Bipolar plate assembling equipment

Abstract

The invention discloses bipolar plate assembling equipment, and belongs to the technical field of welding. A conveyor is fixedly installed at the top end of the base table, and a plurality of tool plates are installed at the movable end of the conveyor. The edge clamping and fixing mechanisms are installed on the four edges of the tool plate correspondingly, each edge clamping and fixing mechanism comprises a side pushing assembly, a linkage assembly and an outer pressing plate, the double-station continuous feeding mechanism is installed at the left end of the base table, and the two tightly-attached welding mechanisms are sequentially installed at the right end of the base table in the conveying direction of the tool plate. After the tool plate loads the bipolar plate and moves to the position below the supporting frame, the bipolar plate is pressed and fixed to the tool plate through the inner pressing plate, the bipolar plate is clamped and fixed through the cooperation of the side pushing block and the outer pressing plate, the two sides of the to-be-welded part of each single-pole plate are pressed through the cooperation of the outer pressing plate and the inner pressing plate, the two single-pole plates are tightly attached, and welding is completed. And then, the welding head moves downwards to the welding space between the outer pressing plate and the inner pressing plate, the two stacked monopolar plates are welded, and the welding quality is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and particularly to a bipolar plate assembly device. Background Art

[0002] The bipolar plate is an important component of a fuel cell, which is formed by welding an anode plate and a printed plate.

[0003] Chinese Patent Application CN116175001A discloses a bipolar plate welding system, including: a rotating platform for placing bipolar plates, and the rotating platform sequentially has a loading position, a welding position, and an unloading position along the rotation direction; through the rotation of the rotating platform and the coordinated work of the loading mechanism, the welding mechanism, and the unloading mechanism, the welding efficiency can be improved. However, during the welding operation, the cathode plate and the anode plate need to be closely attached after being stacked, and the two plates are welded into shape through the conduction of the temperature during welding. If they are not completely aligned or the welding surfaces are not effectively attached when stacked, the welding accuracy will be reduced, and the defective rate of the production line will increase.

[0004] Based on this, the present invention designs a bipolar plate assembly device to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned drawbacks of the prior art, the present invention provides a bipolar plate assembly device.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A bipolar plate assembly device includes a base. A conveyor is fixedly installed at the top of the base, and a plurality of tooling plates for loading bipolar plates are evenly and fixedly installed at equal intervals on the moving end of the conveyor. Edge clamping and fixing mechanisms are installed on the four sides of the tooling plate. The edge clamping and fixing mechanism includes a side pushing component, a linkage component, and an outer pressing plate. The side pushing component is installed on the tooling plate, and multiple groups of side pushing components are provided and distributed along the length or width direction of the tooling plate; the linkage component is installed on the side pushing component, and the outer pressing plate is connected to all the linkage components. The linkage component is used to synchronously press the outer pressing plate against the bipolar plate when the side pushing component limits the bipolar plate from the side. A double-station continuous feeding mechanism is installed at the left end of the base, and the double-station continuous feeding mechanism is used to stack two single plates on each tooling plate. Two groups of close welding mechanisms are sequentially installed at the right end of the base along the conveying direction of the tooling plate, and the two groups of close welding mechanisms are used to perform welding operations on two groups of opposite sides of the bipolar plate step by step.

[0007] Further, the side pushing assembly includes a fixed block, an L-shaped movable block, a first spring, a side pushing block, and a second spring. The fixed block is fixedly connected to the tooling plate. The L-shaped movable block is located inside the fixed block. The L-shaped movable block is horizontally slidably mounted on the tooling plate through a limiting structure. A first spring is fixedly installed between the fixed block and the L-shaped movable block. The side pushing block is located on the side of the L-shaped movable block away from the fixed block, and the side pushing block is horizontally slidably mounted on the L-shaped movable block through a limiting structure. A second spring is fixedly installed between the side pushing block and the L-shaped movable block.

[0008] Further, the linkage assembly includes a connecting block and a sliding pin. The connecting block is vertically slidably mounted on the L-shaped movable block through a limiting structure. An inclined groove is formed in the connecting block. A sliding pin which is fixedly installed at the upper end of the side pushing block is in limiting sliding connection with the inclined groove. The connecting blocks are both fixedly connected to the outer pressing plate.

[0009] Further, the close welding mechanism includes a support frame, a welding assembly, and a driving pressing assembly. The support frame is fixedly installed on the base platform and is erected above the conveyor. Two groups of welding assemblies are symmetrically installed on both sides of the support frame, and two groups of driving pressing assemblies are also symmetrically installed on both sides of the support frame.

[0010] Further, the driving pressing assembly includes a downward pressing cylinder, an inner pressing plate, an upper inclined block, and a lower inclined block. The downward pressing cylinder is fixedly connected to the support frame. The output end of the downward pressing cylinder is fixedly connected to the inner pressing plate. A welding space for the welding assembly to work is formed between the inner pressing plate and the outer pressing plate. L-shaped plates are fixedly installed at both ends of the inner pressing plate, and upper inclined blocks are fixedly installed at the extending ends of the L-shaped plates. Lower inclined blocks which are in one-to-one correspondence and cooperate with the upper inclined blocks in sliding are fixedly installed at the ends of the outer pressing plates of two adjacent edge clamping and fixing mechanisms.

[0011] Further, the outer pressing plate and the inner pressing plate are hollow, and a plurality of air permeable grooves are formed at one ends of the two which are close to each other.

[0012] Further, the double-station continuous feeding mechanism includes a continuous feeding assembly and a double-station material shifting assembly. Two groups of continuous feeding assemblies are distributed on both sides of the conveyor and are respectively used for supplying single-pole plates. The double-station material shifting assembly is distributed above the conveyor. The double-station material shifting assembly is used for alternately taking materials from the two groups of continuous feeding assemblies to stack two single-pole plates on each tooling plate.

[0013] Further, the continuous feeding assembly includes a bottom plate, a limiting rod, and a servo lifting assembly. The bottom plates are distributed on the sides of the conveyor. The servo lifting assembly is installed on the bottom plate. The servo lifting assembly is used for supporting and lifting the single-pole plate. Four limiting rods are detachably installed on the bottom plate through fasteners and penetrate through the moving end of the servo lifting assembly, and are respectively used for limiting the four sides of the single-pole plate.

[0014] Further, the duplex material transfer assembly includes a horizontal movement assembly and a suction cup gripper assembly. The horizontal movement assembly has two moving ends, and the suction cup gripper assemblies are respectively installed on the two moving ends of the horizontal movement assembly.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. After the tooling plate loaded with the bipolar plate moves to the lower part of the support frame, the inner pressing plate presses and fixes the bipolar plate on the tooling plate, and the bipolar plate is clamped and fixed by the cooperation of the side push block and the outer pressing plate. The two sides of the part to be welded of the single plate are pressed by the cooperation of the outer pressing plate and the inner pressing plate, so that the two single plates are closely attached. Subsequently, the welding head moves down to the welding space between the outer pressing plate and the inner pressing plate to perform welding operations on the two stacked single plates, effectively improving the welding quality, and realizing distributed welding operations on the two pairs of side edges of the plate by the cooperation of two sets of close welding mechanisms, improving the welding efficiency.

[0016] 2. The single plates are stacked on the lifting plate, and the vacuum suction cup grabs the top single plate and transfers it to the tooling plate. And the two vacuum suction cups always operate alternately. When one single plate is performing the operation of picking up the single plate, the other single plate is performing the operation of placing the single plate. And every time a single plate is taken away, the servo push rod drives the lifting plate to rise by a distance equal to the height of a single plate, so that the top single plate is always at the same height, thereby realizing the continuous feeding operation of the single plates. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Isometric view of a bipolar plate assembly device of the present invention Figure 1 ; Figure 2 Is the front view of a bipolar plate assembly device of the present invention; Figure 3 Is the left view of a bipolar plate assembly device of the present invention; Figure 4 Is the isometric view of the double-station continuous feeding mechanism of the present invention; Figure 5 Is the isometric view of the edge clamping and fixing mechanism of the present invention; Figure 6 Is Figure 5 The enlarged view at A in; Figure 7 Is the isometric view of the close welding mechanism of the present invention Figure 1 ; Figure 8 The three-dimensional view of the close welding mechanism of the present invention Figure 2 .

[0019] The reference numerals in the figure respectively represent: 1. Base; 2. Conveyor; 3. Tooling plate; 4. Double-station continuous feeding mechanism; 41. Continuous feeding component; 411. Bottom plate; 412. Guide rod; 413. Servo push rod; 414. Limit rod; 415. Lifting plate; 42. Double-station material shifting component; 421. Truss; 422. Horizontal material shifting cylinder; 423. Linear guide rail; 424. Moving plate; 425. Vertical material taking cylinder; 426. Mounting frame; 427. Vacuum suction cup; 5. Edge clamping and fixing mechanism; 51. Fixed block; 52. L-shaped movable block; 53. First spring; 54. Connecting block; 55. Side push block; 56. Second spring; 57. Sliding pin; 58. Oblique groove; 59. Outer pressure plate; 6. Close welding mechanism; 61. Support frame; 62. Welding component; 621. Linear module; 622. Horizontal moving cylinder; 623. Vertical moving cylinder; 624. Welding head; 63. Driving and pressing component; 631. Pressing cylinder; 632. Inner pressure plate; 633. Upper inclined block; 634. Lower inclined block; 635. L-shaped plate; 7. Bipolar plate. Specific embodiments

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] The "left", "right", "front", "rear", "upper" and "lower" mentioned in the following description are oriented in the perspective direction of the front view.

[0022] Embodiment 1: In some embodiments, please refer to the accompanying drawings of the specification Figures 1 - 8 , a bipolar plate assembly device, including a base 1; A conveyor 2 is fixedly installed at the top end of the base 1, and a plurality of tooling plates 3 for loading bipolar plates 7 are fixedly installed at equal intervals on the moving end of the conveyor 2; the conveyor 2 can adopt a double-row belt conveyor, a double-row chain conveyor, etc.; Edge clamping and fixing mechanisms 5 are installed on all four sides of the tooling plate 3. The edge clamping and fixing mechanism 5 includes a side-pushing component, a linkage component, and an outer pressing plate 59. The side-pushing component is installed on the tooling plate 3. There are multiple groups of side-pushing components distributed along the length or width direction of the tooling plate 3. A linkage component is installed on the side-pushing component. The outer pressing plate 59 is connected to all linkage components. The linkage component is used to synchronously press the outer pressing plate 59 against the bipolar plate 7 when the side-pushing component limits the bipolar plate 7 from the side. A double-station continuous feeding mechanism 4 is installed at the left end of the base 1. The double-station continuous feeding mechanism 4 is used to stack two single plates on each tooling plate 3. Two groups of close welding mechanisms 6 are installed in sequence along the conveying direction of the tooling plate 3 at the right end of the base 1. The two groups of close welding mechanisms 6 are used to perform welding operations on two pairs of side edges of the bipolar plate 7 step by step.

[0023] In the present invention, the double-station continuous feeding mechanism 4 stacks two single plates on each tooling plate 3. The conveyor 2 drives the tooling plate 3 to move to the right. Through the cooperation of two groups of close welding mechanisms 6, distributed welding operations on two pairs of side edges of the plates are realized, enabling two single plates to be welded into a bipolar plate 7, achieving continuous and batch welding operations on the bipolar plate 7. During the welding process, the bipolar plate 7 is clamped and limited from the side by the side-pushing components of the edge clamping and fixing mechanisms 5 on its four side edges. At the same time, the side-pushing components drive the outer pressing plate 59 to move downward through the linkage components, pressing the bipolar plate 7 tightly on the tooling plate 3, thereby achieving an all-round clamping and fixing effect on the bipolar plate 7, effectively improving the accuracy of the welding operation on the bipolar plate 7 and increasing the yield rate.

[0024] Please refer to Figure 5 and Figure 6 The side-pushing component includes a fixed block 51, an L-shaped movable block 52, a first spring 53, a side-pushing block 55, and a second spring 56. The fixed block 51 is fixedly connected to the tooling plate 3. The L-shaped movable block 52 is located inside the fixed block 51. The L-shaped movable block 52 is horizontally slidably installed on the tooling plate 3 through a limiting structure. A first spring 53 is fixedly installed between the fixed block 51 and the L-shaped movable block 52. The side-pushing block 55 is located on the side of the L-shaped movable block 52 away from the fixed block 51, and the side-pushing block 55 is horizontally slidably installed on the L-shaped movable block 52 through a limiting structure. A second spring 56 is fixedly installed between the side-pushing block 55 and the L-shaped movable block 52. The linkage component includes a connecting block 54 and a sliding pin 57. The connecting block 54 is vertically slidably installed on the L-shaped movable block 52 through a limiting structure. An inclined slot 58 is formed on the connecting block 54. A sliding pin 57 that is limit slidably connected to the inclined slot 58 is fixedly installed at the upper end of the side-pushing block 55. The connecting blocks 54 are all fixedly connected to the outer pressing plate 59. The limiting structure can adopt a dovetail groove and dovetail block limiting structure. In the present invention, the L-shaped movable block 52 is pushed towards the bipolar plate 7. When the side push block 55 contacts the side of the bipolar plate 7, the side push block 55 is pushed towards the L-shaped movable block 52. Under the cooperation of the sliding pin 57 and the inclined slot 58, the connecting block 54 moves downward synchronously, and then the outer pressing plate 59 presses downward synchronously. Finally, the bipolar plate 7 is clamped and limited from the side by the side push blocks 55 of the edge clamping and fixing mechanism 5 on its four sides, and at the same time, it is pressed on the tooling plate 3 by the outer pressing plates 59 of the edge clamping and fixing mechanism 5 on its four side edges, thereby realizing the all-round clamping and fixing of the bipolar plate 7.

[0025] Please refer to Figure 7 and Figure 8 , the close welding mechanism 6 includes a support frame 61, a welding assembly 62 and a driving and pressing assembly 63. The support frame 61 is fixedly installed on the base table 1 and is erected above the conveyor 2. Two groups of welding assemblies 62 are symmetrically installed on both sides of the support frame 61, and two driving and pressing assemblies 63 are also symmetrically installed on both sides of the support frame 61; The driving and pressing assembly 63 includes a downward pressing cylinder 631, an inner pressing plate 632, an upper inclined block 633 and a lower inclined block 634. The downward pressing cylinder 631 is fixedly connected to the support frame 61, and the output end of the downward pressing cylinder 631 is fixedly connected to the inner pressing plate 632. A welding space for the welding assembly 62 to work is formed between the inner pressing plate 632 and the outer pressing plate 59; L-shaped plates 635 are fixedly installed at both ends of the inner pressing plate 632, and upper inclined blocks 633 are fixedly installed at the extending ends of the L-shaped plates 635; Lower inclined blocks 634 corresponding to and cooperating with the upper inclined blocks 633 are fixedly installed at the ends of the outer pressing plates 59 of two adjacent edge clamping and fixing mechanisms 5; The welding assembly 62 includes a linear module 621, a horizontal moving cylinder 622, a vertical moving cylinder 623 and a welding head 624. The linear module 621 is fixedly connected to the support frame 61, a horizontal moving cylinder 622 is fixedly installed at the moving end of the linear module 621, a vertical moving cylinder 623 is fixedly installed at the output end of the horizontal moving cylinder 622, and a welding head 624 is fixedly installed at the output end of the vertical moving cylinder 623; In the present invention, after the tooling plate 3 loads the bipolar plate 7 and moves it below the support frame 61, the downward pressing cylinder 631 drives the inner pressing plate 632 to move vertically downward, so that the inner pressing plate 632 presses and fixes the bipolar plate 7 on the tooling plate 3. During the downward movement of the inner pressing plate 632, the L-shaped movable block 52 is moved closer to the bipolar plate 7 through the cooperation of the upper inclined block 633 and the lower inclined block 634, so that the bipolar plate 7 is clamped and fixed by the cooperation of the side push block 55 and the outer pressing plate 59. The two sides of the part of the single plate to be welded are pressed tightly by the cooperation of the outer pressing plate 59 and the inner pressing plate 632, so that the two single plates are closely attached. Subsequently, the welding head 624 moves downward to the welding space between the outer pressing plate 59 and the inner pressing plate 632 to perform welding operations on the two stacked single plates, thereby effectively improving the welding quality.

[0026] The outer pressing plate 59 and the inner pressing plate 632 are hollow. A plurality of air permeation grooves are provided at one end of each of them close to each other. The outer pressing plate 59 and the inner pressing plate 632 are respectively connected to the air inlet end and the air outlet end of the blowing and suction machine through pipelines, so that unidirectional flowing air is formed in the welding space, which is beneficial to cooling the single-pole plate and discharging the welding slag. Inert gas can also be introduced into the welding part of the single-pole plate through the cooperation of the outer pressing plate 59 and the inner pressing plate 632 to protect the single-pole plate.

[0027] Please refer to Figure 4 , the double-station continuous feeding mechanism 4 includes a continuous feeding component 41 and a double-station material shifting component 42. Two groups of continuous feeding components 41 are distributed on both sides of the conveyor 2 and are respectively used for supplying single-pole plates. The double-station material shifting component 42 is distributed on the upper side of the conveyor 2. The double-station material shifting component 42 is used for alternately taking materials from the two groups of continuous feeding components 41 to stack two single-pole plates on each tooling plate 3; The continuous feeding component 41 includes a bottom plate 411, a limiting rod 414 and a servo lifting component. The bottom plate 411 is distributed on the side of the conveyor 2. The servo lifting component is installed on the bottom plate 411 and is used for supporting and lifting the single-pole plate; Four limiting rods 414 are detachably installed on the bottom plate 411 through fasteners and penetrate through the moving end of the servo lifting component, and are respectively used for limiting the four sides of the single-pole plate; The fastener can adopt a bolt; The servo lifting component includes a guide rod 412, a servo push rod 413 and a lifting plate 415. A plurality of guide rods 412 are fixedly installed on the bottom plate 411. The lifting plate 415 is in limiting sliding connection with the guide rod 412; The servo push rod 413 is fixedly connected to the bottom plate 411, and the output end of the servo push rod 413 is fixedly connected to the lower end of the lifting plate 415; An avoidance groove for cooperating with the limiting rod 414 is provided on the lifting plate 415; A separator can be arranged on the lifting plate 415 to prevent the plates from sticking when taking materials; The double-station material shifting component 42 includes a horizontal moving component and a suction cup gripper component. The horizontal moving component has two moving ends, and suction cup gripper components are respectively installed at the two moving ends of the horizontal moving component; The horizontal moving component includes a truss 421, a horizontal material shifting cylinder 422, a linear guide rail 423 and a moving plate 424. The truss 421 is erected on the upper side of the conveyor 2. A horizontal material shifting cylinder 422 and a linear guide rail 423 are fixedly installed on the truss 421. Two moving plates 424 are respectively in limiting sliding connection with the linear guide rail 423 through sliders, and a connecting plate for synchronously moving the two along the linear guide rail 423 is fixedly installed between the two moving plates 424. The output end of the horizontal material shifting cylinder 422 is fixedly connected to any one of the moving plates 424; A suction cup gripper component is installed on the moving plate 424; The suction cup gripper assembly includes a vertical material-taking cylinder 425, a mounting bracket 426, and vacuum suction cups 427. The vertical material-taking cylinder 425 is fixedly connected to the moving plate 424. The output end of the vertical material-taking cylinder 425 is fixedly installed with a mounting bracket 426, and a plurality of vacuum suction cups 427 are installed on the mounting bracket 426; In the present invention, the single-pole plates are stacked on the lifting plate 415. The four sides of the single-pole plates are respectively limited by four limiting rods 414. The servo push rod 413 drives the lifting plate 415 to move vertically upward along the guide rod 412, so that the highest single-pole plate is located at a set height. The highest single-pole plate is grabbed by the vacuum suction cups 427 and transferred to the tooling plate 3. And the two vacuum suction cups 427 always operate alternately. When one single-pole plate is performing the operation of taking the single-pole plate, the other single-pole plate is performing the operation of placing the single-pole plate. And every time a single-pole plate is taken away, the servo push rod 413 drives the lifting plate 415 to rise by a distance equal to the height of a single-pole plate, so that the highest single-pole plate is always at the same height, thereby realizing the continuous feeding operation of the single-pole plates.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bipolar plate assembly device, comprising a base (1), characterized in that: A conveyor (2) is fixedly installed at the top of the base (1), and a plurality of tooling plates (3) for loading bipolar plates (7) are fixedly installed at equal intervals on the moving end of the conveyor (2); Edge clamping and fixing mechanisms (5) are installed on the four sides of the tooling plate (3). The edge clamping and fixing mechanism (5) includes a side pushing component, a linkage component, and an outer pressing plate (59). The side pushing component is installed on the tooling plate (3), and multiple groups of side pushing components are provided and distributed along the length or width direction of the tooling plate (3); a linkage component is installed on the side pushing component, and the outer pressing plate (59) is connected to all the linkage components. The linkage component is used to make the outer pressing plate (59) press against the bipolar plate (7) synchronously when the side pushing component limits the bipolar plate (7) from the side; A double-station continuous feeding mechanism (4) is installed at the left end of the base (1), and the double-station continuous feeding mechanism (4) is used to stack two single plates on each tooling plate (3); Two groups of close welding mechanisms (6) are installed in sequence along the conveying direction of the tooling plate (3) at the right end of the base (1), and the two groups of close welding mechanisms (6) are used to perform welding operations on two sets of opposite sides of the bipolar plate (7) step by step.

2. The bipolar plate assembly device according to claim 1, characterized in that, The side pushing component includes a fixed block (51), an L-shaped movable block (52), a first spring (53), a side pushing block (55), and a second spring (56). The fixed block (51) is fixedly connected to the tooling plate (3), the L-shaped movable block (52) is located inside the fixed block (51), and the L-shaped movable block (52) is horizontally slidably installed on the tooling plate (3) through a limiting structure. A first spring (53) is fixedly installed between the fixed block (51) and the L-shaped movable block (52); the side pushing block (55) is located on the side of the L-shaped movable block (52) away from the fixed block (51), and the side pushing block (55) is horizontally slidably installed on the L-shaped movable block (52) through a limiting structure; a second spring (56) is fixedly installed between the side pushing block (55) and the L-shaped movable block (52).

3. The bipolar plate assembly device according to claim 2, wherein, The linkage component includes a connecting block (54) and a sliding pin (57). The connecting block (54) is vertically slidably installed on the L-shaped movable block (52) through a limiting structure. An inclined groove (58) is formed on the connecting block (54), and a sliding pin (57) which is limited and slidably connected to the inclined groove (58) is fixedly installed at the upper end of the side pushing block (55); the connecting blocks (54) are all fixedly connected to the outer pressing plate (59).

4. The bipolar plate assembly device according to claim 3, wherein, The close welding mechanism (6) includes a support frame (61), a welding component (62), and a driving and pressing component (63). The support frame (61) is fixedly installed on the base (1) and is erected above the conveyor (2). Two groups of welding components (62) are symmetrically installed on both sides of the support frame (61), and two groups of driving and pressing components (63) are also symmetrically installed on both sides of the support frame (61).

5. The bipolar plate assembly device according to claim 4, characterized in that, The driving and pressing component (63) includes a downward pressing cylinder (631), an inner pressing plate (632), an upper inclined block (633) and a lower inclined block (634). The downward pressing cylinder (631) is fixedly connected to the support frame (61), the output end of the downward pressing cylinder (631) is fixedly connected to the inner pressing plate (632), and a welding space for the operation of the welding component (62) is formed between the inner pressing plate (632) and the outer pressing plate (59); L-shaped plates (635) are fixedly installed at both ends of the inner pressing plate (632), and the extended ends of the L-shaped plates (635) are fixedly installed with upper inclined blocks (633); lower inclined blocks (634) which correspond to and cooperate with the upper inclined blocks (633) in a one-to-one manner are fixedly installed at the ends of the outer pressing plates (59) of two adjacent edge clamping and fixing mechanisms (5).

6. The bipolar plate assembly device according to claim 5, characterized in that, The outer pressing plate (59) and the inner pressing plate (632) are hollow, and a plurality of air permeable grooves are formed at one end of each of them close to each other.

7. The bipolar plate assembly device according to claim 1, characterized in that, The double-station continuous feeding mechanism (4) includes a continuous feeding component (41) and a double-station material shifting component (42). Two groups of continuous feeding components (41) are distributed on both sides of the conveyor (2) and are respectively used for feeding single-pole plates. The double-station material shifting component (42) is distributed on the upper side of the conveyor (2), and the double-station material shifting component (42) is used for alternately taking materials from the two groups of continuous feeding components (41) to stack two single-pole plates on each tooling plate (3).

8. The bipolar plate assembly device according to claim 7, wherein The continuous feeding component (41) includes a bottom plate (411), a limiting rod (414) and a servo lifting component. The bottom plate (411) is distributed on the side of the conveyor (2), the servo lifting component is installed on the bottom plate (411), and the servo lifting component is used for supporting and lifting the single-pole plate; four limiting rods (414) are detachably installed on the bottom plate (411) through fasteners and penetrate through the moving end of the servo lifting component, and are respectively used for limiting the four sides of the single-pole plate.

9. The bipolar plate assembly device according to claim 7, wherein, The double-station material shifting component (42) includes a horizontal moving component and a suction cup gripper component. The horizontal moving component has two moving ends, and suction cup gripper components are respectively installed at the two moving ends of the horizontal moving component.

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