Transfer system for fuel cell collector plate bearing jig

Abstract

The utility model relates to the technical field of welding seam visual inspection equipment manufacturing, in particular to a fuel cell collector plate bearing jig transfer system. And the left conveyor, the transfer conveyor and the right conveyor jointly form a U-shaped bearing jig carrying line. The left supporting and jacking transferring conveyor and the right supporting and jacking transferring conveyor occupy the feeding station and the discharging station correspondingly and are both kept right opposite to the transfer conveyor. The full-load-state bearing jig bears the fuel cell collector plates in batches and picks up the fuel cell collector plates one by one on the feeding station; and after the bearing jig is emptied, the left supporting and jacking transfer conveyor, the transfer conveyor and the right supporting and jacking transfer conveyor cooperate to transfer the bearing jig to a discharging station. Therefore, on one hand, on the premise that the number of the bearing jigs is strictly controlled, the circulation process of the fuel cell collector plate is effectively optimized, and the circulation efficiency is remarkably improved; and on the other hand, the site area occupied by the transfer system is relatively small, and workshop optimization layout of the transfer system is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding seam visual inspection equipment manufacturing technical field, especially a kind of fuel cell current collector plate bearing jig transfer system. BACKGROUND

[0002] Fuel cell is a kind of high-efficiency power generation device that converts chemical energy of fuel into electrical energy by electrochemical reaction without burning fuel, and has been widely valued and applied. Fuel cell current collector plate is an important component in fuel cell system, which plays a key role in concentrating, distributing and transmitting electrical energy generated by fuel cell. Fuel cell current collector plate is a plate-shaped component made of conductive material, used to connect multiple single cells in fuel cell stack and provide power supply and current distribution function.

[0003] As shown in Figure 1 Fuel cell current collector plate has a large number of welding seams distributed on it, and has extremely strict forming quality requirements. According to the functional classification of fuel cell current collector plate area, it is divided into flow channel area welding and sealing area welding, and the corresponding welding materials are mostly metal, with a thickness of 0.05-0.3mm for single material. Specifically, the welding seam surface should be smooth and flat, without obvious defects such as welding bumps, depressions, pores and cracks; the welding seam should be smoothly transitioned with the base material, without obvious defects such as undercut, incomplete fusion and incomplete penetration; the shape and size of the welding seam should meet the design requirements, and should not exceed the allowable deviation; the welding seam surface should not have defects such as missed welding, miswelding and slag inclusion that affect use and appearance. In the prior art, welding seam visual inspection equipment mainly consists of a machine table, a ring conveyor, a workpiece carrier, a turnover robot, an upstream visual inspection camera and a downstream visual inspection camera. The workpiece carrier is used to carry fuel cell current collector plates one by one. Multiple workpiece carriers are arranged on the ring conveyor, and the fuel cell current collector plates are transported one by one through the upstream detection position under the action of the conveying force from the ring conveyor. During this period, the upstream visual inspection camera picks up the complete front welding seam image of the fuel cell current collector plate, and then the turnover robot performs a 180° turnover operation on the fuel cell current collector plate. Under the action of the conveying force, the fuel cell current collector plate continues to flow and passes through the downstream detection position. During this period, the downstream visual inspection camera picks up the complete back welding seam image of the fuel cell current collector plate. During the unloading process, the fuel cell current collector plate is taken off from the workpiece carrier by a multi-degree-of-freedom robot, and the empty workpiece carrier continues to flow back to the loading position to welcome the fuel cell current collector plates to be detected. According to feedback from upstream new energy vehicle manufacturers, in actual application, the detection effect is poor, the detection efficiency is extremely low, and welding seam defects are often misdetected or missed. Moreover, the welding seam visual inspection equipment occupies a large area, which is not conducive to the workshop layout. Therefore, the company recently developed a fuel cell current collector plate welding seam visual inspection equipment.

[0004] It is known that, for the old weld visual inspection equipment, a single weld visual inspection equipment needs to be matched with multiple workpiece carriers at the same time, which to some extent restricts the flow speed of fuel cell current collector plates, and the implementation cost is high. Moreover, in the prior art, no fuel cell current collector plate carrying jig transfer system compatible with the design concept of the new fuel cell current collector plate weld visual inspection equipment is retrieved. Therefore, it is urgent for technical personnel to solve the above problems. Content of the utility model

[0005] Therefore, the designers of the present utility model, in view of the above-mentioned problems and defects of the prior art, collected relevant data, evaluated and considered various aspects, and through years of research and development experience of technical personnel in this industry, continuous experiments and modifications, finally led to the emergence of the fuel cell current collector plate carrying jig transfer system.

[0006] In order to solve the above technical problems, the present utility model relates to a fuel cell current collector plate carrying jig transfer system, which belongs to a fuel cell current collector plate weld visual inspection equipment. The carrying jig is used to carry a batch of stacked fuel cell current collector plates. The fuel cell current collector plate carrying jig transfer system comprises a left-positioned conveyor, a left-positioned top-plate moving and transferring conveyor, a transfer conveyor, a right-positioned conveyor and a right-positioned top-plate moving and transferring conveyor. The left-positioned conveyor, the transfer conveyor and the right-positioned conveyor together form a "U" shaped carrying jig carrying line. The left-positioned top-plate moving and transferring conveyor occupies a feeding station, is hidden directly below the left-positioned conveyor, and is in direct position with the transfer conveyor. The right-positioned top-plate moving and transferring conveyor occupies a discharging station, is hidden directly below the right-positioned conveyor, and is also in direct position with the transfer conveyor. The empty carrying jig at the feeding station is separated from the left-positioned conveyor under the action of the lifting force from the left-positioned top-plate moving and transferring conveyor, and is transferred to the transfer conveyor under the action of the carrying force from the left-positioned top-plate moving and transferring conveyor. The empty carrying jig transferred by the transfer conveyor is received by the right-positioned top-plate moving and transferring conveyor, and continues to be transferred to the discharging station to receive a batch of fuel cell current collector plates with qualified welds. After the carrying jig is fully loaded, the right-positioned top-plate moving and transferring conveyor performs a posture transformation action, and the fully loaded carrying jig performs a descending motion until it is placed on the right-positioned conveyor.

[0007] As a further improvement of the technical scheme disclosed by the present utility model, the left-positioned top-plate moving and transferring conveyor and the right-positioned top-plate moving and transferring conveyor have the same design structure. The left-positioned top-plate moving and transferring conveyor comprises a left-positioned base plate, a left-positioned belt conveyor and a left-positioned linear motion actuator. The left-positioned base plate is the mounting base of the left-positioned linear motion actuator, is placed on the machine table of the fuel cell current collector plate visual inspection equipment, and is fixed integrally in a detachable manner. The left-positioned belt conveyor performs lifting motion under the action of the driving force from the left-positioned linear motion actuator.

[0008] As further improvement of the disclosed technical scheme of the utility model, the left-arranged supporting and top-moving conveying machine further comprises a left-arranged guiding unit. Under the action of the left-arranged guiding unit, the left-arranged belt conveyor can perform directional lifting movement.

[0009] As further improvement of the disclosed technical scheme of the utility model, the left-arranged guiding unit comprises a plurality of left-arranged guiding columns and left-arranged guiding sleeves which are applied in matching. The left-arranged guiding sleeves take the left-arranged base plate as the basis for insertion and mounting. The left-arranged guiding columns take the left-arranged belt conveyor as the basis for mounting. In the process of lifting movement of the left-arranged belt conveyor, the left-arranged guiding sleeves are always subjected to the guiding constraint force from the left-arranged guiding columns.

[0010] As further improvement of the disclosed technical scheme of the utility model, the left-arranged supporting and top-moving conveying machine further comprises a photoelectric sensor. The photoelectric sensor is used to determine whether the supporting jig exists on the left-arranged supporting and top-moving conveying machine, and is detachably connected with the left-arranged supporting and top-moving conveying machine.

[0011] As further improvement of the disclosed technical scheme of the utility model, the transfer conveyor comprises a temporary stopping mechanism. Under the condition that the transfer conveyor does not stop, the supporting jig is temporarily stopped due to the blocking force from the temporary stopping mechanism.

[0012] As further improvement of the disclosed technical scheme of the utility model, the temporary stopping mechanism comprises a force bearing frame and a blocking cylinder. The force bearing frame is a sheet metal part and has a whole "N" shape. The front and rear conveying beams of the transfer conveyor are used as the detachable mounting bases of the force bearing frame. The blocking cylinder is used to directly apply the blocking force to the supporting jig, and takes the force bearing frame as the mounting base.

[0013] During the operation of the fuel cell collecting plate welding seam visual detection equipment, the supporting jig full of fuel cell collecting plates occupies the loading station, and the multi-degree-of-freedom manipulator picks up the fuel cell collecting plates one by one and continuously flows to the welding seam visual detection station. After the fuel cell collecting plates are emptied, the left-arranged supporting and top-moving conveying machine performs a posture transformation action, the empty supporting jig is away from the left-arranged conveyor due to the lifting force from the left-arranged supporting and top-moving conveying machine, and under the carrying force from the left-arranged supporting and top-moving conveying machine, the empty supporting jig flows to the transfer conveyor, under the carrying force from the transfer conveyor, the empty supporting jig continues to flow, and is finally received by the right-arranged supporting and top-moving conveying machine. Then, the empty supporting jig continues to flow under the carrying force from the right-arranged supporting and top-moving conveying machine, and finally reaches the unloading station. The fuel cell collecting plates that pass the welding seam detection are accumulated on the supporting jig one by one until full. The right-arranged supporting and top-moving conveying machine performs a posture transformation action, the relative position height of the full supporting jig is lowered until it is placed on the right-arranged conveyor and flows directionally.

[0014] In practical application, the fuel cell current collector plate bearing jig transfer system disclosed by the utility model can achieve the following beneficial technical effects, specifically:

[0015] 1) The full-load bearing jig can carry a batch of fuel cell current collector plates, and each plate is picked up at the loading station to gradually supply the fuel cell current collector plates to the loading tool to meet the working rhythm of the weld detection station. After the bearing jig is emptied, the left supporting top transfer conveyor, the transfer conveyor and the right supporting top transfer conveyor are coordinated to transfer the fuel cell current collector plates to the unloading station and receive a batch of fuel cell current collector plates that pass the visual weld detection. In this way, on the one hand, the flow process of the fuel cell current collector plates is effectively optimized, and the flow efficiency is significantly improved, which provides a good foundation for the substantial improvement of the detection efficiency of the fuel cell current collector plate visual weld detection equipment. On the other hand, at the loading station, the bearing jig is used to carry the fuel cell current collector plates for visual detection, and at the unloading station, the bearing jig is used to carry the fuel cell current collector plates that pass the visual detection, thereby greatly improving the utilization rate of the bearing jig and reducing the number of supporting devices required;

[0016] 2) The design structure of the fuel cell current collector plate bearing jig transfer system is relatively simple, and the area occupied is relatively small, which is beneficial to the optimization of the workshop layout;

[0017] 3) Thanks to the fact that the bearing jig can carry a batch of fuel cell current collector plates, the left conveyor, the left supporting top transfer conveyor, the transfer conveyor, the right conveyor and the right supporting top transfer conveyor can all be kept in a stopped or almost stopped state during the loading and unloading operations, thereby effectively reducing energy consumption and achieving the design goal of energy saving and emission reduction. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings needed in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0019] Figure 1 is a three-dimensional schematic view of the fuel cell current collector plate disclosed in the present utility model.

[0020] Figure 2 is a three-dimensional schematic view of the fuel cell current collector plate visual weld detection equipment disclosed in the present utility model.

[0021] Figure 3It is also the perspective view of the fuel cell current collector plate welding seam visual inspection equipment disclosed in the utility model.

[0022] Figure 4 It is the perspective view of the fuel cell current collector plate bearing jig transfer system disclosed in the utility model.

[0023] Figure 5 It is also the perspective view of the fuel cell current collector plate bearing jig transfer system disclosed in the utility model (hidden under the state of the bearing jig).

[0024] Figure 6 It is the perspective view of the fuel cell current collector plate bearing jig transfer system disclosed in the utility model.

[0025] Figure 7 It is the perspective view of the fuel cell current collector plate bearing jig transfer system disclosed in the utility model.

[0026] Figure 8 It is the front view of Figure 6 .

[0027] Figure 9 It is the A-A sectional view of Figure 8 .

[0028] Figure 10 It is the perspective view of the fuel cell current collector plate bearing jig transfer system disclosed in the utility model.

[0029] Figure 11 It is the perspective view of the fuel cell current collector plate bearing jig transfer system disclosed in the utility model.

[0030] Figure 12 It is the perspective view of the fuel cell current collector plate bearing jig transfer system disclosed in the utility model.

[0031] 1-left conveyor; 2-left top-moving conveyor; 21-left base plate; 22-left belt conveyor; 23-left linear motion actuator; 24-left guide unit; 241-left guide column; 242-left guide sleeve; 25-optoelectronic sensor; 3-intermediate conveyor; 31-intermediate parking mechanism; 311-bearing frame; 312-blocking cylinder; 4-right conveyor; 5-right top-moving conveyor. DETAILED DESCRIPTION

[0032] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", "up", "down", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] The present invention will be further described in detail below with reference to specific embodiments. Figure 2 , Figure 3 The diagrams show three-dimensional schematics of the fuel cell current collector weld visual inspection equipment disclosed in this utility model under different states. It can be seen that the fuel cell current collector carrying fixture transfer system is used to support the weld visual inspection unit. It is used not only to realize the continuous feeding operation of fuel cell current collectors to be visually inspected to the weld visual inspection unit, but also to realize the collection operation of fuel cell current collectors that have passed visual inspection.

[0034] Figure 4 , Figure 5 The diagrams show the fuel cell manifold carrier transfer system disclosed in this invention under different states. It can be seen that it mainly consists of a left-side conveyor 1, a left-side top-loading transfer conveyor 2, a transfer conveyor 3, a right-side conveyor 4, and a right-side top-loading transfer conveyor 5. The left-side conveyor 1, transfer conveyor 3, and right-side conveyor 4 together form a U-shaped carrier transfer line. The left-side top-loading transfer conveyor 2 occupies the loading station, hidden directly below the left-side conveyor 1, and aligned with the left end of the transfer conveyor 3. The right-side top-loading transfer conveyor 5 occupies the unloading station, hidden directly below the right-side conveyor 4, and aligned with the right end of the transfer conveyor 3. The unloaded load-bearing fixture located at the loading station is separated from the left conveyor 1 by the lifting force from the left top-mounted transfer conveyor 2, and then transferred to the transfer conveyor 3 by the carrying force from the left top-mounted transfer conveyor 2. The unloaded load-bearing fixture transferred from the transfer conveyor 3 is received by the right top-mounted transfer conveyor 5 and continues to be transferred to the unloading station to receive fuel cell current collectors that have passed the weld visual inspection in batches. After the load-bearing fixture is fully loaded, the right top-mounted transfer conveyor 5 performs a posture change action, and the fully loaded load-bearing fixture then performs a descent movement until it is placed on the right conveyor 4.

[0035] The working principle of the fuel cell current collector plate bearing jig transfer system is roughly as follows: during the operation of the fuel cell current collector plate welding seam visual inspection equipment, the bearing jig loaded with fuel cell current collector plates occupies the loading station, and the fuel cell current collector plates are picked up by the multi-degree-of-freedom manipulator one by one and continuously transferred to the welding seam visual inspection station. After the fuel cell current collector plates are emptied, the left top-moving transfer machine 2 performs a posture transformation action, the empty bearing jig is pushed away from the left transfer machine 1 by the lifting force from the left top-moving transfer machine 2, and is transferred from the left transfer machine 1 to the transfer conveyor 3 under the carrying force from the left top-moving transfer machine 2. Under the carrying force from the transfer conveyor 3, the empty bearing jig continues to be transferred and is finally received by the right top-moving transfer machine 5. Then, the empty bearing jig continues to be transferred under the carrying force from the right top-moving transfer machine 5 until the unloading station. The fuel cell current collector plates that pass the welding seam inspection are accumulated one by one in the bearing jig until the bearing jig is fully loaded. The right top-moving transfer machine 5 performs a posture transformation action, the relative position height of the fully loaded bearing jig is lowered until the bearing jig is placed on the right transfer machine 4 and is transferred to the next process in a specific direction.

[0036] In practical applications, the fuel cell current collector plate bearing jig transfer system disclosed in the utility model has the following beneficial technical effects, specifically:

[0037] 1) The transfer process of the fuel cell current collector plates is effectively optimized, and the transfer efficiency is significantly improved, which provides a good foundation for the substantial improvement of the detection efficiency of the fuel cell current collector plate welding seam visual inspection equipment.

[0038] 2) At the loading station, the bearing jig is used to bear the fuel cell current collector plates to be visually inspected, and at the unloading station, the bearing jig is used to bear the fuel cell current collector plates that pass the visual inspection, thereby substantially reducing the number of bearing jigs required.

[0039] 3) The design structure of the fuel cell current collector plate bearing jig transfer system is relatively simple, and the area occupied is relatively small, which is beneficial to the optimization of the workshop layout.

[0040] In addition, it should be noted that, thanks to the fact that the bearing jig can carry a batch of fuel cell current collector plates, the left transfer machine 1, the left top-moving transfer machine 2, the transfer conveyor 3, the right transfer machine 4 and the right top-moving transfer machine 5 can all be kept in a stopped or almost stopped state during the loading and unloading operations, thereby effectively reducing energy consumption and achieving the design goal of energy saving and emission reduction.

[0041] By Figure 5As shown, the left-side top-support transfer conveyor 2 and the right-side top-support transfer conveyor 5 have the same design structure, and their application functions are comparable. For the sake of brevity, only the design concept of the left-side top-support transfer conveyor 2 will be described here, as follows... Figures 6-9 As shown, the left-side top-mounted transfer conveyor 2 mainly consists of a left-side base plate 21, a left-side belt conveyor 22, and a left-side linear motion actuator 23. The left-side base plate 21 serves as the mounting base for the left-side linear motion actuator 23, resting flat on the machine platform of the fuel cell current collector vision inspection equipment and detachably fixed as a single unit. The left-side belt conveyor 22 performs lifting and lowering movements under the driving force from the left-side linear motion actuator 23.

[0042] In practical applications, after the load-bearing fixture occupying the loading station is cleared, the left linear motion actuator 23 is activated to push the left belt conveyor 22 to perform an upward motion, so that the unloaded load-bearing fixture can be separated from the left conveyor 1. Then, the left belt conveyor 22 is activated, and the unloaded load-bearing fixture is transferred to the transfer conveyor 3 due to the continuous carrying force from the left belt conveyor 22.

[0043] To ensure excellent orientation of the left-side belt conveyor 22 during its lifting motion, and thus to ensure the stable support of the carrying fixture, as a further optimization of the above technical solution, similarly... Figures 6-9 As shown, the left-side support transfer conveyor 2 is further equipped with a left-side guide unit 24. The left-side guide unit 24 includes multiple sets of matching left-side guide posts 241 and left-side guide sleeves 242. The left-side guide sleeves 242 use the left-side base plate 21 as their insertion base. The left-side guide posts 241 use the left-side belt conveyor 22 as their mounting base. During the lifting and lowering motion of the left-side belt conveyor 22, the left-side guide sleeves 242 are always subjected to a guiding constraint force from the left-side guide posts 241, enabling the left-side belt conveyor 22 to perform directional lifting and lowering motion.

[0044] It should also be noted that during the process of lifting the left-side belt conveyor 22, most of the lateral force generated is shared by the left-side guide unit 24, which effectively avoids the premature damage of the left-side linear motion actuator 23 due to excessive lateral force and helps to extend its service life.

[0045] Depending on the specific application scenario and customer requirements, the left-side linear motion actuator 23 can preferably be a cylinder, hydraulic cylinder, or linear motor, etc., and there is no limitation on the type.

[0046] Furthermore, by Figure 6As can be clearly seen in the diagram, the left-side support transfer conveyor 2 is also equipped with a photoelectric sensor 25. The photoelectric sensor 25 is detachable to achieve a fixed connection with the left-side belt conveyor 22. The photoelectric sensor 25 is used to determine whether there is a load-bearing fixture on the left-side belt conveyor 22, and the determination result serves as the basis for the left-side support transfer conveyor 2 to issue subsequent action commands.

[0047] like Figure 10 , 11 As shown, the transfer conveyor 3 is equipped with a temporary stop mechanism 31. The temporary stop mechanism 31 mainly consists of a support frame 311 and a blocking cylinder 312. The support frame 311 is a sheet metal part and is generally U-shaped. The front and rear conveyor beams of the transfer conveyor 3 are used as detachable fixing bases for the support frame 311. The blocking cylinder 312 (e.g., Figure 12 (As shown) is a purchased component used to directly apply a blocking force to the carrying fixture, and it uses the support frame 311 as its mounting base. Thus, without stopping the transfer conveyor 3, the carrying fixture can be temporarily stopped by the blocking force from the blocking cylinder 312 until the working surface of the right-side support transfer conveyor 5 is raised to be flush with the working surface of the right-side conveyor 4, and the carrying fixture can be smoothly transferred to the right-side support transfer conveyor 5.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fuel cell current collector plate carrying jig transfer system, belonging to a fuel cell current collector plate weld visual inspection apparatus; the carrying jig is used to carry a plurality of stacked fuel cell current collector plates, characterized in that, The left conveyor, the middle transfer conveyor and the right conveyor jointly form a "U" shaped bearing fixture carrying line; the left top-loading transfer conveyor occupies the feeding station, is hidden directly below the left conveyor and is in direct position with the middle transfer conveyor; the right top-loading transfer conveyor occupies the discharging station, is hidden directly below the right conveyor and is also in direct position with the middle transfer conveyor; the empty bearing fixture at the feeding station is separated from the left conveyor under the push-up force from the left top-loading transfer conveyor and is transferred to the middle transfer conveyor under the carrying force from the left top-loading transfer conveyor; the empty bearing fixture transferred by the middle transfer conveyor is received by the right top-loading transfer conveyor and continues to be transferred to the discharging station to batch receive the fuel cell current collector plates that pass the visual inspection of the welds; after the bearing fixture is fully loaded, the right top-loading transfer conveyor performs a posture transformation action, the fully loaded bearing fixture performs a descending movement and is placed on the right conveyor.

2. The fuel cell current collector carrying jig transfer system according to claim 1, wherein The left top-loading transfer conveyor and the right top-loading transfer conveyor have the same design structure; the left top-loading transfer conveyor comprises a left base plate, a left belt conveyor and a left linear motion actuator; the left base plate is the mounting base of the left linear motion actuator, is placed on the machine table of the fuel cell current collector visual inspection equipment and is fixed integrally in a detachable manner; the left belt conveyor performs a lifting movement under the driving force from the left linear motion actuator.

3. The fuel cell current collector carrying jig transfer system according to claim 2, wherein The left top-loading transfer conveyor further comprises a left guide unit; under the action of the left guide unit, the left belt conveyor performs a directional lifting movement.

4. The fuel cell current collector carrying jig transfer system according to claim 3, wherein The left guide unit comprises a left guide sleeve and a left guide column which are applied in multiple sets; the left guide sleeve is inserted into the left base plate; the left guide column is mounted on the left belt conveyor; in the process of the lifting movement of the left belt conveyor, the left guide sleeve is always subjected to the guiding constraint force from the left guide column.

5. The fuel cell current collector carrying jig transfer system of claim 2, wherein The left top-loading transfer conveyor further comprises a photoelectric sensor; the photoelectric sensor is used to determine whether there is a bearing fixture on the left belt conveyor and is fixedly connected to the left belt conveyor in a detachable manner.

6. The fuel cell current collector carrying jig transfer system according to any one of claims 1 to 5, wherein The middle transfer conveyor comprises a temporary stop mechanism; under the condition that the middle transfer conveyor does not stop, the bearing fixture is temporarily stopped under the blocking force from the temporary stop mechanism.

7. The fuel cell current collector carrying jig transfer system of claim 6, wherein, The temporary stop mechanism comprises a force bearing frame and a blocking cylinder; the force bearing frame is a sheet metal part and has a whole "U" shape; the front and rear conveying beams of the transfer conveyor are used as detachable fixing bases of the force bearing frame; the blocking cylinder is used to directly apply a blocking force to the bearing fixture, and the force bearing frame is used as a mounting base of the blocking cylinder.

Images