the flipped encapsulation intermediate back to the loading station for encapsulation processing on the other side to obtain the encapsulated finished product. Subsequently, the clamping and transfer mechanism transfers the encapsulated finished product to the palletizing station and re-inserts it into the empty space in the palletizing box. The above steps are repeated until all loading templates in the palletizing box are loaded with the substrate to be encapsulated and the encapsulation process is completed to form the encapsulated finished product. Then, the unloading drive mechanism transfers the palletizing box back to the unloading station for the next loading and traying operation. This achieves automated traying and flipping operations, effectively improving production efficiency. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the structure of the BGA-packaged intelligent tray-stacking device in an embodiment of the present invention.

[0053] Figure 2 This is a schematic diagram of the BGA-packaged intelligent tray-stacking device with part of the rack removed, as described in an embodiment of the present invention.

[0054] Figure 3 This is a schematic diagram of the feeding rack and feeding drive mechanism in an embodiment of the present invention.

[0055] Figure 4 for Figure 3 Enlarged view of part A.

[0056] Figure 5 This is a schematic diagram of the structure of the palletizing box and the material discharge drive mechanism in an embodiment of the present invention.

[0057] Figure 6 This is a schematic diagram of the clamping and transferring mechanism in an embodiment of the present invention.

[0058] Figure 7 Structure diagram of loading mechanism in the embodiment of the present application.

[0059] Figure 8 Structure diagram of loading mechanism in the embodiment of the present application. Figure 7 Enlarged view of B part of

[0060] Figure 9 Structure diagram of turnover mechanism and jacking driving mechanism in the embodiment of the present application.

[0061] Corresponding component names represented by numbers and letters in the figure:

[0062] 10, rack; 11, feeding station; 12, feeding station; 13, loading station; 14, turnover station; 15, stacking station; 16, discharging station; 20, feeding rack; 21, feeding driving mechanism; 211, belt assembly; 22, substrate to be packaged; 23, material carrying guide frame; 24, limiting angle column; 25, discharging opening; 26, limiting baffle; 27, material separating mechanism; 271, top-holding cylinder; 272, material supporting cylinder; 30, stacking box; 31, discharging driving mechanism; 311, stacking support frame; 312, discharging driving member; 313, stacking bracket; 314, stacking driving member; 315, rotating clamping cylinder; 316, pushing cylinder; 32, stacking slot; 33, moving roller set; 40, clamping and moving mechanism; 41, clamping and moving seat; 42, clamping and moving member; 43, lifting support platform; 44, clamping and lifting cylinder; 45, clamping cylinder; 46, moving belt; 50, loading mechanism; 51, loading template; 52, loading moving seat; 53, loading driving member; 54, material taking suction cup set; 55, suction driving member; 56, loading adjusting seat; 57, adjusting driving member; 60, turnover mechanism; 61, turnover support frame; 62, turnover clamping frame; 63, turnover driving mechanism; 64, turnover clamping cylinder; 70, jacking driving mechanism. DETAILED DESCRIPTION

[0063] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0064] As Figures 1 to 9As shown, the application provides a BGA packaging intelligent tray arrangement device, which comprises a rack 10, wherein the rack 10 is provided with a feeding station 11, a feeding station 12, a loading station 13, a turnover station 14, a stacking station 15 and a discharging station 16; a feeding rack 20 is arranged at the feeding station 11 and used for containing a to-be-packaged substrate 22, wherein the feeding rack 20 is provided with a feeding driving mechanism 21 used for driving the to-be-packaged substrate 22 to be sequentially moved from the feeding station 11 to the feeding station 12 in sequence; a stacking box 30 is arranged at the discharging station 16 and used for containing a loading template 51 or a packaging finished product, wherein the rack 10 is provided with a discharging driving mechanism 31 used for driving the stacking box 30 to reciprocally move between the discharging station 16 and the stacking station 15; a clamping and transferring mechanism 40 is used for clamping and transferring the loading template 51 from the stacking box 30 to the loading station 13 or clamping and transferring the packaging finished product from the loading station 13 to the stacking box 30 for stacking treatment, and the turnover station 14 is located on the transfer path of the clamping and transferring mechanism 40; a loading mechanism 50 is arranged at the loading station 13 and used for grabbing the to-be-packaged substrate 22 from the feeding rack 20 to load the to-be-packaged substrate 22 on the loading template 51; and a turnover mechanism 60 is arranged at the turnover station 14, wherein a turnover space is formed between the clamping and transferring mechanism 40 and the turnover mechanism 60, and the rack 10 is provided with a jacking driving mechanism 70 used for driving the loading template 51 to move up and down between the clamping and transferring mechanism 40 and the turnover mechanism 60.

[0065] Specifically, the feeding rack 20 comprises a material carrying guide frame 23 used for carrying the to-be-packaged substrate 22, wherein the material carrying guide frame 23 extends to the feeding station 12; a limiting corner column 24 used for positioning the corners of the to-be-packaged substrate 22, wherein the bottom of the limiting corner column 24 is provided with a discharging opening 25 for moving out the to-be-packaged substrate 22 located at the lowermost position. It can be understood that each group of the material carrying guide frame 23 comprises two groups of sub-carriers arranged oppositely, the two sides of the to-be-packaged substrate 22 are respectively overlapped on the two sub-carriers, the limiting corner column 24 is fixed on the material carrying guide frame 23, and four limiting corner columns 24 are arranged correspondingly for each stack of to-be-packaged substrates 22, wherein the four limiting corner columns 24 form a group, which defines a space for loading the to-be-packaged substrate 22, and the limiting corner column 24 is in the shape of an angle steel, so as to limit the four corners of the to-be-packaged substrate 22; in the embodiment, two groups of the material carrying guide frame 23 can be arranged, and two groups of the limiting corner columns 24 are arranged on each group of the material carrying guide frame 23, so as to form four groups of loading spaces arranged in a rectangular array, and the discharging opening 25 is located on one side of the limiting corner column 24 close to the feeding station 12.

[0066] The feeding driving mechanism 21 comprises a belt assembly 211 arranged on both sides of the carrier guide frame 23, and the two side edges of the lowest to-be-packaged substrate 22 are overlapped on the belt assembly 211, and the end of the carrier guide frame 23 is provided with a limiting baffle 26 for limiting the moving position of the to-be-packaged substrate 22; wherein the belt assembly 211 is sleeved on the carrier guide frame 23 and is driven by a servo motor, and a support step for supporting the belt assembly 211 is usually arranged on the carrier guide frame 23, which can also be used to prevent the to-be-packaged substrate 22 from deviating during the conveying process.

[0067] In the embodiment, the limiting angle column 24 forms a placing space for limiting the to-be-packaged substrate 22, and the to-be-packaged substrate 22 is placed on the belt assembly 211, and when the belt assembly 211 moves, the lowest to-be-packaged substrate 22 is conveyed out of the discharge opening 25, and is conveyed to the feeding station 12 when being blocked by the limiting baffle 26.

[0068] The carrier guide frame 23 is also provided with a carrier separation mechanism 27 for supporting the to-be-packaged substrate 22 to load only the lowest to-be-packaged substrate 22 on the feeding driving mechanism 21, and the carrier separation mechanism 27 comprises a top-holding cylinder 271 fixed to the bottom of the carrier guide frame 23 for pushing the to-be-packaged substrate 22 upward, and a supporting cylinder 272 fixed to both sides of the carrier guide frame 23 and located between adjacent limiting angle columns 24 for being inserted into the lower part of the to-be-packaged substrate 22 to support the to-be-packaged substrate 22.

[0069] It can be understood that the top-holding cylinder 271 only needs to be able to lift the bottom of the second-to-last to-be-packaged substrate 22 upward above the supporting cylinder 272, in order to improve the stability of lifting and reduce damage to the to-be-packaged substrate 22, a top block or a top plate can usually be arranged on the power output shaft of the top-holding cylinder 271 to increase the contact surface with the to-be-packaged substrate 22, and a plug can be arranged on the power output shaft of the supporting cylinder 272 to support the lower part of the to-be-packaged substrate 22.

[0070] The to-be-packaged substrate 22 is lifted to the bottom of the second-to-last to-be-packaged substrate 22 by the top-holding cylinder 271, and the to-be-packaged substrate 22 except the lowest to-be-packaged substrate 22 is supported by the supporting cylinder 272, and then the top-holding cylinder 271 is reset to place the lowest to-be-packaged substrate 22 on the belt assembly 211, and the lowest to-be-packaged substrate 22 is conveyed to the feeding station 12 by the belt assembly 211.

[0071] The stacking box 30 is provided with a plurality of stacking slots 32 for inserting the loading template 51, and each stacking slot 32 should be spaced at a certain interval so that the loading template 51 or the packaged product inserted in the stacking slot 32 will not contact each other. The moving roller set 33 is arranged at the discharging station 16 for the stacking box 30 to slide and move, facilitating the movement of the stacking box 30 for loading and unloading.

[0072] The discharging driving mechanism 31 comprises a stacking support frame 311 slidingly assembled on the rack 10, a discharging driving member 312 arranged on the rack 10 for driving the stacking support frame 311 to move back and forth, a stacking bracket 313 slidingly assembled on the stacking support frame 311 in the vertical direction for supporting the stacking box 30, a stacking driving member 314 arranged on the stacking support frame 311 for driving the stacking bracket 313 to move up and down, and a rotary clamping cylinder 315 arranged at the front end of the stacking bracket 313 for clamping or releasing the stacking box 30.

[0073] The discharging driving member 312 and the stacking driving member 314 are preferably screw driving mechanisms, which can accurately control the moving distance. The discharging driving member 312 is used to drive the stacking support frame 311 to move back and forth between the discharging station 16 and the stacking station 15. The stacking bracket 313 is L-shaped, and the vertical part is used for driving connection with the stacking driving member 314, and the horizontal part is used for supporting the stacking frame, and a roller set can also be arranged on the horizontal part for the movement of the stacking box 30. In addition, the pushing cylinder 316 is arranged on the stacking bracket 313 for pushing the stacking box 30 to the discharging station 16. Preferably, the pushing cylinder 316 is located close to the bottom of the stacking bracket 313 to push the stacking box 30. Through the pushing cylinder 316, the stacking box 30 can be pushed out after the packaging process is completed, and the discharging process is completed.

[0074] During the loading process of the loading template 51, the height of the stacking bracket 313 driven by the stacking driving member 314 is leveled with the discharging station 16. At this time, the stacking box 30 loaded with the loading template 51 can be moved to the stacking bracket 313. The stacking box 30 is clamped and fixed by the rotary clamping cylinder 315, and then moved to the stacking station 15 by the discharging driving member 312. During the packaging process, each loading template 51 is lifted to the height corresponding to the clamping and transferring mechanism 40 by the stacking driving member 314, so that the clamping and transferring of each substrate 22 to be packaged and the packaged product can be realized.

[0075] The clamping and transferring mechanism 40 comprises a clamping and transferring seat 41 slidably assembled on the frame 10, the frame 10 being provided with a clamping and transferring device 42 for driving the clamping and transferring seat 41 to move back and forth; a lifting platform 43 slidably assembled on the clamping and transferring seat 41 in the vertical direction, the clamping and transferring seat 41 being provided with a clamping and lifting cylinder 44 for driving the lifting platform 43 to move up and down; a plurality of clamping cylinders 45 provided on the lifting platform 43 for clamping the loading template 51; and a transferring belt 46 crossing the overturning station 14 and the loading station 13; the clamping and transferring device 42 drives the clamping and transferring seat 41 to move back and forth so that the clamping cylinders 45 clamp and take the loading template 51 from the stacking box 30 or clamp and transfer the packaged product to be inserted into the stacking box 30, and the transferring belt 46 is used for transferring the loading template 51 from the overturning station 14 to the loading station 13 or transferring the packaged product from the loading station 13 to the overturning station 14.

[0076] The clamping and transferring device 42 can be a belt mechanism or a servo lead screw mechanism, the frame 10 is provided with a slide rail assembly to realize the sliding connection of the clamping and transferring seat 41, the lifting platform is connected in the vertical direction through the matched guide sleeve and guide column, the clamping cylinders 45 can be preferably provided with 2-4 groups to ensure that the clamping force is uniform and stable, and the transferring belt 46 preferably adopts a belt mechanism, so that long-distance transfer can be realized, and the transferring belt 46 extends to the loading station 13, so that the loading template 51 can be directly placed on the transferring belt 46 and transferred to the loading station 13.

[0077] In the loading template 51 feeding process, the clamping and transferring seat 41 is first moved to the position corresponding to the clamping cylinders 45 and the loading template 51 through the clamping and transferring device 42, at this time the lifting platform 43 is lifted to the high position by the clamping and lifting cylinder 44, the loading template 51 is clamped by the clamping cylinders 45, then the loading template 51 is clamped and transferred to the overturning station 14 by the clamping and transferring device 42, so that the loading template 51 is placed on the transferring belt 46, then the clamping cylinders 45 are loosened, the clamping and lifting cylinder 44 drives the lifting platform 43 to descend to the position below the loading template 51, and the loading template 51 can be transferred to the loading station 13 by the transferring belt 46; in the overturning process, the packaged intermediate product can be transferred from the loading station 13 to the overturning station 14 by the transferring belt 46; and in the discharging process, after the packaged product is transferred from the loading station 13 to the overturning station 14 by the transferring belt 46, the lifting platform 43 is lifted to the high position by the clamping and lifting cylinder 44, then the packaged product is clamped by the clamping cylinders 45, and the packaged product is transferred and inserted into the corresponding position in the stacking box 30 by the clamping and transferring device 42, so as to realize the clamping and transferring of the loading template 51, the packaged intermediate product and the packaged product.

[0078] The loading mechanism 50 comprises a loading moving base 52 slidingly assembled on the frame 10, the frame 10 is provided with a loading driving member 53 for driving the loading moving base 52 to reciprocate, a plurality of material taking suction cup groups 54 supported on the loading moving base 52 and corresponding to the feeding rack 20, the material taking suction cup groups 54 are slidingly assembled on the loading moving base 52 in the vertical direction, and the loading moving base 52 is provided with a suction driving member 55 for driving the material taking suction cup groups 54 to move up and down to adsorb the to-be-encapsulated substrates 22, and the loading driving member 53 drives the loading moving base 52 to reciprocate between the feeding station 12 and the loading station 13 to move the to-be-encapsulated substrates 22 adsorbed from the feeding station 12 to the loading station 13.

[0079] Corresponding to the feeding rack 20, when the loading space is provided with four groups, the material taking suction cup groups 54 are also provided with four groups correspondingly, so that four groups of to-be-encapsulated substrates 22 can be adsorbed at one time, the loading driving member 53 preferably adopts a servo lead screw mechanism, and the suction driving member 55 preferably adopts a pneumatic cylinder, so that the material taking suction cup groups 54 can be driven to quickly act to adsorb or release the to-be-encapsulated substrates 22.

[0080] In the feeding stage, when the loading template 51 is moved to the feeding station 12, the loading moving base 52 is driven by the loading driving member 53 to move to the material taking suction cup groups 54 corresponding to the loading template 51, the material taking suction cup groups 54 are driven by the suction driving member 55 to move down to adsorb and fix the to-be-encapsulated substrates 22, and then the loading moving base 52 is driven by the loading driving member 53 to reset, so that the adsorbed to-be-encapsulated substrates 22 are loaded on the loading template 51.

[0081] Further, the loading moving base 52 is slidingly assembled with a loading adjusting base 56, the material taking suction cup groups 54 are fixed to the loading adjusting base 56, and the loading moving base 52 is provided with an adjusting driving member 57 for driving the loading adjusting base 56 to move to adjust the adsorption position, and the adjusting driving member 57 also can adopt a servo lead screw mechanism, in a specific example, the loading moving base 52 is provided with two groups of loading adjusting bases 56, each of the loading adjusting bases 56 is provided with two groups of material taking suction cup groups 54, and the adjusting driving member 57 adopts a double-screw lead screw to drive the two groups of loading adjusting bases 56 to be close to or away from each other; the adjusting driving member 57 can drive the loading adjusting base 56 to move to a suitable position according to the loading demand, and then the material taking suction cup groups 54 are adjusted to a suitable adsorption position.

[0082] The turnover mechanism 60 comprises: turnover support frames 61 symmetrically arranged at the turnover stations 14; turnover clamping frames 62 rotatably assembled on the turnover support frames 61, the turnover support frames 61 being provided with turnover driving mechanisms 63 for driving the turnover clamping frames 62 to rotate; and turnover clamping cylinders 64 fixed on the turnover clamping frames 62 for clamping or releasing the loading templates 51; each set of turnover clamping frames 62 is provided with a set of turnover clamping cylinders 64 at both ends, and the turnover driving mechanisms 63 can be selected from one or more of a rotary cylinder, a servo motor, a belt transmission mechanism or a gear transmission mechanism.

[0083] The jacking driving mechanism 70 preferably adopts a lead screw mechanism, and in a specific example, the jacking driving mechanism 70 can comprise a support plate provided with support rods for supporting the bottom of the substrate to be packaged 22 at four corners of the support plate, the support rods being slidably assembled on the rack 10 through guide sleeves, the support plate being driven to move up and down by the lead screw mechanism, for example, a lead screw nut is arranged at the middle of the support plate, a driving lead screw of the lead screw mechanism is threadedly connected with the lead screw nut, and the driving lead screw is driven to rotate by a servo motor to accurately control the rising height of the support rods, four points of the substrate to be packaged 22 are supported by the support rods, and stable jacking of the substrate to be packaged 22 is realized.

[0084] In the turnover phase, after the packaging intermediate is jacked to a predetermined height by the jacking driving mechanism 70, the edge part of the loading template 51 in the packaging intermediate is clamped by the turnover clamping cylinders 64, the jacking driving mechanism 70 is reset, the turnover clamping frames 62 are driven to rotate 180° by the turnover driving mechanisms 63, then the jacking driving mechanism 70 is raised again to receive the packaging intermediate, the turnover clamping cylinders 64 are released, the jacking driving mechanism 70 is lowered again to reset, and the packaging intermediate is located on the transfer tape 46 again, so that the turnover action is completed.

[0085] In the embodiment of the present application, when the BGA packaging is performed, the to-be-packaged substrates 22 are neatly stacked on the feeding frame 20, and the loading templates 51 are sequentially loaded in the stacking box 30. The stacking box 30 is moved from the discharging station 16 to the stacking station 15 by the discharging driving mechanism 31, and then a loading template 51 is sequentially clamped from the stacking box 30 by the clamping and moving mechanism 40 and moved to the predetermined position of the loading station 13. At the same time, a group of to-be-packaged substrates 22 are moved from the feeding station 11 to the feeding station 12 by the feeding driving mechanism 21, and then the to-be-packaged substrates 22 moved to the feeding station 12 are clamped and moved from the feeding station 12 to the loading station 13 by the loading mechanism 50 and placed in the loading template 51 for pre-fixing. Then, the first side of the to-be-packaged substrates 22 at the bottom is packaged, and after the packaging process is completed, the packaging intermediate is moved from the loading station 13 to the turnover station 14 by the clamping and moving mechanism 40. After being positioned by the turnover mechanism 60, the packaging intermediate is turned over by 180° by the turnover mechanism 60 after the lifting driving mechanism 70 is reset. The packaging intermediate is received by the lifting driving mechanism 70, placed in the clamping and moving mechanism 40 again, and then moved to the loading station 13 by the clamping and moving mechanism 40 for packaging of the other side to obtain the packaging product. Then, the packaging product is moved to the stacking station 15 by the clamping and moving mechanism 40 and inserted into the empty position in the stacking box 30. The above steps are repeated until all the loading templates 51 in the stacking box 30 are loaded with the to-be-packaged substrates 22 and the packaging process is completed to form the packaging product. Then, the stacking box 30 is moved to the discharging station 16 by the discharging driving mechanism 31, and the next feeding and placing operation is performed, so that the automatic placing and turnover operation is realized and the production efficiency is effectively improved.

[0086] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are equivalent modifications and improvements of the above embodiments according to the essential technology of the present application, and these are within the protection scope of the present application.

Claims

1. A BGA packaged intelligent tray-stacking device, characterized in that, include: The frame is equipped with a loading station, a feeding station, a loading station, a flipping station, a stacking station and a discharging station; A feeding rack is provided at the loading station for holding substrates to be packaged. The feeding rack is provided with a feeding drive mechanism for driving the substrates to be packaged to be sequentially moved from the loading station to the feeding station. The palletizing box, which is set at the discharge station and is used to hold loading templates or packaged finished products, is provided on the frame with a discharge drive mechanism for driving the palletizing box to reciprocate between the discharge station and the palletizing station. A clamping and transferring mechanism is used to clamp and transfer loading templates from the palletizing box to the loading station, or to clamp and transfer packaged finished products from the loading station to the palletizing box for palletizing processing. The flipping station is located on the transfer path of the clamping and transferring mechanism. The loading mechanism, located at the loading station, is used to grab the substrate to be packaged from the feeding rack and load it onto the loading template. as well as, The flipping mechanism is set at the flipping station, and a flipping space is formed between the flipping mechanism and the clamping and transferring mechanism. The frame is provided with a lifting drive mechanism for driving the loading template to move up and down between the clamping and transferring mechanism and the flipping mechanism.

2. The intelligent tray-stacking device for BGA packaging according to claim 1, characterized in that, The feeding rack includes: A material carrier guide is used to carry the substrate to be packaged, and the material carrier guide extends to the feeding station; The limiting corner post is used to position the corner of the substrate to be packaged. The bottom of the limiting corner post is provided with a discharge opening to allow the substrate to be packaged at the bottom to be moved out.

3. The intelligent tray-stacking device for BGA packaging according to claim 2, characterized in that, The feeding drive mechanism includes belt assemblies disposed on both sides of the material carrier guide, with the two sides of the substrate to be packaged located at the bottom overlapping the belt assemblies, and the end of the material carrier guide is provided with a limiting baffle for restricting the movement position of the substrate to be packaged.

4. The intelligent tray-stacking device for BGA packaging according to claim 2 or 3, characterized in that, The material carrier guide is further provided with a loading mechanism for supporting the substrate to be packaged so that only the substrate located at the bottom can be mounted on the feeding drive mechanism. The loading mechanism includes: A top-holding cylinder fixed to the bottom of the material carrier for pushing the substrate to be packaged upward; and, A material-supporting cylinder is fixed on both sides of the material-carrying guide and located between adjacent limiting corner posts, and is used to insert into the bottom of the substrate to be packaged to support the substrate.

5. The intelligent tray-stacking device for BGA packaging according to claim 1, characterized in that, The palletizing box is provided with several palletizing slots for inserting loading templates, and the discharge station is provided with a set of movable rollers for the palletizing box to roll and slide. The discharge drive mechanism includes: A palletizing support frame is slidably mounted on the frame, and the frame is provided with a discharge drive component for driving the palletizing support frame to reciprocate. A palletizing bracket, vertically slidably mounted on a palletizing support frame for supporting palletized boxes, wherein the palletizing support frame is provided with a palletizing drive component for driving the palletizing bracket to move up and down; and, A rotary clamping cylinder is located at the front end of the palletizing bracket to clamp or release the palletizing box.

6. The intelligent tray-stacking device for BGA packaging according to claim 5, characterized in that, The palletizing bracket is also equipped with a pusher cylinder for pushing the palletized box to the discharge station.

7. The intelligent tray-stacking device for BGA packaging according to claim 5, characterized in that, The clamping and transferring mechanism includes: A clamping and transfer seat is slidably mounted on the frame, and the frame is provided with clamping and transfer components for driving the clamping and transfer seat to reciprocate. A lifting platform is slidably mounted on the clamping and transfer seat in the vertical direction. The clamping and transfer seat is equipped with a clamping and lifting cylinder for driving the lifting platform to move up and down. Several clamping cylinders disposed on the lifting platform for clamping the loading template; and, A transfer conveyor belt spanning the flipping station and the loading station; The clamping and transfer component drives the clamping and transfer seat to reciprocate so that the clamping cylinder can clamp the loading template from the palletizing box or clamp and insert the packaged product into the palletizing box. The transfer carrier is used to transfer the loading template from the flipping station to the loading station, or to transfer the packaged product from the loading station to the flipping station.

8. The intelligent tray-stacking device for BGA packaging according to claim 1, characterized in that, The loading mechanism includes: A loading movable seat is slidably mounted on the frame, and the frame is provided with a loading drive component for driving the loading movable seat to reciprocate; A plurality of material-grabbing suction cup groups are supported on the loading movable seat and corresponding to the feeding rack. The material-grabbing suction cup groups are slidably assembled on the loading movable seat in the vertical direction, and the loading movable seat carries an adsorption drive unit for driving the material-grabbing suction cup groups to move up and down to adsorb the substrate to be packaged. The loading drive unit drives the loading moving seat to reciprocate between the feeding station and the loading station to pick up the substrate to be packaged from the feeding station and transfer it to the loading station.

9. The intelligent tray-stacking device for BGA packaging according to claim 8, characterized in that, The loading moving seat is slidably equipped with a loading adjustment seat, the material suction cup assembly is fixed to the loading adjustment seat, and the loading moving seat is provided with an adjustment drive component for driving the loading adjustment seat to move to adjust the suction position.

10. The intelligent tray-stacking device for BGA packaging according to claim 1, characterized in that, The flipping mechanism includes: A flipping support frame symmetrically arranged at the flipping station; A rotatable clamping frame is mounted on the flipping support frame, the flipping support frame being provided with a flipping drive mechanism for driving the flipping clamping frame to rotate; and, A flip-gripping cylinder fixed to the flip-gripping frame is used to clamp or release the loading template.

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