Shifting, transferring and receiving process of bipolar plate

Abstract

The invention relates to a shifting, transferring and receiving process of a polar plate. The process comprises the following steps: S1, taking a bipolar plate; s2, correcting the position of the bipolar plate; and S3, stacking the bipolar plates. On one hand, on the basis of leveling and zoning gradual adsorption, the deformation rate caused by bending and extrusion during bipolar plate taking is reduced, on the basis of preliminary position correction of the relative positions of the groove walls, the later position correction difficulty is reduced, and on the basis of alignment of the transferring module and the taking module and opposite cooperation of the pressure relief direction and the adsorption direction, the subsequent position correction difficulty is reduced. In combination with the up-down floating of the transfer module, the flat transfer of the bipolar plate is realized without hollowing or deformation; and on the other hand, extrusion deformation caused by beating and aligning transition is avoided based on adsorption force limitation of the position correction platform, meanwhile, the bipolar plates are adsorbed or unloaded based on the floating transfer module, the deviation probability of the positions of adsorption points is reduced, and alignment and material collection of the multiple bipolar plates are facilitated.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of product carrying and transfer, and particularly relates to a shifting transfer and material collecting process of a bipolar plate. BACKGROUND

[0002] The bipolar plate is also called a current collecting plate, and is one of important components of a fuel cell of an electric vehicle.

[0003] At present, carrying and stacking are common transportation procedures in the production and assembly of the bipolar plate. For example, after the bipolar plate is placed in a material box and cleaned, the bipolar plate needs to be taken out of the material frame, aligned and calibrated in orientation, and then transferred to a material storage frame to complete the material collecting.

[0004] However, the following technical defects exist in the above implementation process:

[0005] 1) Since multiple grooves are arrayed in the material box, and each bipolar plate is placed in each groove in the same direction, the bipolar plate is not in a uniform posture in the groove due to its ultra-thin thickness (generally 0.1-0.3 mm), and is distributed in a disorderly manner such as forward tilting, backward tilting, arching forward, arching backward, etc. The bipolar plate is taken out by adsorption at the same angle. As a result, in the adsorption process, the relative bending and extrusion probability of the bipolar plate is greatly increased due to the difference in adsorption position, causing the bipolar plate to deform, and further leading to performance degradation, sealing failure, increased contact resistance, uneven flow field, shortened service life, and possible safety hazards such as short circuit and liquid leakage;

[0006] 2) In the calibration process of the bipolar plate, the bipolar plate needs to be adsorbed and transferred from the mechanical hand. In the adsorption and transfer process, the bipolar plate is adsorbed in parallel and synchronous negative pressure is formed, but once the adsorption point position deviates, the local bipolar plate will deform in a hollow shape, so the deformation rate of the bipolar plate is high. In the position alignment process, the end alignment method is basically used for alignment, and in the alignment process, the bipolar plate is not limited and is easy to deform due to excessive alignment;

[0007] 3) In the stacking process, the vacuum adsorption formed by the shifting transfer loses the negative pressure, and according to the stacking of the ultra-thin product, it is difficult to realize the alignment and material collecting of multiple bipolar plates. SUMMARY

[0008] The technical problem to be solved by the application is to overcome the deficiencies of the prior art and provide an improved shifting transfer and material collecting process of a bipolar plate.

[0009] To solve the above technical problems, the application adopts the following technical solutions:

[0010] A kind of shift of bipolar plate and material receiving process, bipolar plate has positive back, bipolar plate is arranged in each material groove of array distribution, and the equipment used includes material taking unit, alignment unit, stacking unit, and its process includes the following steps:

[0011] S1, bipolar plate material taking

[0012] Material taking module is inserted into material groove along the up-down direction, and is pushed along the suction direction to flatten the bipolar plate and adhere to the groove wall and the suction end surface between the suction head, then based on the suction partition of each material taking module arranged in the length direction of itself, gradually partitioned and adsorbed from the groove bottom to the groove opening, and the material taking module is removed from the material groove to complete the material taking;

[0013] S2, bipolar plate alignment

[0014] The shift module capable of floating up and down is arranged on the alignment platform, the material taking module shifts the bipolar plate to the lower side of the shift module with the positive face upward, the shift module is aligned with the suction partition of the material taking module based on the transfer partition formed on the shift module along the length direction of itself, and the bipolar plate is transferred to the transfer end surface in a flat state by keeping the pressure relief direction and the suction direction opposite;Then the bipolar plate is gradually laid on the alignment platform by the shift module based on the partition pressure relief, and the alignment platform forms the adsorption force to keep the bipolar plate in a flat state, and the alignment platform is rotated to align the end of the bipolar plate;

[0015] S3, bipolar plate stacking

[0016] The bipolar plate aligned is gradually adsorbed on the transfer end surface by the shift module capable of floating up and down with the positive face upward, then the shift module is transversely moved above the material receiving carrier, and the bipolar plate is unloaded to the material receiving carrier based on the gradual pressure relief of the shift module capable of floating up and down.

[0017] According to one specific implementation and preferred aspect of the present application, in step S1, the number of each row of material grooves formed by the material box is an integer multiple of the number of material taking. In this way, material taking will not be missed, or a corresponding number of bipolar plates cannot be taken at a time, for example, four at a time. If there are sixteen material grooves in a single row of the material box, four times of taking in a single row can be achieved. However, if there are fifteen or seventeen in a single row, the number of taking in a single row must be increased, and four bipolar plates cannot be taken at a time, resulting in a decrease in the efficiency of material taking.

[0018] According to another specific implementation and preferred aspect of the present application, in step S1, the rear groove wall of the material groove is used as the reference surface, and the bipolar plate is flattened by pushing it backward by the material taking module. By using the same reference, the flatness of the bipolar plate after being adsorbed is improved by the relative flattening operation, and the probability of damage caused by bending of the bipolar plate is reduced.

[0019] Preferably, there is a right-angle partition in the trough, wherein the right-angle partition and the rear trough wall form a material placement area, and the right-angle partition and the front trough wall form an insertion area, the bipolar plate is placed in the material placement area, and the material taking module is inserted into the insertion area and pushed into the material placement area to flatten the bipolar plate. Based on the material placement area, the placement space of the bipolar plate is further reduced, and the bipolar plate is also prevented from being squeezed and deformed when the material taking module is inserted into the trough.

[0020] In some embodiments, the material taking unit includes a material taking manipulator and a material taking module installed at the output end of the material taking manipulator, wherein the material taking manipulator cooperates with the material taking module based on multi-axis movement to move to any position in a three-dimensional coordinate system.

[0021] Preferably, the material taking module forms a material taking component including a plurality of adsorption templates arranged side by side and spaced apart, and a vacuum pump in communication with each adsorption template, wherein each adsorption template forms a plurality of adsorption holes inward from the adsorption end face, each group of adsorption holes is in communication with the vacuum pump, and a plurality of adsorption zones are formed between the plurality of groups of adsorption holes based on pipelines and solenoid valves. The use of adsorption holes for zoning enables a sequential order in the adsorption process, which is conducive to the discharge of interfering air flow generated during adsorption and the realization of high-quality flat material taking.

[0022] According to another embodiment and preferred aspect of the present application, in step S2, the position correction unit includes a position correction platform, a transfer module, a flattening module, and a direction alignment module, wherein the position correction platform forms a same number of position correction areas as the number of adsorbed bipolar plates, and each position correction area forms a negative pressure auxiliary flattening; the transfer module includes the same material taking component as the material taking module, a floating seat, a lifting power device, and a horizontal movement power device; the flattening module includes a positioning fence formed in each position correction area, a flattening module strip moving relative to the positioning fence, and a flattening power device; and the direction alignment module is a rotating power device capable of rotating, and the rotating power device drives the position correction platform to rotate around the vertical direction by 180° as a movement cycle for alignment. In short, the position correction mainly includes a transfer process, an alignment correction process, and a direction correction process, thereby providing necessary conditions for subsequent alignment and stacking. Meanwhile, in the transfer process, the bipolar plate is kept in a flat state during transfer to the transfer end face based on the cooperation of floating and keeping the pressure relief direction opposite to the adsorption direction, thereby reducing the deformation rate of the bipolar plate during the transfer process; the alignment correction requires bottom negative pressure adsorption, but the adsorption force only needs to satisfy the slow movement of the flattening, thereby avoiding the squeezing deformation of the bipolar plate during flattening; the direction correction is not required in principle, but once all the bipolar plates in the material box do not match in direction, the rotating adjustment is required at this time.

[0023] In some embodiments, the floating seat includes a fixed frame and a connecting frame elastically mounted on the fixed frame, wherein the material taking component is fixedly installed on the fixed frame, and the connecting frame is connected with the lifting power device. The so-called floating is formed based on elastic connection to assist the flat transfer of the bipolar plate.

[0024] In some embodiments, the lifting power device comprises a device base, a lifting seat mounted on the device base, and a lifting power member driving the lifting seat to move up and down, wherein the lifting seat is fixedly connected with the connecting frame. The up and down direction displacement adjustment is satisfied, thereby implementing the adsorption or unloading of the bipolar plate.

[0025] In some embodiments, the horizontal moving power device comprises a truss between the positioning platform and the material receiving platform, a horizontal moving power seat sliding on the truss, and a horizontal moving power member, wherein the device base is fixedly connected with the horizontal moving power seat. The truss moving mode is adopted, and the bipolar plate is transferred more stably.

[0026] According to another embodiment and preferred aspect of the present application, in the aligning in step S2, the aligning is performed based on the aligning mold strip movement with the positioning fence as the reference, and the aligning action comprises length direction aligning and width direction aligning of the positioning platform. The length and width direction aligning is performed to realize the position correction of the bipolar plate.

[0027] Preferably, the positioning fence and the aligning mold strip correspond to each positioning platform, and the plurality of aligning mold strips are synchronously moved to align. In this way, the aligning efficiency is high.

[0028] According to another embodiment and preferred aspect of the present application, in step S3, the stacking unit stacks the bipolar plates based on the circulation supply of the material receiving carriers. Based on the circulation supply of the material receiving carriers, the material taking and the positioning can be continuously operated, thereby increasing the stacking efficiency of the bipolar plates.

[0029] Preferably, the stacking unit has a stacking temporary storage area and a stacking carrier moving area, and the stacking unit comprises a material receiving carrier feeding line communicated with the stacking temporary storage area, a material receiving carrier discharging line communicated with the stacking carrier moving area, and a transfer device used for connecting the material receiving carrier feeding line and the material receiving carrier discharging line. The transfer device is used to realize the connection and transfer between the two lines.

[0030] Specifically, the transfer device comprises a transfer roller group between the material receiving carrier feeding line and the material receiving carrier discharging line, a first transfer roller group in the stacking temporary storage area and capable of lifting up and down for transfer, and a second transfer roller group in the stacking carrier moving area and capable of lifting up and down for transfer, wherein the transfer roller group forms a roller conveying surface higher than the conveying surface formed by the material receiving carrier feeding line and the material receiving carrier discharging line, and when the first transfer roller group, the second transfer roller group and the transfer roller group are aligned, the material receiving carrier is transferred from the stacking temporary storage area to the stacking carrier moving area. The high-position lifting and alignment principle is adopted to realize the horizontal movement of the material receiving carrier, thereby realizing the continuous material receiving of the material receiving carrier.

[0031] Thanks to the above technical solutions, the present application has the following advantages compared with the prior art:

[0032] In the existing bipolar plate transfer and material collection process, multiple material grooves are arranged in an array in the material box, and each bipolar plate is placed in each material groove in the same direction. However, due to the ultra-thin nature of the bipolar plate (generally 0.1-0.3mm thick), the bipolar plate does not have a uniform posture in the material groove and is distributed in a chaotic manner, such as forward tilting, backward tilting, arching forward, arching backward, etc. The material is taken by maintaining the same angle for adsorption, which greatly increases the relative bending and extrusion probability of the bipolar plate itself due to the different adsorption positions during the adsorption process, causing the bipolar plate to deform, thereby leading to performance degradation, sealing failure, increased contact resistance, uneven flow field, shortened service life, and potential safety hazards such as short circuit and liquid leakage. At the same time, during the calibration process of the bipolar plate, the bipolar plate is adsorbed and transferred from the mechanical hand. During the adsorption and transfer process, the bipolar plate is adsorbed in parallel and the adsorption is synchronized to form negative pressure. If the adsorption point position deviates, it will cause local hollow deformation of the bipolar plate, resulting in a high deformation rate of the bipolar plate. In addition, during the alignment process, the end alignment method is basically used for alignment, and during the alignment process, the bipolar plate is not restricted, which can easily cause deformation due to excessive alignment. Furthermore, during the stacking process, the vacuum adsorption formed by the transfer loses the negative pressure at the same time, and it is difficult to achieve alignment of multiple bipolar plates for material collection based on the ultra-thin product unloading and stacking. The present application designs the displacement transfer and material collection process of the bipolar plate as a whole, cleverly solves the deficiencies and defects of the existing technology, and after using the process, first, the material taking module is inserted into the material groove in the up-down direction, and then the bipolar plate is flattened and attached between the groove wall of the material groove and the adsorption end face of the adsorption head by pushing in the adsorption direction. Then, based on the adsorption partition of the material taking module arranged in the length direction, the bipolar plate is gradually partitioned and adsorbed from the groove bottom to the groove opening, and the material taking module is removed from the material groove to complete the material taking. Second, the transfer module capable of floating up and down is arranged on the alignment platform, the bipolar plate is displaced to the lower side of the transfer module with the front surface facing upward, the transfer partition formed on the transfer module is aligned with the adsorption partition of the material taking module below, and the bipolar plate is transferred to the transfer end face in a flat state by maintaining the opposite cooperation of the pressure relief direction and the adsorption direction. Then, the bipolar plate is gradually laid on the alignment platform based on the partition pressure relief of the floating transfer module, and the alignment platform forms an adsorption force to keep the bipolar plate in a flat state for end-to-end alignment, and the alignment platform is rotated to align the bipolar plate.Finally, the bipolar plates, facing upwards, are gradually adsorbed onto the transfer end face by the vertically floating transfer module. Then, the transfer module is moved laterally above the receiving rack, and the bipolar plates are unloaded onto the receiving rack by gradually depressurizing the vertically floating transfer module. Therefore, this invention, on the one hand, reduces the deformation rate of bipolar plates caused by bending and compression during material handling due to leveling and gradual adsorption in sections. Furthermore, the initial alignment based on the relative positions formed by the groove walls reduces the difficulty of subsequent alignment. Simultaneously, the alignment of the transfer module and the material handling module, maintaining the cooperation of opposite depressurization and adsorption directions, combined with the vertical floating of the transfer module, ensures flat transfer of bipolar plates without voids or deformation. On the other hand, the adsorption force limitation of the alignment platform avoids excessive alignment that could cause compression deformation. Simultaneously, the adsorption or unloading of bipolar plates by the floating transfer module not only reduces the probability of deviation in the adsorption point position but also facilitates the alignment and receiving of multiple bipolar plates. Attached Figure Description

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0034] Figure 1 This is a schematic diagram of the bipolar plate transfer and receiving device of the present invention;

[0035] Figure 2 for Figure 1 A top-down view;

[0036] Figure 3 for Figure 1 A schematic diagram of the structure of the material extraction module;

[0037] Figure 4 for Figure 1 Structural diagram of the centering unit and the palletizing unit (in the centering state);

[0038] Figure 5 for Figure 4 Front view diagram;

[0039] Figure 6 for Figure 5 A top-down view;

[0040] Figure 7 for Figure 1 Structural diagram of the middle-level unit and the palletizing unit (in the receiving state);

[0041] Figure 8 for Figure 1 Schematic diagram of the structure of the middle palletizing unit;

[0042] The components include: ① material handling unit; 1. material handling robot; 2. material handling module; 20. adsorption template; 21. vacuum pump;

[0043] ②, alignment unit; 3, alignment platform; 30, alignment area; 4, transfer module; 40, material taking component; 41, floating seat; 410, fixing frame; 411, connecting frame; 42, lifting power device; 420, device seat; 421, lifting seat; 422, lifting power piece; 43, horizontal movement power device; 430, truss; 431, horizontal movement power seat; 432, horizontal movement power piece; 5, alignment module; 50, positioning fence; 51, alignment module; 6, orientation alignment module;

[0044] ③, stacking unit; 7, material receiving carrier; 8, material receiving carrier feeding line; 9, material receiving carrier unloading line; 10, adapter; 100, intermediate adapter roller group; 101, first adapter roller group; 102, second adapter roller group;

[0045] M, bipolar plate; H, material box; h1, material groove; h2, right-angle partition. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below in combination with the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0048] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can include at least one of the features explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0051] like Figures 1 to 8 As shown, the bipolar plate transfer and receiving equipment in this embodiment mainly includes a material handling unit ①, a positioning unit ②, and a stacking unit ③.

[0052] Specifically, the bipolar plate M has a front and a back, and the material box H has multiple material slots h1 arranged in an array. Each pair of adjacent material slots h1 are relatively separated. Each material slot h1 is based on the rear wall and right-angled spacers h2 are arranged inside the material slot h1. The right-angled spacers h2 divide the material slot h1 into a material placement area and an insertion area from front to back. The bipolar plate M is placed in each material placement area in the same direction.

[0053] The material handling unit ① includes a material handling robot 1 and a material handling module 2 installed at the output end of the material handling robot 1, wherein the material handling robot 1 moves the material handling module 2 to any position in the three-dimensional coordinate system based on multi-axis motion cooperation.

[0054] Specifically, the taking machine hand 1 is a commonly used robot in the market, which can be directly purchased; the taking module 2 forms a taking component 40, which includes multiple suction templates 20 arranged side by side and spaced apart, and a vacuum pump 21 communicating with each suction template 20, wherein each suction template 20 forms multiple groups of suction holes 20a from the suction end face inward, each group of suction holes 20a communicates with the vacuum pump 21, and multiple groups of suction holes 20a form multiple suction zones based on pipelines and electromagnetic valves. In this example, multiple suction zones are arranged in sequence along the length direction of the suction template 20, and the width of the bipolar plate M is greater than the width of the suction template 20.

[0055] In some specific embodiments, the number of each row of discharge grooves h1 formed by the material box H is an integer multiple of the number taken by the taking module 2. In this way, taking will not be missed, or a corresponding number of bipolar plates M cannot be taken at a time, for example, four at a time. If the material box H has sixteen discharge grooves in a single row, four times in a single row can be taken, but if the material box H has fifteen or seventeen in a single row, the taking frequency in a single row must be increased, and four bipolar plates M cannot be taken at a time, resulting in a decrease in taking efficiency. In this example, the suction template 20 has four groups, and is arranged side by side and spaced apart. The single row of the material box H is an integer multiple of four (in this example, there are eight discharge grooves in a single row), and each suction template 20 is equipped with one vacuum pump 21 or multiple vacuum pumps 21 based on the number of partitions. No matter how it is arranged, as long as it can realize partitioning and suction or pressure relief in sequence.

[0056] The position correction unit ② includes a position correction platform 3, a transfer module 4, a alignment module 5, and a direction alignment module 6. The position correction platform 3 forms the same number of position correction zones 30 as the number of bipolar plates M taken by the taking module 2, and each position correction zone 30 forms a negative pressure auxiliary alignment. The transfer module 4 has the same taking component 40, floating seat 41, lifting power device 42, and horizontal moving power device 43 as the taking module 2. The alignment module 5 includes a positioning fence 50 formed on each position correction zone 30, an alignment strip 51 moving relative to the positioning fence 50, and an alignment power device. The direction alignment module 6 is a rotating power device that can rotate, and the rotating power device drives the position correction platform 3 to rotate around the vertical direction by 180° as a movement cycle for direction alignment. In short, the position correction mainly includes a transfer process, an alignment correction process, and a direction correction process, thereby providing necessary conditions for subsequent alignment and stacking. At the same time, during the transfer process, the bipolar plates M are kept in a flat state by floating and keeping the pressure relief direction opposite to the suction direction, thereby reducing the deformation rate of the bipolar plates M during the transfer process; the alignment correction requires negative pressure suction at the bottom, but the suction force only needs to satisfy the slow movement of the alignment, thereby avoiding the extrusion deformation of the bipolar plates M during the alignment; the direction correction is not necessary in principle, but once all the bipolar plates M in the material box H do not match in direction, the rotating adjustment is needed.

[0057] In this example, the pick-up component 40 of the transfer module 4 is structurally identical to the suction template 20 and the vacuum pump 21 of the pick-up module 2, and can also form a so-called zoned suction, which will not be described here. The floating seat 41 includes a fixed frame 410, a connecting frame 411 elastically mounted on the fixed frame 410, wherein the pick-up component 40 is fixedly mounted on the fixed frame 410, and forms a so-called floating based on elastic connection to assist the flat transfer of the bipolar plate M. The lifting power 42 includes a base 420, a lifting seat 421 mounted on the base 420, and a lifting power 422 driving the lifting seat 421 to move up and down, wherein the lifting seat 421 is fixedly connected with the connecting frame 411. It meets the up and down direction displacement adjustment, thereby implementing the suction or unloading of the bipolar plate M. The horizontal moving power 43 includes a truss 430 located between the positioning platform 3 and the material receiving platform, a horizontal moving power seat 431 sliding on the truss 430, and a horizontal moving power 432, wherein the base 420 is fixedly connected with the horizontal moving power seat 431. The truss moving mode is adopted to transfer the bipolar plate M more stably. The alignment module 5 is divided into a length direction alignment group and a width direction alignment group, wherein each positioning area 30 forms a positioning fence 50 in the length and width directions, and the alignment template 51 is located on the corresponding side, and four positioning areas 30, the corresponding side layout four alignment templates 51, and based on the synchronous and relative positioning fence 50 movement of the four alignment templates 51, the alignment is performed, and the length direction and the width direction are not distinguished in sequence for alignment operation.

[0058] The stacking unit ③ stacks the bipolar plates M based on the mode of circulating supply of the material receiving carrier 7. Based on the circulating supply of the material receiving carrier 7, the pick-up and positioning operation can be realized without stopping, thereby increasing the stacking efficiency of the bipolar plates M.

[0059] In this example, the stacking unit ③ has a stacking temporary storage area and a stacking transfer area, and the stacking unit ③ includes a material receiving carrier supply line 8 communicating with the stacking temporary storage area, a material receiving carrier discharge line 9 communicating with the stacking transfer area, and a connection device 10 for connecting the material receiving carrier supply line 8 and the material receiving carrier discharge line 9. The connection device 10 realizes the connection and transfer between the two lines.

[0060] Specifically, the connection device 10 includes a transfer connection roller group 100 located between the material receiving carrier supply line 8 and the material receiving carrier discharge line 9, a first connection roller group 101 located in the stacking temporary storage area and capable of lifting up and down for transfer, and a second connection roller group 102 located in the stacking transfer area and capable of lifting up and down for transfer, wherein the transfer connection roller group 100 forms a roller conveying surface higher than the conveying surface formed by the material receiving carrier supply line 8 and the material receiving carrier discharge line 9, and when the first connection roller group 101, the second connection roller group 102 and the transfer connection roller group 100 are aligned, the material receiving carrier 7 is transferred from the stacking temporary storage area to the stacking temporary storage area. The high lifting and alignment principle is adopted to realize the horizontal movement of the material receiving carrier 7, thereby realizing the continuous material receiving of the material receiving carrier.

[0061] In this example, the receiving carrier supply line 8 and the receiving carrier discharge line 9 adopt roller conveying lines, and the first connecting roller group 101 and the second connecting roller group 102 are misaligned with the corresponding rollers to form a jacking connection.

[0062] In summary, the implementation process of the embodiment is as follows:

[0063] S1, taking out the bipolar plate

[0064] The taking-out module is inserted into the insertion area of the tank in the up-down direction and is pushed into the placement area, so as to flatten and adhere the bipolar plate between the rear tank wall of the tank and the adsorption end face of the adsorption head, and then the bipolar plate is gradually adsorbed from the tank bottom to the tank opening based on the adsorption subarea of the taking-out module arranged in the length direction of the taking-out module, and the taking-out module is removed from the tank to complete the taking-out;

[0065] S2, correcting the position of the bipolar plate

[0066] The transfer module capable of floating up and down is arranged on the correction platform, the taking-out module moves the bipolar plate to the lower side of the transfer module with the front face upward, the transfer subarea formed on the transfer module is aligned with the adsorption subarea of the taking-out module based on the transfer subarea arranged in the length direction of the transfer module, and the bipolar plate is kept in a flat state and transferred to the transfer end face by keeping the pressure relief direction and the adsorption direction opposite; then the bipolar plate is gradually laid on the correction platform by the transfer module based on the subarea pressure relief, and the correction platform forms an adsorption force to keep the bipolar plate in a flat state and align the end portions, and the correction platform is rotated to correct the orientation of the bipolar plate.

[0067] S3, stacking the bipolar plate

[0068] The bipolar plate corrected on the correction platform is gradually adsorbed on the transfer end face by the transfer module capable of floating up and down, and then the transfer module is moved horizontally above the receiving carrier, and the bipolar plate is unloaded to the receiving carrier by gradually releasing the pressure based on the transfer module capable of floating up and down, and when the receiving carrier is completed, the receiving carrier is connected to the receiving carrier supply line from the receiving carrier discharge line by lifting the first connecting roller group and the second connecting roller group, until the first connecting roller group, the second connecting roller group, and the transfer connecting roller group are aligned, the receiving carrier is moved from the stacking temporary storage area to the stacking temporary storage area, at this time, the first connecting roller group and the second connecting roller group are lowered, and the receiving carrier is located on the conveying surface of the receiving carrier discharge line to complete the receiving.

[0069] Meanwhile, for the cyclic feeding mode of stacking, in step S3, after the first connecting roller group and the second connecting roller group are lowered, the next receiving carrier is positioned by the receiving carrier supply line, so that a cyclic operation can be formed.

[0070] In summary, after adopting the process, firstly, the material taking module is inserted into the material groove along the up-down direction and pushed along the suction direction to flatten the bipolar plate and adhere to the groove wall and the suction end surface of the suction head, and then the bipolar plate is gradually adsorbed from the groove bottom to the groove opening based on the adsorption partition of the material taking module arranged along the length direction, and the material taking module is removed from the material groove to complete the material taking; secondly, the transfer module capable of floating up and down is arranged on the positioning platform, the material taking module is displaced to the lower side of the transfer module with the front face upward, the transfer partition formed on the transfer module is aligned with the adsorption partition of the material taking module below based on the transfer partition arranged along the length direction, and the bipolar plate is kept flat and transferred to the transfer end surface by keeping the cooperation of the opposite pressure relief direction and the adsorption direction; then the bipolar plate is gradually laid on the positioning platform based on the partition pressure relief of the floating transfer module, and the positioning platform forms an adsorption force to keep the bipolar plate in a flat state and align the end portions, and the positioning platform is rotated to correct the orientation of the bipolar plate; finally, the bipolar plate on the positioning platform is gradually adsorbed on the transfer end surface by the floating transfer module, then the transfer module is moved horizontally above the material receiving rack, and the bipolar plate is unloaded to the material receiving rack based on the gradual pressure relief of the floating transfer module, so that the bipolar plate is kept flat and transferred without air drum or deformation by the cooperation of the opposite pressure relief direction and the adsorption direction based on the alignment of the transfer module and the material taking module, and the floating of the transfer module.Meanwhile, in the process of transferring, the bipolar plates are kept in a flat state and transferred to the transfer end face based on the cooperation of floating and keeping the opposite directions of pressure relief and adsorption, so as to reduce the deformation rate of the bipolar plates in the process of transferring; the alignment correction needs bottom negative pressure adsorption, but the adsorption strength only needs to meet the requirement of slow movement for alignment, so as to avoid extrusion deformation of the bipolar plates during alignment; the orientation correction is not needed in principle, but once all the bipolar plates in the magazine do not match in orientation, the rotation adjustment is needed at this time; the seventh aspect is based on length and width direction alignment to realize the position correction of the bipolar plates, meanwhile, the positioning relies on the grid and the alignment die strip corresponds to the layout of each alignment platform, and the multiple alignment die strips move synchronously for alignment. In this way, the alignment efficiency is high; the eighth aspect is based on the circulation supply of the material receiving carrier to realize the operation of taking material and correcting position without stop, so as to increase the stacking efficiency of the bipolar plates, and the connection and transfer between the two lines are realized based on the adapter, that is, the horizontal movement of the material receiving carrier is realized based on the principle of high position lifting and alignment, so that the continuous material receiving of the material receiving carrier can be realized.

[0071] The above detailed description of the present application is intended to enable the person skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application, and any equivalent changes or modifications made according to the spirit and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A process for shifting and collecting bipolar plates, the bipolar plates having front and back surfaces, the bipolar plates being arranged in a same direction in a magazine of each of a plurality of slots arranged in an array, and the process employing a device comprising a taking unit, a positioning unit, and a stacking unit, characterized in that, The method comprises the following steps: S1, taking out the bipolar plate The taking-out module is inserted into the trough along the up-down direction and is pushed along the suction direction to flatten the bipolar plate and fit it between the trough wall and the suction end surface of the suction head, and then the bipolar plate is gradually adsorbed from the trough bottom to the trough opening based on the adsorption subareas of the taking-out module arranged in the length direction of the taking-out module, and the taking-out module is removed from the trough to complete the taking-out; S2, bipolar plate alignment The alignment platform is arranged with a transfer module capable of floating up and down, the taking-out module moves the bipolar plate from the front to the bottom of the transfer module, the transfer subareas formed on the transfer module are aligned with the adsorption subareas of the taking-out module, and the bipolar plate is transferred to the transfer end surface in a flat state by keeping the pressure relief direction and the adsorption direction opposite; then the bipolar plate is gradually laid on the alignment platform by the transfer module based on the subarea pressure relief, and the alignment platform forms an adsorption force to keep the bipolar plate in a flat state and align the end surfaces, and the alignment platform is rotated to align the bipolar plate; S3, bipolar plate stacking The bipolar plate on the alignment platform is gradually adsorbed on the transfer end surface by the up-down floating transfer module, then the transfer module is moved horizontally above the material receiving rack, and the bipolar plate is unloaded to the material receiving rack based on the gradual pressure relief of the up-down floating transfer module.

2. The process for shifting and collecting of bipolar plates according to claim 1, characterized in that, In step S1, the number of each row of troughs formed by the material box is an integer multiple of the number of taking-out modules.

3. The process for shifting and collecting of bipolar plates according to claim 1, characterized in that, In step S1, the rear wall of the trough is used as the reference surface, and the taking-out module is pushed backward to flatten the bipolar plate relative to the reference surface.

4. The process for shifting and collecting of bipolar plates according to claim 3, characterized in that, The trough has a right-angle partition, which forms a material placement area between the right-angle partition and the rear wall, and forms an insertion area between the right-angle partition and the front wall, and the bipolar plate is placed in the material placement area, and the taking-out module is inserted from the insertion area and pushed into the material placement area to flatten the bipolar plate.

5. The process for shifting and collecting of bipolar plates according to claim 1, characterized in that, The taking-out unit comprises a taking-out manipulator and a taking-out module installed on the output end of the taking-out manipulator, and the taking-out manipulator moves the taking-out module to any position in the three-dimensional coordinate system based on the multi-axis motion cooperation.

6. The process for shifting and collecting of bipolar plates according to claim 5, characterized in that, The taking-out module forms a taking-out component comprising a plurality of adsorption templates arranged side by side, and a vacuum pump connected to each adsorption template, wherein each adsorption template forms a plurality of adsorption holes inward from the adsorption end surface, each group of adsorption holes is connected to the vacuum pump, and a plurality of adsorption areas are formed between the groups of adsorption holes based on the pipeline and the electromagnetic valve.

7. The process for shifting and collecting of bipolar plates according to claim 1, characterized in that, In step S2, the alignment unit comprises an alignment platform, a transfer module, an alignment module, and a direction alignment module, wherein the alignment platform forms the same number of alignment areas as the number of taking-out modules, and each alignment area forms a negative pressure to assist alignment; the transfer module comprises the same taking-out component as the taking-out module, a floating seat, a lifting power device, and a horizontal power device; the alignment module comprises a positioning fence formed in each alignment area, an alignment strip moving relative to the positioning fence, and an alignment power device; the direction alignment module is a rotating power device capable of rotating, and the rotating power device drives the alignment platform to rotate around the vertical direction by 180° as a movement cycle.

8. The process for shifting and collecting of bipolar plates according to claim 7, characterized in that, The floating seat comprises a fixing frame, a connecting frame elastically mounted on the fixing frame, wherein the material taking component is fixedly mounted on the fixing frame, and the connecting frame is connected with the lifting power.

9. The process for shifting and collecting of bipolar plates according to claim 8, characterized in that, The lifting power comprises a seat, a lifting seat mounted on the seat, and a lifting power piece driving the lifting seat to move up and down, wherein the lifting seat is fixedly connected with the connecting frame.

10. The process for shifting and collecting of bipolar plates according to claim 9, characterized in that, The horizontal moving power comprises a truss between the positioning platform and the material receiving platform, a horizontal moving power seat sliding on the truss, and a horizontal moving power piece, wherein the seat is fixedly connected with the horizontal moving power seat.

11. The process for shifting and collecting of bipolar plates according to claim 7, characterized in that, In the aligning in step S2, the aligning is performed based on the aligning mold strip movement with the positioning fence as the reference, and the aligning action comprises length direction aligning and width direction aligning of the positioning platform.

12. The process for shifting and collecting of bipolar plates according to claim 11, characterized in that, The positioning fence and the aligning mold strip correspond to the layout of each positioning platform, and multiple aligning mold strips move synchronously to align.

13. The process for shifting and collecting of bipolar plates according to claim 1, characterized in that, In step S3, the stacking unit stacks the bipolar plates based on the mode of cyclically supplying the material receiving carriers.

14. The process for shifting and collecting of bipolar plates according to claim 1 or 13, characterized in that, The stacking unit has a stacking temporary storage area and a stacking carrier moving area, and comprises a material receiving carrier feeding line communicated with the stacking temporary storage area, a material receiving carrier unloading line communicated with the stacking carrier moving area, and a transfer device for connecting the material receiving carrier feeding line and the material receiving carrier unloading line.

15. The process for shifting and collecting of bipolar plates according to claim 14, characterized in that, The transfer device comprises a transfer transfer roller group between the material receiving carrier feeding line and the material receiving carrier unloading line, a first transfer roller group in the stacking temporary storage area and capable of lifting up and down, and a second transfer roller group in the stacking carrier moving area and capable of lifting up and down, wherein the transfer transfer roller group forms a roller conveying surface higher than the conveying surface formed by the material receiving carrier feeding line and the material receiving carrier unloading line, and when the first transfer roller group, the second transfer roller group and the transfer transfer roller group are aligned, the material receiving carrier moves from the stacking temporary storage area to the stacking carrier moving area.

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