CN218193143U

CN218193143U - Laser welding machine for battery bipolar plate

Info

Publication number: CN218193143U
Application number: CN202222448175.1U
Authority: CN
Inventors: 李欣明
Original assignee: Suzhou Jinghai Laser Intelligent Technology Co ltd
Current assignee: Suzhou Jinghai Laser Intelligent Technology Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-03
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a laser-beam welding machine for battery bipolar plate, include: a positioning assembly; the positioning assembly is arranged on the moving assembly through the sliding plate, and the moving assembly drives the positioning assembly to move and position; the laser shooting head is simultaneously installed on the sliding plate, and the sliding plate drives the laser shooting head to move, so that welding can be carried out after the positioning assembly is positioned. The device utilizes locating component to snatch the laser welding orbit, and the removal through locating component guides laser to penetrate first removal welding, and the relative position that locating component penetrated the head with the laser is unchangeable, and the bipolar plate welding to locating component below is more accurate, no matter is all effective to welding longer or shorter bipolar plate, makes the precision of welding orbit promote.

Description

Laser welding machine for battery bipolar plate

Technical Field

The utility model relates to a fuel cell production field especially relates to a laser-beam welding machine for battery bipolar plate.

Background

A fuel cell is a device that directly converts chemical energy of fuel into electric energy, and is also called an electrochemical generator. It is the fourth power generation technology after hydroelectric power generation, thermal power generation and atomic power generation, and a Bipolar plate (BPP) is a core component of a fuel cell, and mainly functions to support a Membrane Electrode (MEA), provide hydrogen, oxygen and coolant fluid channels, separate hydrogen and oxygen, collect electrons, and conduct heat. The packaging of the existing bipolar plate basically adopts a track type laser welding mode, a laser head is controlled to move and weld by a track type welding mode through a preset welding track in the working process, however, errors exist in the output track of the bipolar plate with a large size after system numerical value conversion, the error is large when the size is large, the welding precision of the bipolar plate is insufficient, meanwhile, the gap of a welding bead is very small, the probability of welding deviation is large, and the yield of the bipolar plate is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a laser welding machine for a battery bipolar plate.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a laser welder for battery bipolar plates comprising:

a positioning assembly;

the positioning assembly is arranged on the moving assembly through a sliding plate and drives the positioning assembly to move and position through the moving assembly;

the laser shooting head is simultaneously installed on the sliding plate, and the sliding plate drives the laser shooting head to move, so that welding can be carried out after the positioning assembly is positioned.

As a further description of the above technical solution: the moving assembly comprises guide rails extending along the X axis, the Y axis and the Z axis respectively, a first guide rail is arranged along the X axis, a second guide rail is arranged along the Y axis, a third guide rail is arranged along the Z axis, and the moving assembly is installed on the rack through a supporting frame.

As a further description of the above technical solution: the rack is provided with a plurality of support frames, the top of each support frame is used for mounting the second guide rails, and the number of the second guide rails is two.

As a further description of the above technical solution: two ends of the first guide rail are respectively arranged on the two second guide rails through connecting blocks and move on the second guide rails; a third guide rail is arranged on the first guide rail through a connecting block, so that the third guide rail moves along the direction of the first guide rail; the third guide rail is connected with the sliding plate through a sliding block, so that the positioning assembly can move on the third guide rail.

As a further description of the above technical solution: the frame is provided with a conveying device, and the conveying device is provided with a bottom plate for conveying the bipolar plates.

As a further description of the above technical solution: one side of the laser shooting head is matched with the fastening clamp through a plurality of connecting rods and is connected with the dust extraction device.

As a further description of the above technical solution: and the sliding plate is far away from one side of the laser shooting head and is provided with the positioning assembly.

As a further description of the above technical solution: the guide rail and the sliding plate are connected with a driving device through a conducting wire, and the driving device controls the movement between the guide rail and the sliding block and the movement between the guide rail and the sliding block.

As a further description of the above technical solution: a protective cover is arranged above the rack.

As a further description of the above technical solution: and a control device is installed on one side of the protective cover.

The technical scheme has the following advantages or beneficial effects:

1. utilize locating component to snatch the laser welding orbit, the removal through locating component guides laser to penetrate first removal welding, and the relative position that locating component and laser penetrated the head is unchangeable, and it is more accurate to the bipolar plate welding of locating component below, no matter weld all effectively to longer or shorter bipolar plate, makes the precision of welding orbit promote.

Drawings

Fig. 1 is a perspective view of a laser welding machine provided by the present invention;

FIG. 2 is a schematic structural view of a laser welding machine according to the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a schematic view of a partial structure of a laser welding machine according to the present invention;

fig. 5 is an enlarged cross-sectional view of the delivery device at B in fig. 4.

Illustration of the drawings:

1. a positioning assembly; 2. a slide plate; 3. a laser shooting head; 4. a first guide rail; 5. a second guide rail; 6. a third guide rail; 7. a frame; 8. a support frame; 9. a base plate; 10. a bipolar plate; 11. a dust extraction device; 12. a protective cover; 13. and a control device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the present invention provides an embodiment: a laser welder for battery bipolar plates comprising: a positioning assembly 1; the positioning component 1 is arranged on the moving component through the sliding plate 2, and the moving component drives the positioning component to move and position; install laser simultaneously and penetrate head 3 on slide 2, drive laser through slide 2 and penetrate head 3 and remove, can weld after locating component 1 location.

The positioning assembly 1 and the laser head 3 are fixedly arranged on the sliding plate 2 and connected with the moving assembly, and the moving assembly is controlled to move after the positioning assembly 1 carries out position detection, so that the laser head 3 carries out welding operation on the positioned position information.

There are track formula laser welding mode and galvanometer formula welding mode in the laser welding, in this embodiment, locating component 1 is the vision galvanometer, specifically selects to be CCD monitoring devices that shoots, shoots the monitoring through the vision camera, and on picture information transmission after will shooing was given controlling means 13, moves locating component 1 through removal subassembly control, carries out welding operation to bipolar plate 10.

The moving assembly comprises guide rails extending along the X-axis direction, the Y-axis direction and the Z-axis direction respectively, a first guide rail 4 is arranged along the X-axis direction, a second guide rail 5 is arranged along the Y-axis direction, a third guide rail 6 is arranged along the Z-axis direction, and the moving assembly is installed on the rack 7 through a supporting frame 8. A plurality of supporting frames 8 are arranged on the frame 7, the tops of the supporting frames 8 are used for mounting the second guide rails 5, and the number of the second guide rails 5 is two.

In this embodiment, the number of the supporting frames 8 is four, the supporting frames are vertically installed on the upper plane of the rack 7, the number of the second guide rails 5 is two, the second guide rails are installed on the top of the supporting frames 8 in parallel, and two ends of the second guide rails 5 are respectively installed on the upper surface of the supporting frames 8 through bolts.

Two ends of the first guide rail 4 are respectively arranged on the two second guide rails 5 through connecting blocks and move on the second guide rails 5; a third guide rail 6 is arranged on the first guide rail 4 through a connecting block, so that the third guide rail 6 moves along the direction of the first guide rail 4; the third guide rail 6 is connected with the sliding plate 2 through a sliding block, so that the positioning assembly 1 can move on the third guide rail 6.

Referring to fig. 3, the second guide rail 5 is a double-layer structure, the connecting block is arranged in the middle of the second guide rail 5, a groove is formed in the upper surface of the connecting block, the connecting block is matched with the inner upper surface of the second guide rail 5, two sides of the connecting block extend outwards and are connected with the bottom of one side of the first guide rail 4, and the two second guide rails 5 are identical in structure and are respectively connected with the bottoms of two sides of the first guide rail 4.

The frame 7 is provided with a conveying device, and the conveying device is provided with a bottom plate 9 for conveying the bipolar plate 10. The conveying direction of the conveying device is parallel to the conveying direction of the second guide rail 5, so that the conveying directions of the first guide rail 4 and the bipolar plate 10 are the same, and the welding operation is convenient.

One side of the laser shooting head 3 is matched with the fastening clamp through a plurality of connecting rods and is connected with the dust extraction device 11. Through the cooperation of a plurality of connecting rods and fastening clamp, make the dust extraction device 11 can carry out the regulation of height and angle, connecting rod and fastening clamp cooperation realize the rigidity through static friction, and the dust extraction device 11 can take out the smoke and dust that produces when laser welding, attaches the smoke and dust volume on bipolar plate 10 during the reduction welding, improves bipolar plate 10's clean rate.

The side of the sliding plate 2, which is far away from the laser shooting head 3, is provided with a positioning assembly 1; in this embodiment, locating component 1 and laser shooting head 3 set up in the both sides of slide 2, after locating component 1 carried out position monitoring, through the location guide laser shooting head 3 that shoots welding, adopt the vision mode of shaking the mirror to carry out high-speed welding, the device has certain commonality, because in shaking the mirror within range, motion is stopped, makes the welded precision higher.

The guide rail and the sliding plate 2 are connected with a driving device through a conducting wire, and the movement between the guide rail and the sliding block are controlled through the driving device; in this embodiment, the connecting block can be a cylinder, and the driving device is an air pump, can be arranged below the frame 7, and is connected with the cylinder through a pipeline, and the position moving and positioning of the control positioning assembly 1 can be realized by pushing the cylinder to move on the guide rail.

A protective cover 12 is arranged above the frame 7; a control device 13 is mounted on one side of the shield 12. The protective cover 13 is arranged to protect the device, and simultaneously, the entering of external dust can be reduced, so that the bipolar plate 10 can keep a better clean surface in the welding process, and the surface of the bipolar plate 10 is prevented from being polluted during welding.

The working principle is as follows: after the bipolar plate 10 is placed to the conveying device from the last process in a manual or automatic mode, a start button is pressed, the bipolar plate 10 and the carrier are automatically transplanted below the laser emitter 3, the fine positioning mechanism can perform secondary positioning on the bipolar plate 10 and the carrier, signals are transmitted to the positioning assembly 1 after the secondary positioning is finished, a vision camera shoots local parts of the bipolar plate 10 needing to be welded, and mark points on gaps needing to be welded are grabbed. After the visual shooting, transmitting a signal to the control device 13, and enabling the laser according to preset welding process parameters; the movable assembly can accurately calculate the position of a welding seam according to visual positioning, laser welding is guided through the positioning assembly 1, welding accuracy and yield are greatly improved, and blanking of the welded bipolar plate 10 is achieved manually or automatically.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A laser welding machine for battery bipolar plates is characterized in that: the method comprises the following steps:

a moving assembly;

a positioning assembly (1);

the positioning assembly (1) is arranged on the moving assembly through a sliding plate (2), and the moving assembly drives the positioning assembly (1) to move and position;

install laser on slide (2) and penetrate head (3), through slide (2) drive laser penetrates head (3) and removes locating component (1) location back can weld.

2. A laser welder for battery bipolar plates according to claim 1, characterized in that: the moving assembly comprises guide rails extending along the X axis, the Y axis and the Z axis respectively, a first guide rail (4) is arranged along the X axis, a second guide rail (5) is arranged along the Y axis, a third guide rail (6) is arranged along the Z axis, and the moving assembly is installed on the rack (7) through a supporting frame (8).

3. A laser welder for battery bipolar plates according to claim 2, characterized in that: the support frame (8) is arranged on the rack (7), the top of the support frame (8) is used for mounting the second guide rails (5), and the number of the second guide rails (5) is two.

4. A laser welder for battery bipolar plates, according to claim 2, characterized in that: two ends of the first guide rail (4) are respectively arranged on the two second guide rails (5) through connecting blocks and move on the second guide rails (5); a third guide rail (6) is arranged on the first guide rail (4) through a connecting block, so that the third guide rail (6) moves along the direction of the first guide rail (4); the third guide rail (6) is connected with the sliding plate (2) through a sliding block, so that the positioning assembly (1) can move on the third guide rail (6).

5. A laser welder for battery bipolar plates according to claim 3, characterized in that: the frame (7) is provided with a conveying device, and the conveying device is provided with a bottom plate (9) for conveying the bipolar plates (10).

6. A laser welder for battery bipolar plates according to claim 1, characterized in that: one side of the laser shooting head (3) is matched with the fastening clamp through a plurality of connecting rods and is connected with the dust pumping device (11).

7. A laser welder for battery bipolar plates according to claim 1, characterized in that: and the positioning assembly (1) is arranged on one side of the sliding plate (2) far away from the laser shooting head (3).

8. A laser welder for battery bipolar plates, according to claim 2, characterized in that: the guide rail and the sliding plate (2) are connected with a driving device through a lead, and the driving device controls the movement between the guide rail and the movement between the guide rail and the sliding block.

9. A laser welder for battery bipolar plates according to claim 2, characterized in that: a protective cover (12) is arranged above the frame (7).

10. A laser welder for battery bipolar plates, according to claim 9, characterized in that: and a control device (13) is arranged on one side of the protective cover (12).