Flipping device and preparation system for membrane electrode

Abstract

The present invention relates to a flipping device, comprising a support frame, an adsorption mechanism, a first connecting component and a material picking piece. The adsorption mechanism is reciprocatably arranged on the support frame along a third direction and has a first adsorption surface for adsorbing or releasing a workpiece; the first connecting component is reciprocatably arranged on the support frame along a fourth direction at an angle to the third direction; the material picking piece is rotatably connected to the first connecting component around a rotation axis perpendicular to the third direction, the material picking piece has a second adsorption surface for adsorbing or releasing the workpiece, and the second adsorption surface can be parallel to the first adsorption surface during the rotation of the material picking piece around the rotation axis, and the material picking piece has an alignment position and an avoidance position during the movement of the first connecting component in the fourth direction. The sheet to be processed does not need to be flipped manually, so that the patch bonding on both sides of the sheet to be processed can be automatically performed, which effectively improves the production efficiency. The present invention also relates to a preparation system for membrane electrodes.

Description

Technical Field

[0001] The invention relates to the technical field of fuel cell production equipment, and in particular to a preparation system for a membrane electrode. Background Art

[0002] Proton exchange membrane fuel cell is a fuel cell that directly converts chemical energy into electrical energy by reacting hydrogen and oxygen. It is considered to be one of the best green energy sources of the 20th century due to its advantages such as high energy conversion efficiency, fast start-up at low temperature, no pollution, good durability and high specific power. The membrane electrode is the core component of the proton exchange membrane fuel cell, and the quality of its preparation directly determines the durability of the entire battery.

[0003] The membrane electrode is formed by laminating the five-in-one component and the gas diffusion layer and then cutting it. At present, in the production process of the membrane electrode, the five-in-one component needs to be manually turned over to paste the gas diffusion layer on both sides of the five-in-one component, which cannot realize automated mechanical production and has low production efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a flipping device and a preparation system for membrane electrodes that can improve production efficiency in order to address the problem of low production efficiency of existing membrane electrodes.

[0005] A flipping device, comprising:

[0006] Support frame;

[0007] An adsorption mechanism is disposed on the support frame so as to be reciprocatable along a third direction and has a first adsorption surface for adsorbing or releasing the workpiece;

[0008] A first connecting component is disposed on the support frame so as to be reciprocatably movable along a fourth direction which is angled with the third direction; and

[0009] A pick-up member is rotatably connected to the first connecting assembly about a rotation axis perpendicular to the third direction, the pick-up member has a second adsorption surface for adsorbing or releasing the workpiece, and the second adsorption surface can be parallel to the first adsorption surface during the rotation of the pick-up member about the rotation axis, and the pick-up member has an alignment position and an avoidance position during the movement of the first connecting assembly in the fourth direction;

[0010] When the material picking member is in the alignment position and the first adsorption surface is parallel to the second adsorption surface, the first adsorption surface can be aligned with the second adsorption surface in the third direction;

[0011] When the material picking member is in the avoidance position, the adsorption mechanism is staggered with the first connecting component and the material picking member in the third direction respectively.

[0012] By setting the above-mentioned flipping equipment, the workpiece can be automatically flipped. For the bonding of the sheet to be processed and the patch, the sheet to be processed does not need to be flipped manually, and the bonding of the sheet to be processed can also be performed by other bonding equipment. In this way, the bonding of the patches on both sides of the sheet to be processed can be automatically performed, which effectively improves the production efficiency.

[0013] In one embodiment, the adsorption mechanism includes a first connecting member and an adsorption member, the first connecting member is reciprocably disposed on the support frame along the third direction, the adsorption member is connected to the first connecting member, the adsorption member has the first adsorption surface, and the first adsorption surface is located on the side of the adsorption member away from the first connecting member.

[0014] In one embodiment, the flipping device also includes a first telescopic driving member, which is arranged on the supporting frame, and the telescopic end of the first telescopic driving member is connected to a side of the adsorption member connected to the first connecting member, for driving the adsorption member to reciprocate along the third direction.

[0015] In one embodiment, the flipping device further comprises a second connecting component, the second connecting component is reciprocatably disposed on the first connecting component along the third direction, and the material picking member is rotatably connected to the second connecting component around the rotation axis.

[0016] In one embodiment, the fourth direction is perpendicular to the third direction;

[0017] The support frame is provided with a guide portion extending along the fourth direction;

[0018] The first connecting assembly includes a first connecting plate, a connecting block and a second guide rod;

[0019] The first connecting plate is disposed on the guide portion so as to be reciprocatably movable along the fourth direction;

[0020] The flipping device further includes a second telescopic driving member disposed on the support frame, the connecting block is connected to one side of the first connecting plate, and a telescopic end of the second telescopic driving member is connected to the connecting block, for driving the connecting block to reciprocate along the fourth direction;

[0021] One end of the second guide rod is connected to the side of the first connecting plate away from the connecting block, and the second guide rod extends along the third direction away from the first connecting plate, and the second connecting component is reciprocatingly disposed on the second guide rod in the third direction.

[0022] In one embodiment, the second connecting component includes a second connecting plate and a third connecting plate, the second connecting plate is movably disposed on the first connecting component along the third direction, the third connecting plate is disposed at an angle to the second connecting plate, and the material picking member is rotatably disposed on one side of the third connecting plate around the rotation axis.

[0023] In one embodiment, the flipping device further comprises a flipping mechanism, the flipping mechanism comprises a rotating driving member, a driving wheel, a synchronous belt and a synchronous pulley, the rotating driving member, the driving wheel and the synchronous pulley are all arranged on the second connecting component, and the radial dimension of the driving wheel is the same as the radial dimension of the synchronous pulley;

[0024] The synchronous belt transmission is connected between the rotating driving member and the synchronous belt pulley to drive the synchronous belt pulley to rotate around the rotating axis, and the material picking member is connected to the synchronous belt pulley.

[0025] In one embodiment, the flipping device also includes a controller and a first detection mechanism, the controller is electrically connected to the rotating drive member and the first detection mechanism, respectively, the first detection mechanism is used to detect the driven rotation angle of the synchronous pulley, and the controller is used to control the action of the rotating drive member according to the driven rotation angle.

[0026] A flipping device, comprising:

[0027] Support frame;

[0028] An adsorption mechanism is disposed on the support frame so as to be reciprocatable along a third direction and has a first adsorption surface for adsorbing or releasing the workpiece;

[0029] A first connecting assembly is rotatably disposed on the support frame around a rotation axis parallel to the third direction;

[0030] A pick-up member is rotatably connected to the first connecting component around a rotation axis perpendicular to the third direction, the pick-up member has a second adsorption surface for adsorbing or releasing the workpiece, and the second adsorption surface can be parallel to the first adsorption surface during the rotation of the pick-up member around the rotation axis, and the pick-up member has an alignment position and an avoidance position during the rotation of the first connecting component around the rotation axis;

[0031] When the material picking member is in the alignment position and the first adsorption surface is parallel to the second adsorption surface, the first adsorption surface can be aligned with the second adsorption surface in the third direction;

[0032] When the material picking member is in the avoidance position, the adsorption mechanism is staggered with the first connecting component and the material picking member in the third direction respectively.

[0033] A preparation system for a membrane electrode, the preparation system comprising the flipping device as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic structural diagram of a system for preparing a membrane electrode provided in one embodiment of the present invention;

[0035] Figure 2 for Figure 1 A schematic structural diagram of a positioning device of a preparation system shown;

[0036] Figure 3 for Figure 2 A schematic diagram of a partial structure of a positioning device shown;

[0037] Figure 4 for Figure 3 A schematic diagram of another angle of the partial structure shown;

[0038] Figure 5 for Figure 2 A schematic diagram of the cooperation relationship between the rotation drive mechanism and the pressing drive member of the positioning device shown;

[0039] Figure 6 for Figure 2 A schematic diagram of the structure of the support assembly of the positioning device shown;

[0040] Figure 7 for Figure 6 A schematic structural diagram of the support assembly from another angle shown;

[0041] Figure 8 for Figure 1 A schematic structural diagram of a first pasting device of the preparation system shown;

[0042] Fig. 9 for Figure 1 A schematic diagram of the structure of the turning device of the preparation system shown;

[0043] Fig.10 for Fig. 9 A partial structural schematic diagram of the flipping device shown;

[0044] Fig.11 for Figure 1 A schematic structural diagram of a molding device of the preparation system shown;

[0045] Fig.12 for Figure 1 A schematic structural diagram of an impedance detection device of a preparation system shown;

[0046] Fig.13 for Figure 1The schematic diagram of the structure of the airtightness detection equipment of the preparation system shown. DETAILED DESCRIPTION

[0047] In order to facilitate understanding of the technical solution of the present invention, the processing object of the present invention is explained here; the sheet to be processed in the present invention is a five-in-one component, and the patch is a gas diffusion layer. At the same time, for the bonding method of the existing five-in-one component (hereinafter referred to as five-in-one) and the gas diffusion layer and the specific structure of the membrane electrode, it should be explained that the five-in-one refers to the structure formed by the cathode frame, catalyst layer, proton exchange membrane, catalyst layer and anode frame. The bonding of the existing five-in-one and carbon paper is done manually. The five-in-one and carbon paper are both rectangular sheets, and the area of ​​the five-in-one is larger than that of the carbon paper. Two pieces of carbon paper are manually pasted on the two side surfaces of the five-in-one.

[0048] The efficiency of manual operation is too low, and the preparation system for membrane electrode provided by the present invention can mechanize the bonding of the sheet to be processed and the patch, thereby improving the efficiency.

[0049] See also Figure 1 and Figure 2 In one embodiment of the present invention, a preparation system 100 for a membrane electrode comprises a first station, a second station, a third station, a fourth station and a fifth station, and the preparation system comprises a frame 10, a rotating member 22, a first gripping mechanism 30, a first pasting device 40, a flipping device 50, a second gripping mechanism 60 and a second pasting device 70.

[0050] The rotating member 22 is rotatably disposed on the frame 10 around its own axis. The rotating member 22 has a bearing position 22 , and during the rotation of the rotating member 22 , the bearing position 22 sequentially passes through a first station, a second station, a third station, a fourth station and a fifth station.

[0051] The first grabbing mechanism 30 is disposed on the frame 10 , and is used to sequentially stack the sheet to be processed and the first patch on the carrying position 22 located at the first workstation.

[0052] The first pasting device 40 is disposed on the frame 10 and is located at the second workstation, and is used to paste the first patch on the sheet to be processed.

[0053] The flipping device 50 is arranged on the frame 10 and is located at the third station, and is used for flipping the sheet to be processed with the first patch attached thereto.

[0054] The second grabbing mechanism 60 is disposed on the frame 10 and is used to transfer the second patch to the carrying position 22 of the fourth station so that the second patch is stacked on the other side of the sheet to be processed away from the first patch.

[0055] The second pasting device 70 is disposed on the frame 10 and located at the fifth station, and is used to paste the second patch on the other side of the sheet to be processed located at the fourth station away from the first patch.

[0056] For ease of explanation, the two opposite sides of the sheet to be processed are defined as a first side and a second side, and when the sheet to be processed is placed on the supporting position 22 located at the first workstation, the first side of the sheet to be processed is exposed, and the second side of the sheet to be processed is in contact with the supporting position 22.

[0057] By setting up the above-mentioned preparation system for membrane electrode, the sheet to be processed and the first patch are sequentially grasped and stacked on the supporting position 22 located at the first station by the first grasping mechanism 30, the first patch is stacked on the first side of the sheet to be processed, the rotating member 22 rotates to move the sheet to be processed and the first patch to the second station, the first pasting device 40 at the second station fits the first patch with the first side of the sheet to be processed, and then the rotating member 22 continues to rotate to move the sheet to be processed with the first patch bonded to the third station, the flipping device 50 located at the third station flips the sheet to be processed with the first patch bonded to it, so that the first patch contacts the supporting position 22, and the second side of the sheet to be processed is exposed, the subsequent operations of the fourth station and the fifth station are similar to the operations of the first station and the second station, the fourth station stacks the second patch on the other side of the sheet to be processed away from the first patch, that is, the second side, the second pasting device 70 in the fifth station fits the second patch with the second side of the sheet to be processed, so that the opposite sides of the sheet to be processed are both bonded with patches. In this way, compared with manual lamination, the preparation system can realize the automatic flipping of the sheet to be processed, thereby automatically pasting the patches on both sides of the sheet to be processed, which is more efficient.

[0058] It needs to be explained that the first patch and the second patch are essentially patches of the same specifications, and the first pasting device 40, the second pasting device 70 and the flipping device 50 are located at their corresponding workstations to perform corresponding processing on the workpiece rotated to the workstation. For example, the pasting device performs pasting processing, that is, pasting the sheet to be processed and the patch, and the flipping device 50 performs flipping processing, that is, turning over the sheet to be processed located at the supporting position 22.

[0059] In some embodiments, the rack 10 is a large installation platform, and various devices and mechanisms in the preparation system are installed on the platform.

[0060] See also Figure 1Furthermore, the frame 10 is provided with a first patch material frame 122, a to-be-processed sheet material frame 124 and a second patch material frame 126. The operator adds the first patch, the to-be-processed sheet and the second patch into the corresponding material frames respectively, and the first grabbing mechanism 30 respectively obtains the first patch and the to-be-processed sheet from the first patch material frame 122 and the to-be-processed sheet material frame 124, and the second grabbing mechanism 60 obtains the second patch from the second patch material frame 126. The setting of the raw material frame is to provide a fixed position for obtaining raw materials, which is convenient for the automatic operation of the machine and improves efficiency.

[0061] It can be understood that the position of each device or mechanism in the preparation system can be set according to the supply and demand relationship. For example, the first grasping mechanism 30 is used to transfer the sheet to be processed or the first patch. Then the first grasping mechanism 30 needs to be set on the surrounding side of the sheet material frame 124 and the first patch material frame 122, and the rotating member 22 also needs to be set on the surrounding side of the first grasping mechanism 30 to ensure that the first grasping mechanism 30 transfers the sheet to be processed or the first patch to the rotating member 22.

[0062] See also Figure 3 and Figure 4 In some embodiments, the preparation system further includes a rotary drive member 21, which is disposed on the frame 10 and is used to rotate the rotary drive member 21. Further, the preparation system further includes a controller, which is electrically connected to the rotary drive member 21, the first gripping mechanism 30, the first pasting device 40, the second gripping mechanism 60 and the second pasting device 70, respectively, to control the automatic operation of each mechanism and device.

[0063] Specifically, the rotary drive element 21 is a DD (Direct Driver) motor, and the controller can be a single chip microcomputer for mechanical control. Those skilled in the art can select the type of controller and drive element according to actual conditions, which will not be elaborated here.

[0064] See also Figure 1 In some embodiments, the preparation system further includes a first detection mechanism disposed on the first gripping mechanism 30 and a first detection platform 121 disposed on the frame 10, and the controller is electrically connected to the first gripping mechanism 30 and the first detection mechanism respectively. The first gripping mechanism 30 places the sheet to be processed or the first patch on the first detection platform 121, and the first detection mechanism is used to detect the position information and / or defect information of the sheet to be processed or the first patch located on the first detection platform 121. The controller controls the first gripping mechanism 30 to transfer the sheet to be processed or the first patch on the first detection platform 121 according to the position information and / or defect information.

[0065] In this way, the first detection platform 121 and the first detection mechanism cooperate to align the sheet to be processed with the first patch when the first gripping mechanism 30 transfers the sheet to be processed or the first patch to the carrying position 22 located at the first station, thereby improving the accuracy of pasting.

[0066] In addition, the first detection mechanism can also detect defects in the sheet to be processed or the first patch to obtain defect information of the sheet to be processed or the first patch. The controller transfers the sheet to be processed or the first patch on the first detection platform 121 to the carrying position 22 located at the first workstation or to a position for collecting defective materials based on the defect information, thereby avoiding the use of defective materials and improving product reliability.

[0067] Furthermore, the first detection platform 121 is a transparent platform, and a light source is correspondingly arranged below the first detection platform 121. The light emitted by the light source passes through the transparent platform, thereby illuminating the sheet to be processed or the first patch on the first detection platform 121, which is convenient for detection by the first detection mechanism.

[0068] In some embodiments, the preparation system also includes a second detection mechanism arranged on the second grasping mechanism 60 and a second detection platform 123 arranged on the frame 10, the second detection mechanism is electrically connected to the controller, the second detection platform 123 is located on one side of the rotating member 22, the second grasping mechanism 60 places the second patch on the second detection platform 123, the second detection mechanism is used to detect the second patch and obtain the position information of the second patch, and the controller controls the second grasping mechanism 60 to place the second patch on the second detection platform 123 on the carrying position 22 located at the fourth workstation according to the position information.

[0069] Similarly, the second inspection platform 123 cooperates with the second inspection mechanism so that when the second patch is transferred to the fourth station's carrying position 22, the second gripping mechanism 60 ensures that the second patch is aligned with the to-be-processed piece at the fourth station's carrying position 22, thereby improving the accuracy of pasting. In addition, the second patch can also be inspected for defects to avoid using defective materials and improve product reliability.

[0070] It should be noted that, in order to improve efficiency, the grasping mechanism usually obtains the raw materials from the raw material frame at a fixed position, and is also placed at a fixed position when placed on the bearing position 22, so it is necessary to ensure the accuracy of placement, and in order to ensure the accuracy of placement, it is necessary to ensure the accuracy of grasping. The raw materials in the material frame are placed by the operator, and there may be deviations when placing them. After grasping, the raw materials are placed on the detection platform, and a reference object is usually provided on the detection platform. The detection mechanism set on the grasping mechanism can re-grasp the raw materials according to the relative position between the reference object and the raw materials on the detection platform to ensure the grasping accuracy, thereby ensuring the accuracy of stacking between the patch and the sheet to be processed.

[0071] Specifically, the first detection mechanism and the second detection mechanism have the same function and structure, and are both CCD vision systems. The vision system is well known to those skilled in the art, so it will not be described in detail.

[0072] In some embodiments, the first grasping mechanism 30 and the second grasping mechanism 60 are both industrial robots. Industrial robots are robots that automatically grasp or transfer operations after being given a program. They are common in industrial automation production sites, so they will not be described in detail.

[0073] See also Figure 2 In some embodiments, the rotating member 22 is a turntable, the axis is the central axis of the turntable, and the first station, the second station, the third station, the fourth station, and the fifth station are arranged in sequence and evenly spaced along the circumferential direction of the turntable with the central axis as the center. That is to say, when the turntable rotates one circle, the bearing position 22 on the turntable can pass through the first station, the second station, the third station, the fourth station, and the fifth station in sequence, and each time the station is switched, the rotation angle is the same to ensure smooth operation.

[0074] Furthermore, there are five load positions 22, and the five load positions 22 are evenly spaced along the circumference of the turntable. In this way, the five load positions 22 can correspond to five workstations at the same time, and the workpieces on the five load positions 22 can be operated corresponding to the five workstations. During operation, the turntable can complete the bonding of five sheets to be processed and the patch every time it rotates one circle, which greatly improves the efficiency.

[0075] See also Figure 2-Figure 4 In some embodiments, the membrane electrode preparation system includes a positioning device 20, which includes the above-mentioned frame 10, a rotating member 22 and a rotating driving member 21. It should be noted that the frame 10 in the positioning device 20 can also be a part of the frame 10, as long as it is convenient to install other structures in the positioning device 20.

[0076] Furthermore, the positioning device 20 also includes a sensor bracket 29 and a photoelectric sensor. The sensor bracket 29 is connected to the frame 10, and the photoelectric sensor 29 is arranged on the sensor bracket to determine the starting position of the rotating member 22. That is, when the rotating member 22 rotates to the position that triggers the photoelectric sensor, the rotating member 22 is at the starting position. The subsequent rotating driving member 21 only needs to drive the rotating member 22 to rotate a preset angle.

[0077] In some embodiments, the positioning device 20 also includes a positioning assembly 24, which includes a mounting plate 242 and a plurality of positioning members 244. The mounting plate 242 is disposed on one side of the rotating member 22, and the plurality of positioning members 244 are disposed on a side of the mounting plate 242 away from the rotating member 22 to form the above-mentioned supporting position for placing the sheet to be processed.

[0078] In actual applications, the mounting plate 242 is provided with a plurality of strip holes, and each positioning member 244 includes a positioning pin and a nut threadedly connected to the positioning pin. Each positioning pin is passed through a corresponding strip hole, and the nut is connected to the positioning pin. The positioning pin can move in the strip hole and is fixed by the nut. In this way, the size of the bearing position can be adjusted to accommodate sheets to be processed of different sizes.

[0079] In some embodiments, the positioning device 20 further includes a rotary clamping mechanism 26 . The rotary clamping mechanism 26 has a clamping end located at a side of the rotating member 22 away from the frame 10 . The rotary clamping mechanism 26 includes a clamping state and a releasing state.

[0080] When the rotary clamping mechanism 26 is in a clamping state, the clamping end presses against the side of the sheet to be processed in the bearing position away from the mounting plate 242 . When the rotary clamping mechanism 26 is in a releasing state, the clamping end separates from the sheet to be processed in the bearing position.

[0081] It can be understood that when the rotary clamping mechanism 26 is in a released state, the sheet to be processed on the support position can be removed or placed on the support position, and when the rotary clamping mechanism 26 is in a clamped state, the sheet to be processed on the support position can be clamped and flattened.

[0082] See also Figure 5 Furthermore, the rotary clamping mechanism 26 includes a mounting member and a clamping assembly. The mounting member is mounted on the rotating member 22. The clamping assembly includes a clamping end, and the clamping assembly is reciprocatably disposed on the mounting member along a first direction. During the reciprocating movement of the clamping assembly along the first direction, the clamping end can approach or move away from the mounting plate 242.

[0083] In actual application, the rotating member 22 is provided with a mounting opening 222 passing through its two opposite sides along the first direction, the mounting member is installed in the mounting opening 222, the mounting member has a mounting hole passing through its two opposite ends along the first direction, the clamping assembly is movably provided in the mounting hole along the first direction, and the clamping assembly can rotate around the axis of the mounting hole during the movement along the first direction, so that the clamping end moves along a preset track. Figure 3 , the first direction is the up-down direction.

[0084] The clamping end has a clamping position and an avoidance position during the movement along the preset trajectory. When the rotating clamping mechanism 26 is in the clamping state, the clamping end is located at the clamping position to clamp and flatten the sheet to be processed on the load-bearing position; when the rotating clamping mechanism 26 is in the releasing state, the clamping end is located at the avoidance position, and the sheet to be processed can be placed on the load-bearing position or the sheet to be processed on the load-bearing position can be removed.

[0085] It needs to be explained that the clamping assembly rotates around the axis of the mounting hole while moving in the first direction, so that the clamping end moves along a preset trajectory. Therefore, the movement of the clamping end along the preset trajectory means that the clamping end makes a linear motion in the first direction and rotates around the axis of the mounting hole in a plane perpendicular to the first direction. The combined motion trajectory of the linear motion and the rotation is the preset trajectory.

[0086] In some embodiments, the mounting member includes a connecting portion 261 and a cam portion 262 fixedly connected to each other, the connecting portion 261 is connected to the side of the rotating member 22 facing away from the frame 10, the cam portion 262 extends toward the frame 10 along the first direction and passes through the mounting opening 222, and the mounting hole passes through the connecting portion 261 and the cam portion 262 along the first direction.

[0087] Furthermore, the cam portion 262 is further provided with a spiral groove 2622 connected to the mounting hole, one end of the spiral groove 2622 penetrates the end of the cam portion 262 away from the connecting portion 261, and the other end of the spiral groove 2622 spirally extends along the first direction toward the connecting portion 261. It can be understood that the connecting portion 261 is connected to the rotating member 22, and the cam portion 262 is provided through the mounting opening 222, so the radial dimension of the connecting portion 261 is larger than the radial dimension of the mounting opening 222, and the radial dimension of the cam portion 262 is smaller than the radial dimension of the mounting opening 222.

[0088] In some embodiments, the clamping assembly includes a connecting column 263, a cantilever 264 and a clamping block 265. The connecting column 263 is movably arranged in the mounting hole along a first direction, and the connecting column 263 is rotatable around the axis of the mounting hole during the movement along the first direction; the cantilever 264 is connected to one end of the connecting column 263, the clamping block 265 is connected to one end of the cantilever 264 away from the connecting column 263, and the clamping block 265 has a clamping end facing away from the cantilever 264, and the clamping end faces the rotating member 22.

[0089] It can be understood that the clamping end is the surface of the pressing block 265 facing the rotating member 22. When this surface is pressed against the sheet to be processed, the sheet to be processed can be fixed in the bearing position and the edge of the sheet to be processed can be flattened to facilitate processing.

[0090] Furthermore, the clamping assembly further includes a follower 266 , which is fixedly connected to the connecting post 263 and extends into the spiral groove 2622 to move in the spiral groove 2622 along with the connecting post 263 .

[0091] The connecting column 263 is movable in the mounting hole along the first direction and is rotatable around the axis of the mounting hole, that is, the connecting column 263 is movably inserted into the mounting hole, and the follower 266 connected to the connecting column 263 extends into the spiral groove 2622. When the connecting column 263 moves along the first direction, the follower 266 will move along the spiral groove 2622, and the spiral groove 2622 extends spirally along the first direction, thereby driving the connecting column 263 to rotate, so that it only needs to drive the connecting column 263 to move along the first direction to simultaneously make the connecting column 263 rotate around the axis of the mounting hole.

[0092] Specifically, the follower 266 is a roller rotatably connected to the connecting column 263 around its own axis, so that the follower 266 can move more smoothly in the spiral groove 2622 when the connecting column 263 moves along the first direction.

[0093] In some embodiments, the positioning device 20 further includes a clamping driving member 27 , which is disposed on the frame 10 , and is used to drive the clamping assembly to move along a first direction when the rotating member 22 rotates to a preset position.

[0094] Further, when the rotating member 22 rotates to a preset position, the driving end of the pressing driving member 27 can abut against one end of the connecting column 263 toward the frame 10 during the extension process to drive the connecting column 263 to move along the first direction. Specifically, the pressing driving member 27 is an electric cylinder or a pneumatic cylinder.

[0095] What can be determined is that the clamping drive member 27 is arranged at the corresponding workstation, that is to say, there are actually at least five clamping drive members 27, which are respectively arranged at the first workstation, the second workstation, the third workstation, the fourth workstation and the fifth workstation, and are used to drive the rotary clamping mechanism 26 at the corresponding workstation to operate.

[0096] At the same time, for the clamping drive 27 to drive the rotary clamping mechanism 26 to operate, one clamping drive 27 can drive one rotary clamping mechanism 26 to operate, that is, ten rotary clamping mechanisms 26 need to be set up, or one clamping drive 27 can drive two rotary clamping mechanisms 26 to operate, that is, only five clamping drives 27 need to be set up.

[0097] In addition, it should be noted that the pressing driving member 27 can also be arranged on the rotating member 22. In this way, it is not necessary to ensure that the pressing driving member 27 is installed at a corresponding position on the frame 10 during installation.

[0098] In some embodiments, the clamping assembly also includes an adjusting member 267, which is connected to one end of the connecting column 263 away from the cantilever 264; the rotary clamping mechanism 26 also includes an elastic member 268, which is connected between the cam portion 262 and the adjusting member 267, and is used to provide an elastic force to move the adjusting member 267 away from the rotating member 22, thereby driving the connecting column 263 to move downward through the adjusting member 267.

[0099] In actual application, the adjusting member 267 is a nut, which is threadedly connected to the end of the connecting column 263 away from the cantilever 264. The elastic member 268 is a spring, which is sleeved on the connecting column 263, and one end of the spring abuts against the nut, and the other end abuts against the cam portion 262.

[0100] Specifically, the cam portion 262 is provided with an abutment portion, which is arranged on the inner wall of the mounting hole, and one end of the spring extends into the mounting hole and abuts against the abutment portion. Figure 2 For example, the connecting column 263 is pushed up along the first direction by pressing the driving member 27, and then the sheet to be processed on the carrying position is removed or the sheet to be processed is placed on the carrying position.

[0101] It should be noted that the connecting column 263 is passed through the mounting hole, but the cantilever 264 is connected to one end of the connecting column 263. Therefore, when the spring pushes the connecting column 263 to move downward, the clamping end moves from the avoidance position to the clamping position along a preset trajectory. If there is no sheet to be processed on the bearing position at this time, the cantilever 264 may abut against the connecting part 261, and the connecting column 263 stops moving; if there is a sheet to be processed on the bearing position at this time, the clamping end will press against the sheet to be processed, and the connecting column 263 will also stop moving.

[0102] Combination Figure 5 It should be further explained that the movement of the connecting column 263 can be restricted by the spiral groove 2622, so the movement stroke of the connecting column 263 is determined, that is, the up and down movement of the connecting column 263 is carried out within a certain range. When there is no sheet to be processed on the load-bearing position, the cantilever 264 may abut against the connecting part 261, or the connecting column 263 may stop moving downward before the cantilever 264 contacts the connecting part 261, so the cantilever 264 will not contact the connecting part 261.

[0103] In some embodiments, the positioning device 20 further includes a gasket, which is disposed on a side of the connecting portion 261 away from the cam portion 262 and is used to abut against the cantilever 264 when the cantilever 264 moves downward.

[0104] In some embodiments, the positioning device 20 includes at least two groups of positioning components 24 and at least four groups of rotating clamping mechanisms 26. At least two groups of positioning components 24 are arranged at intervals along the circumferential direction of the turntable, and each positioning component 24 is provided with a group of rotating clamping mechanisms 26 on opposite sides along the circumferential direction of the turntable.

[0105] In actual application, the number of the positioning components 24 is five, that is, forming the five bearing positions in the above embodiment, and the number of the corresponding rotating clamping mechanisms 26 is ten.

[0106] See also Figure 6 and Figure 7 In some embodiments, the positioning device 20 further includes a plurality of support assemblies 28, which are disposed on the frame 10 and between the frame 10 and the rotating member 22. The support assemblies 28 have a support end, which abuts against a side of the rotating member 22 facing the frame 10. In practical applications, the plurality of support assemblies 28 are arranged at intervals along the circumferential direction of the turntable.

[0107] In some embodiments, the support assembly 28 includes a mounting seat 282, an adjustment plate 284 and a rolling member 286. The mounting seat 282 is installed on the frame 10, the adjustment plate 284 is movably disposed on the mounting seat 282 along a first direction, and the rolling member 286 is disposed at the top of the adjustment plate 284. The top of the rolling member 286 is the above-mentioned support end, which is used to abut against the rotating member 22 to support the rotating member 22 when the rotating member 22 rotates, so that the rotation of the rotating member 22 is more stable. At the same time, the adjustment plate 284 is movable along the first direction, which also makes the height of the rolling member 286 adjustable to adapt to rotating members 22 of different heights.

[0108] In actual application, the support assembly 28 also includes an adjustment block 288 and a locking member 289. The adjustment block 288 is fixedly connected to the mounting seat 282, and there is a moving space between the adjustment block 288 and the mounting seat 282. The adjustment plate 284 partially moves in the moving space. The locking member 289 is passed through the adjustment block 288 and abuts against the adjustment plate 284 in the moving space.

[0109] Specifically, the locking member 289 is a bolt, so as to press and fix the adjustment plate 284 relative to the mounting seat 282 when necessary, or to loosen and move the adjustment plate 284.

[0110] See also Figure 8 In some embodiments, the first pasting device 40 includes a pasting frame 42, a first linear module 44, a second linear module 46 and a pasting mechanism 48. The pasting frame 42 is arranged on the frame 10 and is located at the second workstation. The first linear module 44 is longitudinally arranged on the pasting frame 42 along the second direction. The second linear module 46 is reciprocatably arranged on the first linear module 44 along the second direction. The pasting mechanism 48 is reciprocatably arranged on the second linear module 46 along a third direction that is angled with the second direction. During the movement of the pasting mechanism 48 along the second direction and the third direction, the pasting mechanism 48 can paste the sheet to be processed and the first patch on the carrying position 22 located at the second workstation.

[0111] Among them, the second direction and the third direction are Figure 8 The purpose of the pasting mechanism 48 reciprocating along the second direction and the third direction is to paste the tape on the sheet to be processed and the first patch in two directions, and the sheet to be processed and the first patch are located on the upper surface of the turntable, and the sheet to be processed and the first patch are in sheet shape, so the second direction and the third direction are both parallel to the upper surface of the turntable.

[0112] It should also be explained that the linear module is a module including a track and a driving member. Taking the first linear module 44 as an example, the first linear module 44 includes a track longitudinally arranged on the pasting frame 42 along the second direction and a driving member arranged on the pasting frame 42. The second linear module 46 is reciprocatably arranged on the track along the second direction, and the driving member is used to drive the second linear module 46 to reciprocate. At the same time, the driving member is also electrically connected to the controller. The controller controls the movement of the driving member, thereby controlling the first pasting device 40 to paste the sheet to be processed and the first patch.

[0113] Furthermore, the pasting mechanism 48 includes a rotating cylinder 482 and a tape assembly 484. The rotating cylinder 482 is reciprocatingly movable along a third direction on the second linear module 46, and the tape assembly 484 is arranged on the output shaft of the rotating cylinder 482 to rotate with the output shaft of the rotating cylinder 482 around an axis perpendicular to the upper surface of the turntable.

[0114] It needs to be explained that the tape assembly 484 outputs the tape along one direction. For example, when the tape assembly 484 moves along the second direction, the tape assembly 484 needs to output the tape along the second direction; and when the tape assembly 484 moves along the third direction, the tape assembly 484 needs to output the tape along the third direction, and the change of the output direction is achieved by rotating the cylinder 482.

[0115] In actual applications, the second direction and the third direction are perpendicular to each other, and in combination with the above embodiments, it can be seen that the first detection platform 121 cooperates with the first detection mechanism to ensure that the first grasping mechanism 30 places the sheet to be processed and the first patch at the accurate position of the supporting position 22. Therefore, in the supporting position 22 of the second workstation, the positions of the sheet to be processed and the first patch are fixed, that is, the moving path of the tape assembly 484 is unchanged, and the first linear module 44, the second linear module 46, the rotating cylinder 482 and the tape assembly 484 of the controller are electrically connected, and the tape assembly 484 can be moved along a fixed path through a fixed program.

[0116] At the same time, one end of the tape output by the tape assembly 484 can be close to or away from the sheet to be processed and the first sheet located at the support position 22, and the tape assembly 484 is an existing structure, so it will not be described in detail.

[0117] See also Fig. 9 In some embodiments, the flipping device 50 includes a support frame 51 and an adsorption mechanism 52. The adsorption mechanism 52 is reciprocatably disposed on the support frame 51 along a fourth direction, and the adsorption mechanism 52 has a first adsorption surface for adsorbing or releasing the workpiece.

[0118] See also Fig. 9 and Fig.10 Furthermore, the flipping device 50 also includes a first connecting component 53 and a material picking component 54. The first connecting component 53 is reciprocatably arranged on the support frame 51 along a fifth direction that is angled with the fourth direction. The material picking component 54 is rotatably connected to the first connecting component 53 around a rotation axis perpendicular to the fourth direction. The material picking component 54 has a second adsorption surface for adsorbing or releasing the workpiece, and the second adsorption surface can be parallel to the first adsorption surface during the rotation of the material picking component 54. The material picking component 54 has an alignment position and an avoidance position during the movement of the first connecting component 53 in the fifth direction.

[0119] When the picking member 54 is in the alignment position and the first adsorption surface is parallel to the second adsorption surface, the first adsorption surface may be aligned with the second adsorption surface in the fourth direction.

[0120] When the material picking member 54 is in the avoiding position, the adsorption mechanism 52 is staggered from the first connecting component 53 and the material picking member 54 in the fourth direction respectively.

[0121] Specifically, the fifth direction is perpendicular to the fourth direction, and the fourth direction is Fig.10 The up and down directions in the fifth direction are Fig.10 The left and right directions, and when the flipping device 50 is installed on the third station, the fourth direction is the direction perpendicular to the upper surface of the turntable.

[0122] When the flipping device 50 is placed on the third station, it is ensured that the first adsorption surface of the adsorption mechanism 52 can correspond to approach or move away from the bearing position 22 of the third station during the movement along the fourth direction, that is, the first adsorption surface is facing the bearing position 22.

[0123] There are two situations when the second adsorption surface is parallel to or even aligned with the first adsorption surface, namely, the second adsorption surface faces the first adsorption surface and the side of the material picking member 54 facing away from the second adsorption surface faces the first adsorption surface.

[0124] In this way, when the material picking member 54 moves along the fifth direction, there is a position far enough away from the adsorption mechanism 52, and at this position, the material picking member 54 can rotate in a circle, which is defined as the flipping position. First, the material picking member 54 is moved to the flipping position and the material picking member 54 is rotated to the first angle, at which time the second adsorption surface of the material picking member 54 is parallel to the first adsorption surface, and the side of the material picking member 54 away from the second adsorption surface is facing the first adsorption surface in the fourth direction, and then the material picking member 54 is moved along the fifth direction to between the adsorption mechanism 52 and the bearing position 22 located at the third station, and moved to a position where the second adsorption surface is aligned with the first adsorption surface, so that the second adsorption surface faces the workpiece located at the third station.

[0125] The second adsorption surface adsorbs the workpiece, then moves to the flip position along the fifth direction, and continues to rotate until it reaches the second angle. At this time, the second adsorption surface is parallel to the first adsorption surface again, and the second adsorption surface faces the first adsorption surface, and the workpiece on the second adsorption surface will also rotate accordingly. Next, the material picking part 54 continues to be moved along the fifth direction until the second adsorption surface is aligned with the first adsorption surface in the fourth direction again, and the second adsorption surface faces the first adsorption surface, and the workpiece is adsorbed on the second adsorption surface. If there is a certain distance between the second adsorption surface and the first adsorption surface at this time, the adsorption mechanism 52 can be moved in the fourth direction so that the first adsorption surface is close to the workpiece on the second adsorption surface, and the workpiece is adsorbed, and the second adsorption surface releases the workpiece at the same time.

[0126] Finally, the material picking member 54 is moved along the fifth direction to the avoidance position, and the adsorption mechanism 52 is moved along the fourth direction to put the workpiece adsorbed by the first adsorption surface back into the carrying position 22 located at the third station, so as to realize the flipping of the workpiece.

[0127] In combination with the above-mentioned embodiment, it is explained that when the second adsorption surface is parallel to the first adsorption surface, the material picking member 54 is first moved to the alignment position so that the second adsorption surface adsorbs the side of the sheet to be processed on which the first patch is attached, that is, the first side, and the second side of the sheet to be processed is exposed, and then the material picking member 54 is flipped 180 degrees at the flipping position, and the material picking member 54 is moved to the alignment position again, and then the distance between the first adsorption surface and the second adsorption surface is adjusted by moving the adsorption mechanism 52 along the fourth direction so that the first adsorption surface is close to the sheet to be processed on which the first patch is attached, and then the first adsorption surface adsorbs the second side of the sheet to be processed, the second adsorption surface releases the sheet to be processed and moves to the avoidance position, and the adsorption mechanism 52 moves along the fourth direction to put the sheet to be processed back to the supporting position 22, and the sheet to be processed put back to the supporting position 22 has been flipped, and the second side of the sheet to be processed is exposed.

[0128] At the same time, the material picking member 54 cannot move along the fourth direction, and the material picking member 54 needs to adsorb the workpiece located on the bearing position 22. Therefore, it is necessary to ensure that when the material picking member 54 rotates to the second adsorption surface parallel to the first adsorption surface but the side of the material picking member 54 facing away from the second adsorption surface is facing the first adsorption surface, the interval between the second adsorption surface and the bearing position 22 in the fourth direction is small, so as to ensure that the second adsorption surface can adsorb the workpiece when it moves above the workpiece. The bearing position 22 is a position on the upper side surface of the turntable. The interval between the second adsorption surface and the bearing position 22 is small, that is, the spacing between the second adsorption surface and the upper side surface of the turntable is small. The material picking member 54 cannot rotate in a circle when it is close to the turntable. Therefore, the material picking member 54 can only be moved to the flipping position first to ensure that the material picking member 54 flips.

[0129] See also Fig. 9 and Fig.10 In some embodiments, the adsorption mechanism 52 includes a first connecting member 522 and an adsorption member 524. The first connecting member 522 is reciprocatably disposed on the support frame 51 along the fourth direction. The adsorption member 524 is connected to the first connecting member 522. The adsorption member 524 has a first adsorption surface, and the first adsorption surface is located on the side of the adsorption member 524 away from the first connecting member 522.

[0130] Furthermore, the flipping device 50 further includes a first telescopic driving member 55, which is disposed on the support frame 51, and the telescopic end of the first telescopic driving member 55 is connected to the side of the adsorption member 524 connected to the first connecting member 522, so as to drive the adsorption member 524 to move along the fourth direction. Of course, in other embodiments, the telescopic end of the first telescopic driving member 55 can be directly connected to the first connecting member 522 to indirectly drive the adsorption member 524 to move along the fourth direction.

[0131] In actual applications, the support frame 51 has a processing space, the adsorption component 524 is arranged in the processing space, the first connecting member 522 includes at least two first guide rods, one end of the at least two first guide rods is connected to one side of the adsorption component 524, and the other end extends along the fourth direction to pass through the top of the support frame 51, and the first telescopic driving member 55 is arranged at the top of the support frame 51.

[0132] Specifically, the first telescopic driving member 55 is a cylinder, and the number of first guide rods is four, which are divided into two groups. The two first guide rods in the same group pass through one end of the support frame 51 and are connected by a connecting rod, and the connecting rod cannot pass through the top of the support frame 51, so that the first guide rod can guide the movement of the adsorption member 524 along the fourth direction while the connecting rod can also limit the movement of the adsorption member 524.

[0133] Of course, in some embodiments, the adsorption member 524 can be driven to move along the fourth direction by directly connecting the adsorption member 524 through the first telescopic driving member 55 alone without setting the first connecting member 522. However, in this way, there is a lack of guidance, which may cause a deviation in the position of the workpiece before and after flipping. Therefore, it is preferred to set the first connecting member 522 to achieve the movement of the adsorption member 524 along the fourth direction.

[0134] In some embodiments, the support frame 51 is provided with a guide portion extending along the fifth direction, and the first connecting assembly 53 includes a second connecting member 532, a first connecting plate 534, and a second guide rod 536. The second connecting member 532 is reciprocatably disposed on the guide portion along the fifth direction, one side of the first connecting plate 534 is fixedly connected to the second connecting member 532, one end of the second guide rod 536 is connected to a side of the first connecting plate 534 away from the second connecting member 532, and the second guide rod 536 extends in the fourth direction in a direction away from the first connecting plate 534, and the material picking member 54 is connected to the second guide rod 536 to move along the fifth direction with the second guide rod 536.

[0135] It can be understood that the cooperation between the second connecting member 532 and the guide portion is similar to the cooperation of the track, and the specific implementation is not limited.

[0136] Furthermore, the first connecting component 53 also includes a connecting block, which is connected to one side of the first connecting plate 534 connected to the second connecting member 532. The flipping device 50 also includes a second telescopic driving member 56 arranged on the support frame 51, and the connecting block is connected to one side of the first connecting plate 534. The telescopic end of the second telescopic driving member 56 is connected to the connecting block, which is used to drive the connecting block to move along the fifth direction, thereby driving the first connecting plate 534 to move on the guide portion along the fifth direction.

[0137] In some embodiments, the flipping device 50 further includes a second connecting component 57, which is reciprocatably disposed on the first connecting component 53 along the fourth direction, and the material picking component 54 is rotatably connected to the second connecting component 57 around the rotation axis. Further, the second connecting component 57 is reciprocatably disposed on the second guide rod 536 along the fourth direction, and the material picking component 54 is connected to the second connecting component 57.

[0138] It should be noted that, when the second connecting component 57 is provided, the material picking member 54 can be moved in the fifth direction and the fourth direction to be away from the turntable, so as to realize the unimpeded rotation of the material picking member 54 and realize the flipping of the workpiece 180 degrees. Moreover, if the second connecting component 57 is provided, the action of the adsorption mechanism 52 can be only to put the flipped workpiece back to the bearing position 22, so the adsorption mechanism 52 can be set to move back and forth between two positions, one is a position away from the bearing position 22, and the other is a position close to the bearing position 22 to place the workpiece on the first adsorption surface at the bearing position 22, which can simplify the control program and facilitate operation. The corresponding material picking member 54 needs to ensure flipping, and move to two positions corresponding to the adsorption mechanism 52 and the bearing position 22, so as to adsorb the workpiece of the bearing position 22 and flip the workpiece, and then move the flipped workpiece to the adsorption mechanism 52.

[0139] At the same time, when the material picking member 54 is movable along the fourth direction and when the adsorption mechanism 52 moves in a direction away from the carrying position 22 until the distance between the adsorption mechanism 52 and the carrying position 22 is maximum, if at this time the distance between the adsorption mechanism 52 and the carrying position 22 is large enough to allow the material picking member 54 to rotate in a circle between the adsorption mechanism and the carrying position 22, then the material picking member 54 can also directly move along the fourth direction after adsorbing the workpiece and then flip over, without having to move away from the adsorption mechanism 52 and the turntable in the fifth direction.

[0140] In addition, the space for ensuring the rotation of the material picking member 54 is to avoid interference with the rotation of the material picking member 54 by other structures, and when the corresponding material picking member 54 is in the avoidance position, it is to avoid interference with the movement of the adsorption mechanism 52 along the fourth direction. The movement of the material picking member 54 is actually achieved through the first connecting component 53 or the first connecting component 53 and the second connecting component 57, that is, when the material picking member 54 is in the avoidance position, the first connecting component 53 and even the second connecting component 57 will not interfere with the movement of the adsorption mechanism 52 along the fourth direction.

[0141] The movement of the material picking member 54 in the fourth direction is achieved by setting the second connecting component 57. When the workpiece is turned over and the second adsorption surface is moved to a position aligned with the first adsorption surface in the fourth direction, if there is a gap between the first adsorption surface and the second adsorption surface in the fourth direction at this time, the workpiece adsorbed on the second adsorption surface can be moved close to the first adsorption surface by moving the material picking member 54 in the fourth direction, that is, the above-mentioned adsorption mechanism 52 can only move between two positions.

[0142] Of course, in another embodiment, after the material picking part 54 is flipped over, the first adsorption surface and the second adsorption surface are aligned in the fourth direction. If there is a gap between the first adsorption surface and the second adsorption surface in the fourth direction at this time, the first adsorption surface can be moved close to the workpiece adsorbed on the second adsorption surface by moving the adsorption mechanism 52 in the fourth direction. There is no need to continue moving the material picking part 54. After the adsorption mechanism 52 adsorbs the workpiece, the material picking machine 54 can be moved to the avoidance position, and the adsorption mechanism 52 directly moves down to the carrying position 22 to release the workpiece.

[0143] In some embodiments, the second connecting component 57 includes a second connecting plate 572 and a third connecting plate 574. The second connecting plate 572 is reciprocatably disposed on the first connecting component 53 along the fourth direction. The third connecting plate 574 is disposed at an angle to the second connecting plate 572. The material picking component 54 is rotatably disposed on one side of the third connecting plate 574 around a rotation axis.

[0144] Furthermore, the second connecting component 57 also includes a linear bearing, which is arranged on the second connecting plate 572 along the fourth direction, and the second guide rod 536 is passed through the linear bearing along the fourth direction, so that the second connecting plate 572 can be reciprocated and moved on the second guide rod 536 along the fourth direction.

[0145] Specifically, there are four second guide rods 536 , and the corresponding linear bearings are four, so as to ensure that the second connecting plate 572 moves accurately along the fourth direction, and further ensure that the material picking member 54 moves accurately along the fourth direction.

[0146] In some embodiments, the flipping device 50 also includes a third telescopic driving member 58, which is arranged on one side of the first connecting plate 534 connected to the second guide rod 536, and the telescopic end of the third telescopic driving member 58 is connected to the second connecting plate 572, for driving the second connecting plate 572 to move in the fourth direction.

[0147] In actual application, the second connecting component 57 is similar to being hoisted on one side of the first connecting plate 534 , and the second guide rod 536 guides the movement of the second connecting component 57 .

[0148] In some embodiments, the second connecting plate 572 has a U-shaped notch, and the third connecting plate 574 is connected to the second connecting plate 572 at an angle at the U-shaped notch of the second connecting plate 572, that is, the third connecting plate 574 is a U-shaped plate, and the material picking member 54 is rotatably connected to the third connecting plate 574 and is located in the middle of the U-shaped notch or the U-shaped plate.

[0149] In some embodiments, the flipping device 50 also includes a flipping mechanism, which includes a rotating drive member 591, a driving wheel 592, a synchronous belt 593 and a synchronous pulley 594. The rotating drive member 591, the driving wheel 592 and the synchronous pulley 594 are all arranged in the second connecting component 57. The synchronous belt 593 is transmission-connected between the rotating drive member 591 and the synchronous pulley 594 to drive the synchronous pulley 594 to rotate around the rotation axis. The material picking member 54 is connected to the synchronous pulley 594.

[0150] Furthermore, the flipping mechanism also includes a driven wheel, and the synchronous pulley 594 and the driven wheel are both rotatably arranged on the third connecting plate 574 around the rotation axis, and are respectively located on the opposite sides of the U-shaped structure, and the opposite sides of the material picking member 54 located between the U-shaped structures are respectively connected to the synchronous pulley 594 and the driven wheel to drive the material picking member 54 to rotate around the rotation axis.

[0151] In actual applications, the flipping mechanism also includes a tensioning wheel 595, which is reciprocatably arranged on the third connecting plate 574 and is located between the synchronous pulley 594 and the driving wheel 592. The synchronous belt 593 is wound around the tensioning wheel 595. The movement of the tensioning wheel 595 can adjust the tension of the synchronous belt 593, thereby preventing the synchronous belt 593 from slipping.

[0152] Specifically, the rotation driving member 591 is a servo motor.

[0153] In some embodiments, the flipping device 50 also includes a first detection mechanism, and the first detection mechanism and the rotating drive member 591 are both electrically connected to the controller. The first detection mechanism is used to detect the driven rotation angle of the synchronous pulley 594, and the controller controls the movement of the rotating drive member 591 according to the driven rotation angle.

[0154] The material picking member 54 is directly connected to the synchronous pulley 594, and the rotation angle of the synchronous pulley 594 is the rotation angle of the material picking member 54. Therefore, the controller can control the rotation angle of the material picking member 54 according to the driven rotation angle of the synchronous pulley 594 to realize the flipping of the workpiece.

[0155] Furthermore, the radial dimension of the driving wheel 592 is the same as the radial dimension of the synchronous pulley 594. The flipping mechanism also includes a second detection mechanism and an adjuster. The second detection mechanism and the adjuster are electrically connected to the controller. The second detection mechanism is used to detect the active rotation angle of the driving wheel 592. The adjuster is used to control the movement of the tensioning wheel 595. The controller controls the action of the adjuster according to the active rotation angle and the synchronous rotation angle, thereby tightening the synchronous belt 593.

[0156] Since the radial size of the driving wheel 592 is the same as the radial size of the synchronous pulley 594, when the synchronous belt 593 is stably transmitted, that is, when the synchronous belt 593 does not slip, the active rotation angle and the synchronous rotation angle are the same. If the angles measured by the two detection mechanisms are different, it means that the synchronous belt 593 is slipping, and the controller controls the regulator to adjust the tensioning roller to tension the synchronous belt 593.

[0157] It should be explained that the synchronous pulley 594 and the driven pulley can be rotatably arranged on the third connecting plate 574, which can be achieved by a rotating shaft and a bearing. The implementation method is relatively conventional and will not be elaborated here.

[0158] In addition, the radial size of the driving wheel 592 and the radial size of the synchronous pulley 594 may also be different, but the difference between the active rotation angle and the synchronous rotation angle must be determined, that is, the operational relationship between the active rotation angle and the synchronous rotation angle under normal circumstances. After the controller obtains the active rotation angle and the synchronous rotation angle, it determines whether the connection meets the preset operational relationship. If it does, it means that the operation is normal. If it does not, it means that the synchronous belt 593 is slipping.

[0159] In some embodiments, the material picking component 54 and the adsorption component 524 are both suction cups, and the corresponding flipping device 50 is also provided with a negative pressure device and a connecting pipe. The negative pressure device is electrically connected to the controller and is respectively connected to the material picking component 54 and the adsorption component 524 through the connecting pipe to generate negative pressure, thereby adsorbing the workpiece.

[0160] In other embodiments, the first connecting component 53 may be rotatably disposed on the support frame 51 around a rotation axis parallel to the fourth direction, and the material picking member 54 has an alignment position and an avoidance position during the rotation of the first connecting component 53. In these embodiments, other structures of the flipping device 50 remain unchanged, except that the first connecting component 53 realizes the alignment position and the avoidance position of the material picking member 54 by rotation. Those skilled in the art may design the structure according to the implementation method, which will not be elaborated here.

[0161] In some embodiments, the second pasting device 70 has the same structure and function as the first pasting device 40 , and the only difference is that they are located at different workstations, so they will not be described in detail.

[0162] See also Fig.11 In some embodiments, the preparation system also includes a molding device 81 arranged on the frame 10, and the molding device 81 is located on one side of the rotating member 22. The first grasping mechanism 30 is used to transport the sheet to be processed with the first patch and the second patch pasted to the molding device 81, and the molding device 81 is used to post-process the sheet to be processed with the first patch and the second patch pasted in sequence to form a membrane electrode.

[0163] It should be noted that the molding device 81 is a conventional device for processing a sheet to be processed with patches pasted on both sides, including a molding frame 811, a vacuum platform 812, a third linear module 813, a fourth linear module 814 and a processing mechanism. The third linear module 813 is arranged on the top of the molding frame 811, the fourth linear module 814 is arranged on the frame 811, and the processing mechanism is reciprocatingly arranged on the third linear module 813 along the sixth direction, and the vacuum platform 812 is reciprocatingly arranged on the fourth linear module 814 along the seventh direction. The vacuum platform 812 is used to adsorb and fix the workpiece, and the vacuum platform 812 moves to the processing position along the seventh direction, and then the processing mechanism processes the workpiece on the vacuum platform 812 at the processing position during the movement along the sixth direction.

[0164] Specifically, the sixth direction is Fig.11 The left and right directions shown, the seventh direction is Fig.11 The processing mechanism includes a laser 815, a code sprayer 816 and a code scanner 817, which are used to cut, spray and scan the workpiece respectively. At the same time, the molding device 81 also includes a waste brush 818 and a waste box 819, etc., which are used to automatically process and collect waste.

[0165] See also Figure 1 In some embodiments, a transfer platform 125 is further provided on the frame 10, and the transfer platform 125 is used to place the sheet to be processed with patches pasted on both sides. In practical applications, by adopting the method of processing at five stations at the same time, the efficiency of pasting patches on both sides of the sheet to be processed is higher. It may be that the processing speed of the molding device 81 cannot keep up with the pasting speed. Therefore, the transfer platform 125 is set, and the first grasping mechanism 30 grasps the sheet to be processed with pasted patches from the pasting at the fifth station, and then places it on the transfer platform 125. After the molding device 81 completes the processing, the workpiece on the transfer platform 125 is transferred to the molding device 81.

[0166] See also Fig.12 In some embodiments, the preparation system further includes an impedance detection device 82 disposed on the frame 10, the impedance detection device 82 is located on the downstream side of the molding device 81, and the impedance detection device 82 is used to detect the impedance of the membrane electrode.

[0167] Further, the impedance detection device 82 includes an impedance tester 821, a downward pressure cylinder 822, an upper pressure plate 823, a lower pressure plate 824, a first transverse driving member 824 and a first linear guide 826. The membrane electrode is placed on the lower pressure plate 824. Under the action of the first transverse driving member 824 and the first linear guide 826, the lower pressure plate 824 moves to the bottom of the upper pressure plate 823. The downward pressure cylinder 822 presses the upper pressure plate 823 downward to make the upper pressure plate 823 and the lower pressure plate 824 pressed tightly together. The impedance tester is used to measure the impedance of the membrane electrode when the upper and lower pressure plates are pressed tightly together. Specifically, the first transverse driving member 824 is a cylinder, an electric cylinder, a ball screw, etc., which is not limited in this embodiment.

[0168] See also Fig.13 In some embodiments, the preparation system further includes an airtightness detection device 83 disposed on the frame 10, the airtightness detection device 83 is located on the downstream side of the molding device 81, and the airtightness detection device 83 is used to detect the airtightness of the membrane electrode.

[0169] Furthermore, the airtightness detection device 83 includes a gas-liquid booster cylinder 831, a pressure sensor 832, an upper seal 833, a lower seal 834, a second transverse drive 835, and a second linear guide 836. The membrane electrode is placed on the lower seal 834. Under the action of the second transverse drive 835 and the second linear guide 836, the lower seal 834 moves to the bottom of the upper seal 833. Under the action of the gas-liquid booster cylinder 831 and the pressure sensor 832, the upper and lower seals are pressed and fitted to form a sealed cavity. The membrane electrode is located in the sealed cavity. Finally, the airtightness of the membrane electrode is detected through the airtightness detection circuit. Specifically, the second transverse drive 835 is a cylinder, an electric cylinder, a ball screw, etc., which is not limited in this embodiment.

[0170] It is understandable that the impedance detection device 82 and the airtightness detection device 83 are conventional detection devices, so they are not described in detail. Moreover, the impedance detection device 82 and the airtightness detection device 83 can be set correspondingly, that is, the impedance detection device 82 can be located at the downstream side of the airtightness detection device 83, or the airtightness detection device 83 can be located at the downstream side of the impedance detection device 82, as long as both are located at the downstream side of the molding device 81.

[0171] In some embodiments, the preparation system also includes a material moving device 84 arranged on the frame 10, and the material moving device 84 is connected to the molding device 81, the impedance detection device 82 and the airtightness detection device 83, and is used to transfer the membrane electrode between the molding device 81, the impedance detection device 82 and the airtightness detection device 83.

[0172] Furthermore, the material transfer device 84 includes a slide rail 842 arranged on the frame 10 longitudinally along the seventh direction and a third grasping mechanism 844 reciprocatably arranged on the slide rail 842 along the seventh direction. The rotating member 22 and the slide rail 842 are spaced apart along the seventh direction, and the molding device 81, the impedance detection device 82 and the airtightness detection device 83 are arranged on one side of the slide rail 842 in sequence along the seventh direction with the position close to the rotating member 22 as the starting point. When the third grasping mechanism 844 moves along the slide rail 842, the membrane electrode can be transferred from the molding device 81 to the impedance detection device 82 and the airtightness detection device 83 or the airtightness detection device 83 and the impedance detection device 82 in sequence.

[0173] In actual application, the third grabbing mechanism 844 is driven by a material transfer cylinder, and the third grabbing mechanism 844, the first grabbing mechanism 30 and the second grabbing mechanism 60 are all industrial manipulators. At the same time, it can be known that the above-mentioned molding equipment 81, impedance detection equipment 82, air tightness detection equipment 83, material transfer cylinder and the third grabbing mechanism 844 are all electrically connected to the controller to realize automatic operation.

[0174] In some embodiments, there are two impedance detection devices 82, which are correspondingly arranged on two opposite sides of the slide rail 842, and the airtightness detection devices 83 are divided into two groups, each group consisting of two. The two groups of airtightness detection devices 83 are correspondingly arranged on two opposite sides of the slide rail 842, and the two airtightness detection devices 83 in each group are arranged at intervals along the seventh direction, and are also arranged at intervals along the seventh direction at the same time as the impedance detection devices 82.

[0175] It is understandable that the speeds at which the above-mentioned different devices process workpieces are different, so the number of devices can be set according to the processing speed to improve the processing efficiency.

[0176] In some embodiments, the preparation system also includes a finished material frame 92 arranged on the frame 10, and the finished material frame 92 is arranged adjacent to the airtightness detection equipment 83. Since the airtightness detection equipment 83 is arranged on both sides of the slide rail 842, the finished material frame 92 can also be regarded as being arranged adjacent to the slide rail 842, so as to facilitate the third grasping mechanism 844 to transfer the membrane electrode that has passed the airtightness detection to the finished material frame 92.

[0177] In some embodiments, the preparation system further includes a waste material frame 94 disposed on the frame 10, and the waste material frame 94 is used to collect the membrane electrode that fails the test. The controller is electrically connected to each device respectively, and the unqualified membrane electrode detected by the impedance detection device 82 and the airtightness detection device 83 can be transported to the waste material frame 94 through the third grabbing mechanism 844. Of course, in actual applications, the number of finished material frames 92 is usually more than the number of waste material frames 94.

[0178] In order to facilitate understanding of the technical solution of the present invention, the preparation process of the preparation system is described here:

[0179] The operator places the sheet to be processed and the first patch in the corresponding sheet material frame 124 and the first patch material frame 122. The first grasping mechanism 30 grasps the sheet to be processed and the first patch in turn and stacks them on the carrying position 22 located at the first workstation. During the transportation of the sheet to be processed and the first patch, they will first be placed on the first detection platform 121 to cooperate with the first detection mechanism for detection, and then re-grabbed and placed on the carrying position 22.

[0180] The turntable rotates by a preset angle, and the sheet to be processed and the patch enter the second station and are pasted by the first pasting device 40, and then continues to rotate by a preset angle, and the sheet to be processed and the patch with the pasting number are flipped over by the flipping device 50 to expose the other side of the sheet to be processed, and continues to rotate by a preset angle, and the second grasping mechanism 60 stacks the second patch on the sheet to be processed at the fourth station, and the second grasping mechanism 60 passes through the second detection platform 123 on the way of transporting the second patch, and the second detection platform 123 cooperates with the second detection mechanism to realize that the second patch is accurately stacked on the sheet to be processed, and then continues to rotate by a preset angle and enters the fifth station, and the second pasting device 70 pastes the second patch on the other side of the sheet to be processed, so that patches are pasted on both sides of the sheet to be processed.

[0181] The first grabbing mechanism 30 transfers the sheet to be processed with patches on both sides to the molding equipment 81 for processing to generate a membrane electrode. The generated membrane electrode passes through the third grabbing mechanism 844 and enters the impedance detection equipment 82 and the airtightness detection equipment 83 in turn to perform impedance detection and airtightness detection in turn. Finally, the third grabbing mechanism 844 transfers the qualified membrane electrode to the finished product material frame 92, and transfers the unqualified membrane electrode to the waste material frame 94.

[0182] Among them, each device can be electrically connected to the controller to achieve full automatic control.

[0183] Compared with the prior art, the system for preparing a membrane electrode provided by the present invention has at least the following advantages:

[0184] 1) The flipping device automatically flips the sheet to be processed, so that the patch can be automatically attached to both sides of the sheet to be processed, with high efficiency and high attachment accuracy;

[0185] 2) The entire preparation process is carried out automatically, further improving efficiency.

[0186] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0187] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A turning device, characterized in that: The flipping device is arranged on a frame and comprises: Support frame; An adsorption mechanism is disposed on the support frame so as to be reciprocatable along a third direction and has a first adsorption surface for adsorbing or releasing the workpiece; A first connecting component is disposed on the support frame so as to be reciprocatably movable along a fourth direction which is angled with the third direction; and A pick-up member is rotatably connected to the first connecting assembly around a rotation axis perpendicular to the third direction, the pick-up member has a second adsorption surface for adsorbing or releasing the workpiece, and the second adsorption surface can be parallel to the first adsorption surface during the rotation of the pick-up member around the rotation axis, and the pick-up member has an alignment position and an avoidance position during the movement of the first connecting assembly in the fourth direction; When the material picking member is in the alignment position and the first adsorption surface is parallel to the second adsorption surface, the first adsorption surface can be aligned with the second adsorption surface in the third direction; When the material picking member is in the avoidance position, the adsorption mechanism is staggered with the first connecting component and the material picking member in the third direction respectively; Wherein, the flipping device further comprises a second connecting component, the second connecting component is reciprocally movably arranged on the first connecting component along the third direction, and the material picking member is rotatably connected to the second connecting component around the rotation axis; The fourth direction is perpendicular to the third direction; The support frame is provided with a guide portion extending along the fourth direction; The first connecting assembly includes a first connecting plate, a connecting block and a second guide rod; The first connecting plate is disposed on the guide portion so as to be reciprocatably movable along the fourth direction; The flipping device further includes a second telescopic driving member disposed on the support frame, the connecting block is connected to one side of the first connecting plate, and a telescopic end of the second telescopic driving member is connected to the connecting block, for driving the connecting block to reciprocate along the fourth direction; One end of the second guide rod is connected to the side of the first connecting plate away from the connecting block, and the second guide rod extends along the third direction away from the first connecting plate, and the second connecting component is reciprocatingly disposed on the second guide rod in the third direction.

2. The flipping device according to claim 1, characterized in that: The adsorption mechanism includes a first connecting member and an adsorption member, the first connecting member is reciprocatably arranged on the support frame along the third direction, the adsorption member is connected to the first connecting member, the adsorption member has the first adsorption surface, and the first adsorption surface is located on the side of the adsorption member away from the first connecting member.

3. The flipping device according to claim 2, characterized in that: The flipping device also includes a first telescopic driving member, which is arranged on the supporting frame, and the telescopic end of the first telescopic driving member is connected to the side of the adsorption member connected to the first connecting member, which is used to drive the adsorption member to reciprocate along the third direction.

4. The flipping device according to claim 1, characterized in that: The second connecting component includes a second connecting plate and a third connecting plate. The second connecting plate is movably arranged on the first connecting component along the third direction. The third connecting plate is arranged at an angle to the second connecting plate. The material picking piece is rotatably arranged on one side of the third connecting plate around the rotation axis.

5. The flipping device according to claim 1, characterized in that: The flipping device further comprises a flipping mechanism, which comprises a rotating driving member, a driving wheel, a synchronous belt and a synchronous pulley, wherein the rotating driving member, the driving wheel and the synchronous pulley are all arranged on the second connecting assembly, and the radial dimension of the driving wheel is the same as the radial dimension of the synchronous pulley; The synchronous belt transmission is connected between the rotating driving member and the synchronous belt pulley to drive the synchronous belt pulley to rotate around the rotating axis, and the material picking member is connected to the synchronous belt pulley.

6. The turning device according to claim 5, characterized in that: The flipping device also includes a controller and a first detection mechanism, the controller is electrically connected to the rotating drive member and the first detection mechanism respectively, the first detection mechanism is used to detect the driven rotation angle of the synchronous pulley, and the controller is used to control the action of the rotating drive member according to the driven rotation angle.

7. A system for preparing a membrane electrode, characterized in that: The preparation system comprises the turning device as described in any one of claims 1-6.

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