CN215377456U

CN215377456U - Annular production line of fuel cell

Info

Publication number: CN215377456U
Application number: CN202121171312.0U
Authority: CN
Inventors: 华周发; 汪聪; 祝立根
Original assignee: Hubei Mofang New Energy Technology Co ltd; Shandong Cube New Energy Technology Co Ltd
Current assignee: Mofang Hydrogen Energy Technology Jiangsu Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-31
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to a fuel cell production technology, in particular to an annular production line of a fuel cell, wherein a conveying line body is sequentially connected end to end and is annularly arranged, and a feeding assembly device, a steel strip welding device, an accessory assembly device, an air tightness detection device and a blanking device are sequentially arranged on the conveying line body; in the steel strip welding device, a battery platform is arranged on the top surface of a base, at least two end bearing blocks are arranged on the side surface of the battery platform, a rotating shaft is rotatably arranged on the end bearing blocks through bearings, a bending pressure head is fixedly connected to the rotating shaft, and one end of the rotating shaft extends out of the end bearing blocks; the hinged base is installed on the top surface of the base, the tail of the linear power device is hinged to the hinged base, the extending end of the linear power device is hinged to the first end of the connecting rod, and the second end of the connecting rod is fixedly connected with the rotating shaft. This production line has the advantage of high-efficient assembly fuel cell, can accomplish the bending of a plurality of ribbons simultaneously in addition.

Description

Annular production line of fuel cell

Technical Field

The utility model relates to a fuel cell production technology, in particular to an annular production line of a fuel cell.

Background

A fuel cell is a chemical device that directly converts chemical energy possessed by a fuel into electrical energy. In the prior art, the fuel cell needs to be bound by a steel binding belt in the final stage of the assembly of the fuel cell, the binding belt is welded and fixed at the joint of the binding belt after being bound, the assembly of the prior fuel cell has no production line form, and the assembly efficiency is low.

In addition, the steel ribbon of the fuel cell is welded by adopting a manual installation bending ribbon, and the steel ribbon is easy to deform and does not conform to the assembly requirement. Another significant disadvantage of manual bending is that the work efficiency is low, multiple ribbons of the fuel cell need to be bent one by manual bending, a special tool is used to clamp the bottom end of the bent ribbon, and a single ribbon is bent for a long time.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides an annular production line of the fuel cell, which has the advantage of efficiently assembling the fuel cell, can simultaneously complete the bending of a plurality of ribbons, and can accurately bend the ribbons to avoid the deformation of the ribbons in the bending process.

In order to achieve the purpose, the utility model adopts the technical scheme that:

an annular production line of a fuel cell comprises a feeding assembly device, a steel belt welding device, an accessory assembly device, an air tightness detection device, a discharging device and a conveying line body, wherein the conveying line body is sequentially connected end to end and annularly arranged, and the feeding assembly device, the steel belt welding device, the accessory assembly device, the air tightness detection device and the discharging device are sequentially arranged on the conveying line body; the steel strip welding device comprises a base and two groups of ribbon bending mechanisms, each ribbon bending mechanism comprises a hinge seat, a linear power device, a connecting rod, end bearing seats, a rotating shaft and a bending pressure head, a battery platform is arranged on the top surface of the base, at least two end bearing seats are arranged on the side surface of the battery platform, the rotating shaft is rotatably arranged on the end bearing seats through bearings, the bending pressure head is fixedly connected to the rotating shaft, and one end of the rotating shaft extends out of the end bearing seats; the articulated seat is installed on the top surface of the base, the tail part of the linear power device is articulated on the articulated seat, the extending end of the linear power device is articulated with the first end of the connecting rod, the second end of the connecting rod is fixedly connected with the rotating shaft, and the linear power device can drive the bending pressure head to rotate through the connecting rod and the rotating shaft.

Preferably, the bending pressure heads are multiple, and a middle bearing seat used for supporting the rotating shaft to rotate is further arranged between every two adjacent bending pressure heads.

Preferably, the bending indenter has a Z-shaped structure.

Preferably, the bending indenter has a position avoiding area for avoiding interference with the battery platform when the battery platform is turned upwards.

Preferably, the contact surface of the bending pressure head and the ribbon is in a long strip shape, the edges of the two sides of the contact surface of the bending pressure head and the ribbon extend in the direction perpendicular to the contact surface of the ribbon and form positioning protrusions, and a groove-shaped area for accommodating the ribbon is formed between the two positioning protrusions.

Preferably, the linear power device is an electric cylinder or an air cylinder.

The beneficial effects of the utility model are as follows:

the annular production line of the fuel cell is applied to the assembly production of the fuel cell stack, and can finish the operations of feeding, steel belt welding, assembling and air tightness detection in sequence due to the arrangement characteristics of the feeding assembly device, the steel belt welding device, the accessory assembly device, the air tightness detection device and the discharging device, thereby improving the production efficiency, ensuring good consistency of assembled products and high qualification rate.

The steel band welding device drives the rotating shaft to rotate through the connecting rod through the linear power device, and synchronously bends a plurality of bands on the side face of the battery through the synchronous action of a plurality of bending pressure heads on the rotating shaft; the structure is simple, the operation is convenient, the labor intensity of workers is reduced, and the production efficiency is improved; the whole structure is clean and pollution-free.

Drawings

Fig. 1 is a schematic view showing the structure of a ring line for a fuel cell according to the present invention.

Fig. 2 is a schematic view showing the structure of a steel strip welding apparatus in a ring production line of a fuel cell according to the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Figure 4 is a schematic view of a bending ram in a ring line for a fuel cell of the present invention.

The reference numerals include:

1-feeding assembly device, 2-steel strip welding device, 210-battery platform, 220-ribbon bending mechanism, 221-hinged seat, 222-linear power device, 223-connecting rod, 224-end bearing seat, 225-rotating shaft, 226-bending pressure head, 2261-avoiding area, 2262-positioning bulge, 3-accessory assembly device, 4-air tightness detection device, 5-blanking device and 6-conveying line body.

Detailed Description

In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.

As shown in fig. 1, the present embodiment provides an annular production line for a fuel cell, which includes a feeding assembly device 1, a steel strip welding device 2, an accessory assembly device 3, an air tightness detection device 4, a discharging device 5, and a conveyor line body 6, wherein the conveyor line body 6 is sequentially connected end to end and annularly disposed, and the feeding assembly device 1, the steel strip welding device 2, the accessory assembly device 3, the air tightness detection device 4, and the discharging device 5 are sequentially installed and conveyed on the conveyor line body 6.

The circular production line action flow of the specific fuel cell is characterized in that a fuel cell polar plate is manually placed in a polar plate feeding frame, a fuel cell exchange membrane is placed in the feeding frame, a robot grabs the polar plate feeding stack, a conveying line body 6 conveys the fuel cell after the stack is completed to a steel strip welding device 2, equipment presses the fuel cell, welding equipment automatically bends, bundles and welds the steel strip, the conveying line body 6 conveys the fuel cell to an accessory assembling device 3, namely a screw rod and an accessory after the welding is completed, the conveying line body 6 conveys the fuel cell to an air tightness detection device 4 after the installation is completed, the air tightness detection device conveys the fuel cell to a blanking device 5 after air tightness detection is performed, and the blanking robot clamps the fuel cell and places the fuel cell in a material box.

The annular production line of the fuel cell is applied to the assembly production of the fuel cell stack, and due to the arrangement characteristics of the feeding assembly device 1, the steel belt welding device 2, the accessory assembly device 3, the air tightness detection device 4 and the blanking device 5, the feeding, steel belt welding, assembling and air tightness detection can be completed in sequence, the production efficiency can be improved, the consistency of the assembled product is good, and the qualification rate is high.

As shown in fig. 2 to 4, the automatic fuel cell band bending mechanism provided in this embodiment includes a base and two sets of band bending mechanisms 220, where the band bending mechanisms 220 include a hinge seat 221, a linear power device 222, a connecting rod 223, end bearing seats 224, a rotating shaft 225, and a bending pressure head 226, a battery platform 210 is disposed on a top surface of the base, at least two end bearing seats 224 are disposed on a side surface of the battery platform 210, the rotating shaft 225 is rotatably mounted on the end bearing seats 224 through a bearing, the bending pressure head 226 is fixedly connected to the rotating shaft 225, and one end of the rotating shaft 225 extends out of the end bearing seats 224; the hinged seat 221 is installed on the top surface of the base, the tail part of the linear power device 222 is hinged on the hinged seat 221, the extending end of the linear power device 222 is hinged with the first end of the connecting rod 223, the second end of the connecting rod 223 is fixedly connected with the rotating shaft 25, and the linear power device 222 can stretch and retract to drive the bending pressure head 226 to rotate through the connecting rod 223 and the rotating shaft 225. The bending pressure heads 226 are multiple, and a middle bearing seat for supporting the rotation of the rotating shaft 225 is further arranged between every two adjacent bending pressure heads 226.

The bending mechanism is applied to fuel cell ribbon welding and assembling equipment and is used for an automatic ribbon assembling workstation. The steel cable tie is placed on the bending assembly and positioned by an operator, the equipment working button is started, and the cable tie bending mechanisms 220 on the front side and the rear side of the battery platform 210 act simultaneously.

The steel ribbon is bound on the side surface of the fuel cell through the action of the ribbon bending mechanism 220, the steel ribbon is firstly placed in a prefabricated groove of the fuel cell platform 210, the main body of the fuel cell is placed on the fuel cell platform 210, the steel ribbon is pressed by the main body of the fuel cell at the moment, and five steel ribbons are used by the fuel cell.

As shown in fig. 3, the strap bending mechanism 220 starts to act, specifically: the cylinder is ejecting, and the end that stretches out of cylinder drives pivot 225 through connecting rod 223 and rotates, and pivot 225 passes through the supporting effect of tip bearing frame 224 and middle part bearing frame, and pivot 225 begins to rotate, and the pressure head 226 of buckling rotates as the center of rotation along the axle center of pivot 225 along pivot 225, and the pressure head 226 of buckling upwards overturns, accomplishes the synchronous bending of five steel ribbons. As shown in fig. 1, in this embodiment, the two sides of the battery platform 210 in the length direction are provided with the band bending mechanisms 220, so that the steel bands at the two sides of the fuel cell main body can be bent.

As shown in fig. 3, the crimping indenter 226 has a "Z" configuration. Since the area of the bottom surface of the fuel cell is smaller than the area of the top surface of the cell platform 210, the bending indenter 226 has a clearance area 2261 for avoiding interference with the cell platform 210 when the fuel cell is turned up. After the bending ram 226 is turned upwards, the bending ram 226 may press and attach the tie tape to the electrical testing side.

The contact surface of the bending pressure head 226 and the ribbon is strip-shaped, and the width of the bending pressure head is slightly wider than that of the ribbon.

As shown in fig. 4, two side edges of the contact surface of the bending pressure head 226 and the band extend in a direction perpendicular to the contact surface of the band and form positioning protrusions 2262, a groove-shaped area for accommodating the band is formed between the two positioning protrusions 2262, and the inner side wall of the groove-shaped area is slightly opened outwards to form a guide structure, so that the band can enter the groove-shaped area more easily.

Preferably, the linear power unit 222 is an electric cylinder or an air cylinder.

The foregoing is only a preferred embodiment of the present invention, and many variations in the specific embodiments and applications of the utility model may be made by those skilled in the art without departing from the spirit of the utility model, which falls within the scope of the claims of this patent.

Claims

1. An annular production line of fuel cells, characterized in that: the device comprises a feeding assembly device, a steel strip welding device, an accessory assembly device, an air tightness detection device, a discharging device and a conveying line body, wherein the conveying line body is sequentially connected end to end and annularly arranged, and the feeding assembly device, the steel strip welding device, the accessory assembly device, the air tightness detection device and the discharging device are sequentially arranged on the conveying line body; the steel strip welding device comprises a base and two groups of ribbon bending mechanisms, each ribbon bending mechanism comprises a hinge seat, a linear power device, a connecting rod, end bearing seats, a rotating shaft and a bending pressure head, a battery platform is arranged on the top surface of the base, at least two end bearing seats are arranged on the side surface of the battery platform, the rotating shaft is rotatably arranged on the end bearing seats through bearings, the bending pressure head is fixedly connected to the rotating shaft, and one end of the rotating shaft extends out of the end bearing seats; the articulated seat is installed on the top surface of the base, the tail part of the linear power device is articulated on the articulated seat, the extending end of the linear power device is articulated with the first end of the connecting rod, the second end of the connecting rod is fixedly connected with the rotating shaft, and the linear power device can drive the bending pressure head to rotate through the connecting rod and the rotating shaft.

2. The ring production line of fuel cells according to claim 1, characterized in that: the pressure head of buckling has a plurality ofly, still is equipped with between two adjacent pressure heads of buckling and is used for supporting pivot pivoted middle part bearing frame.

3. The ring production line of fuel cells according to claim 1, characterized in that: the bending pressure head is of a Z-shaped structure.

4. The ring production line of fuel cells according to claim 3, characterized in that: the bending pressure head is provided with a position avoiding area which is used for avoiding the interference with the battery platform when the bending pressure head turns upwards.

5. The ring production line of fuel cells according to claim 3, characterized in that: the contact surface of the bending pressure head and the ribbon is in a long strip shape, two side edges of the bending pressure head and the contact surface of the ribbon extend to the direction perpendicular to the contact surface of the ribbon and form positioning bulges, and two groove-shaped areas for accommodating the ribbon are formed between the positioning bulges.

6. The ring production line of fuel cells according to claim 1, characterized in that: the linear power device is an electric cylinder or an air cylinder.