Table type bipolar plate laminating MEA automatic equipment for single battery production

Abstract

The invention relates to the field of hydrogen battery production equipment, in particular to automatic equipment for attaching a rotary table type bipolar plate to MEA in single battery production, a rotary table device comprises a rotary table bedplate capable of being driven by a servo to rotate in a stepping mode, and the top surface of the rotary table bedplate is provided with four working stations; the four working stations are arranged in an annular array mode with the rotating center of the rotary table platen as the center. The number of the pushing and positioning suction plate tools is four, each pushing and positioning suction plate tool is installed on the four working positions, the dispensing mechanism and the UV glue curing mechanism are arranged on the rotary table device, and the execution effect ends of the dispensing mechanism and the UV glue curing mechanism face the rotary table platen. The rotary table device can drive the rotary table platen to rotate so that the pushing and positioning suction plate tools can move between the dispensing mechanism and the UV glue curing mechanism one by one. Due to the design of the rotary table of the equipment, high-precision rapid circulation of workpieces is achieved, all procedures can be carried out at the same time and do not interfere with one another, and the overall production takt is greatly shortened.

Description

Technical Field

[0001] The invention relates to the field of hydrogen battery production equipment, in particular to a transfer table type bipolar plate laminating MEA automated equipment used in single battery production. Background Art

[0002] A single cell is the core component of a hydrogen fuel cell stack. A single cell is mainly composed of a bipolar plate and an MEA membrane electrode. The entire process can be divided into five steps: bipolar plate loading, UV glue application on the bipolar plate, MEA loading and lamination, compaction and curing of the lamination position, and single cell unloading. Previously, these processes were mainly manually produced with the help of tooling or by connecting the various workstations in series in the form of an assembly line. The overall number of pallet jigs required would be relatively large, and the space occupied would be relatively large. In addition, the product would be transported multiple times, which could not guarantee the required lamination accuracy and was inefficient, and could not meet the quality and market supply requirements. Summary of the invention

[0003] In order to solve the above problems, a turntable-type bipolar plate bonding MEA automation equipment is developed for single-cell production. The design of the turntable of the equipment not only realizes the high-precision and rapid flow of workpieces, but also enables each process to be carried out simultaneously without interfering with each other, greatly shortening the overall production cycle.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] An automated equipment for attaching MEA to a transfer table bipolar plate in single cell production, comprising:

[0006] A turntable device, comprising a turntable platen capable of being servo-driven and step-rotated, wherein the top surface of the turntable platen has four working positions, and the four working positions are arranged in a circular array with the rotation center of the turntable platen as the center;

[0007] Push-to-position suction plate tooling, the push-to-position suction plate tooling has 4 groups, and each group of push-to-position suction plate tooling is installed on four working positions respectively;

[0008] The glue dispensing mechanism and the UV glue curing mechanism are arranged on the turntable device, and the execution effect ends of the glue dispensing mechanism and the UV glue curing mechanism face the turntable plate;

[0009] The turntable device can drive the turntable plate to rotate, so that the pushing and positioning suction plate tooling moves one by one between the glue dispensing mechanism and the UV glue curing mechanism.

[0010] Preferably, the glue dispensing mechanism and the UV glue curing mechanism are arranged on opposite sides of the turntable device.

[0011] Preferably, the turntable device also includes a loading and unloading station and a MEA loading and laminating station.

[0012] Preferably, the dispensing mechanism is a three-axis dispensing mechanism.

[0013] Preferably, the axis of the turntable plate is vertically hollowed out, and a pneumatic slip ring is installed at the axis of the turntable plate.

[0014] Preferably, the transmission device of the turntable device includes a cam divider for precise transmission.

[0015] Preferably, the push-to-position suction plate tooling comprises a supporting plate whose main extension surface is a rectangle, a fixed right-angle positioning foundation is arranged at the first corner of the supporting plate, and a fixed positioning foundation is arranged opposite to the fixed right-angle positioning foundation in the length direction;

[0016] Pneumatic pushing and clamping devices are arranged at both ends of the second length side of the supporting plate and at the angle of the fixed positioning base.

[0017] Preferably, the supporting plate is a vacuum suction plate with controllable adsorption.

[0018] The beneficial effects of using the present invention are:

[0019] This is an automated equipment for transferring bipolar plates and bonding MEA in the production of single cells. It ensures the production accuracy of single cells while improving production efficiency. The bipolar plate loading and unloading stations and the MEA membrane electrode loading and bonding stations can be used with robots to achieve full automation to liberate labor. The overall structure is simple and compact, with low machining and assembly requirements, cost savings, and a clean and pollution-free overall structure, which effectively protects the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the axial side of the transfer table bipolar plate bonding MEA automated equipment used in single cell production.

[0021] Figure 2 A top view of the MEA automated equipment used for transferring bipolar plates to the production of single cells.

[0022] Figure 3 It is a structural schematic diagram of the push-pull positioning suction plate tooling.

[0023] Reference numerals include:

[0024] 1- Equipment frame, 2- Turntable device, 3- Push-to-position suction plate fixture, 4- Three-axis glue dispensing mechanism, 5- UV glue curing mechanism, 6- Pneumatic and electric slip ring;

[0025] 31-right angle positioning base, 32-pneumatic push-and-clamp device, 33-bipolar plate, 34-vacuum suction plate, 35-MEA membrane electrode. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the technical solution more clear, the technical solution is further described in detail below in conjunction with specific implementation methods. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the technical solution.

[0027] In order to solve the problem of low accuracy and efficiency of laminating the bipolar plate 33 to the MEA membrane electrode 35 in the prior art, the manual production with the aid of tooling or the production method in the form of an assembly line is as follows: Figure 1 As shown, this embodiment proposes a turntable type bipolar plate bonding MEA automation equipment for single cell production. The main supporting structure of this equipment is the equipment frame 1. The function of the equipment frame 1 is to unify the reference and fix all the parts used for production to ensure its stability during normal operation. The equipment frame 1 adopts steel beams to form a frame structure, and adjustable height legs are installed at the four corners of the bottom of the frame structure. A turntable device 2 is arranged in the middle of the top surface of the equipment frame 1. The function of the turntable device 2 is to rotate 90 degrees in one direction with high precision each time for circulation. The turntable device 2 has four sets of push-to-position and suction plate tooling 3. The four sets of push-to-position and suction plate tooling 3 can be rotated to four stations in sequence through the rotation of the turntable device 2.

[0028] In this embodiment, the turntable device 2 includes a turntable plate that can be driven by a servo to rotate step by step, Figure 2 As shown, the turntable bipolar plate bonding MEA automation equipment for single cell production in this embodiment has four stations, namely, the loading and unloading station at 12 o'clock, the three-axis glue dispensing station at 9 o'clock, the MEA membrane electrode 35 loading and bonding station at 6 o'clock, and the UV glue curing station at 3 o'clock. The design of the turntable device 2 not only realizes the high-precision and fast flow of workpieces, but also enables each process to be carried out simultaneously without interfering with each other, greatly shortening the overall production cycle.

[0029] The function of the three-axis dispensing mechanism 4 is to evenly dispense UV glue on the bipolar plate 33 fixed by the push-pull positioning suction plate fixture 3 through the three-axis fixed glue valve according to a certain trajectory. It is equipped with a visual system, which determines the positioning starting point of the dispensing trajectory by taking a photo of the diagonal identification MARK point of the incoming bipolar plate 33. The design of the three-axis dispensing mechanism 4 meets the requirements of high precision and high speed of dispensing. It is equipped with a visual system, which determines the positioning starting point of the dispensing trajectory by taking a photo of the diagonal identification MARK point of the incoming bipolar plate 33 to ensure its dispensing accuracy.

[0030] The function of the UV glue curing mechanism 5 is to flatten the MEA membrane electrode 35 which has been bonded to the bipolar plate 33 after the glue is applied in the previous process with a high-strength glass plate, and to irradiate the bonding glue line with ultraviolet light of a specific wavelength to solidify it, thereby firmly bonding the MEA membrane electrode 35 and the bipolar plate 33 together. The design of the UV glue curing mechanism 5 comprehensively utilizes the high light transmittance, high strength, high flatness, and smooth and easy-to-process characteristics of tempered glass to flatten and solidify the UV glue after bonding, thereby greatly improving the production qualification rate of single cells.

[0031] The axis of the turntable plate is vertically hollowed out, and a gas-electric slip ring 6 is installed at the axis of the turntable plate. The function of the gas-electric slip ring 6 is to provide compressed air and power supply for all cylinders, suction plates, control modules, etc. on the turntable. Since the turntable and all the components fixed thereon are operated together with the turntable, and the power supply and air supply position of the equipment are fixed, the gas-electric slip ring 6 is used to solve the problem of power supply and air supply in this type of rotation.

[0032] Preferably, the transmission device of the turntable device 2 includes a cam divider for precise transmission. The power input end of the cam divider is a servo motor for precise movement, and the output end of the cam divider is connected to the turntable plate of the turntable device 2. The cam divider can realize the power transmission of the turntable device 2 and ensure the rotation accuracy of the turntable device 2.

[0033] like Figure 2 As shown, the top surface of the turntable plate has four working positions, and the four working positions are arranged in a circular array with the rotation center of the turntable plate as the center; the push-pull positioning suction plate tooling 3 has 4 groups, and each group of the push-pull positioning suction plate tooling 3 is installed on the four working positions. Figure 3 The function is to position and fix the bipolar plate 33. Since there is a certain error in the loading and unloading position, the bipolar plate 33 is clamped on the right-angle positioning reference by the cylinder push, and the vacuum suction plate 34 supporting the bipolar plate 33 is adsorbed and positioned at the same time, thereby achieving complete positioning of the bipolar plate 33. Specifically, the push-to-position suction plate fixture 3 includes a supporting plate whose main extension surface is a rectangle, and a fixed right-angle positioning base 31 is provided at the first corner of the supporting plate, and a fixed positioning base is provided opposite to the length direction of the fixed right-angle positioning base 31, and a pneumatic push-to-position clamping device 32 is provided at both ends of the second length side of the supporting plate and at the angle of the fixed positioning base. The design of the push-to-position suction plate fixture 3 greatly reduces the requirements for loading accuracy, and the cylinder clamping can quickly realize the positioning of the workpiece. Preferably, the supporting plate is a vacuum suction plate 34 with controllable adsorption. A major function of the vacuum suction plate 34 is that after the pneumatic pushing and clamping device 32 completes the positioning of the bipolar plate 33, the vacuum suction plate 34 can absorb and offset the deformation of the incoming plate material, and at the same time provide good support for the dispensing, bonding and pressing and curing processes.

[0034] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present technical content. As long as these changes do not deviate from the concept of the present invention, they all fall within the scope of protection of this patent.

Claims

1. A transfer table type bipolar plate laminating MEA automated equipment for single cell production, characterized by: include: A turntable device, comprising a turntable platen capable of being servo-driven and step-rotated, wherein the top surface of the turntable platen has four working positions, and the four working positions are arranged in a circular array with the rotation center of the turntable platen as the center; Push-to-position suction plate tooling, the push-to-position suction plate tooling has 4 groups, and each group of push-to-position suction plate tooling is installed on four working positions respectively; The glue dispensing mechanism and the UV glue curing mechanism are arranged on the turntable device, and the execution effect ends of the glue dispensing mechanism and the UV glue curing mechanism face the turntable plate; The turntable device can drive the turntable plate to rotate, so that the pushing and positioning suction plate tooling moves one by one between the glue dispensing mechanism and the UV glue curing mechanism.

2. The transfer table type bipolar plate bonding MEA automation equipment for single cell production according to claim 1, characterized in that: The glue dispensing mechanism and the UV glue curing mechanism are arranged on two opposite sides of the turntable device.

3. The transfer table type bipolar plate bonding MEA automation equipment for single cell production according to claim 2, characterized in that: The turntable device also includes a loading and unloading station and an MEA loading and laminating station.

4. The transfer table type bipolar plate bonding MEA automation equipment for single cell production according to claim 1, characterized in that: The dispensing mechanism is a three-axis dispensing mechanism.

5. The transfer table type bipolar plate bonding MEA automation equipment for single cell production according to claim 1, characterized in that: The axis center of the turntable plate is vertically hollowed out, and a pneumatic and electric slip ring is installed at the axis center of the turntable plate.

6. The transfer table type bipolar plate bonding MEA automation equipment for single cell production according to claim 1, characterized in that: The transmission device of the turntable device comprises a cam divider for precise transmission.

7. The transfer table type bipolar plate bonding MEA automation equipment for single cell production according to claim 1, characterized in that: The push-to-position suction plate tooling comprises a supporting plate whose main extension surface is a rectangle, a fixed right-angle positioning foundation is arranged at the first corner of the supporting plate, and a fixed positioning foundation is arranged opposite to the fixed right-angle positioning foundation in the length direction; Pneumatic pushing and clamping devices are arranged at both ends of the second length side of the supporting plate and at the angle of the fixed positioning base.

8. The transfer table type bipolar plate bonding MEA automation equipment for single cell production according to claim 1, characterized in that: The supporting plate is a vacuum suction plate with controllable adsorption.

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