Laser welding equipment for large CTP (computer to plate) battery wrapping piece

Abstract

The utility model relates to laser welding equipment for large CTP (computer to plate) battery chips, which comprises a lower frame component, a three-axis portal frame and a vibration lens component, the three-axis portal frame is mounted on the lower frame component, and the vibration lens component is mounted on the three-axis portal frame; a roller conveying line is arranged on the right side of the lower rack body, and a product positioning tray assembly is placed on the roller conveying line. The large CTP battery pack large-breadth chip laser welding machine can be suitable for large CTP battery pack large-breadth chip laser welding, the product positioning tray assembly carries out transportation through the roller conveying line and the friction wheel conveying mechanism, and the large CTP battery pack large-breadth chip laser welding machine is high in load, high in efficiency, low in cost, low in failure rate and easy to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack processing related technical field especially, it relates to a large -scale CTP battery pack bar piece laser welding equipment. BACKGROUND

[0002] New energy battery pack specification is bigger and bigger, more prominent large -scale CTP battery pack size can reach width 1.5 meters, length 2.3 meters, in pack assembly stage, aluminium bar welding procedure, tray belt product adopts through type structure, tray is in position and needs positioning, tray size is relatively big, weight is relatively big, current commonly used structure is large -scale jacking positioning mechanism, this mechanism cost is high, influence rhythm, positioning mechanism wide surface big load high failure rate, later transmission spare maintenance is very complex.

[0003] In view of the above-mentioned defects, the present design person actively researches and innovates, in order to create a large -scale CTP battery pack bar piece laser welding equipment, so that it has more industrial utilization value. CONTENT OF THE UTILITY MODEL

[0004] To solve any one of the above technical problems, the utility model aims at providing a large -scale CTP battery pack bar piece laser welding equipment.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] Large -scale CTP battery pack bar piece laser welding equipment, including lower frame assembly, three -axis gantry and galvanometer head assembly, three -axis gantry is installed on the lower frame assembly, and the galvanometer head assembly is installed on the three -axis gantry;

[0007] Lower frame assembly includes lower frame body, a plurality of foot screws support are installed on the bottom of lower frame body, friction wheel conveying mechanism that runs along left and right directions is installed on the front and rear sides of the inner side of lower frame body, and the friction wheel conveying mechanism includes a plurality of friction rollers that are evenly distributed on the lower frame body along the left and right directions;

[0008] Roller conveying line is arranged at the right side of lower frame body, and product positioning tray assembly is placed on the roller conveying line;

[0009] Roller conveying line includes roller conveying frame, a plurality of rollers that run along the X -axis direction are installed on the roller conveying frame;

[0010] Product positioning tray assembly includes tray plate, four adjustable positioning blocks are installed on the middle part of tray plate, and the battery module is located on the tray plate between the four positioning blocks.

[0011] As a further improvement of the utility model, laser cooler integrated cabinet is installed on one side of lower frame body.

[0012] As a further improvement of this utility model, several wear-resistant sleeves are evenly distributed on the roller along the front-back direction.

[0013] As a further improvement of this utility model, several guide rollers are installed on both the front and rear sides of the pallet plate, and guide strips adapted to the guide rollers are installed on the roller conveyor frames on both the front and rear sides of the rollers. Several passive support wheels are evenly distributed in the left and right direction in the middle of the inner side of the lower frame body.

[0014] As a further improvement of this utility model, at least one visual addressing reference post is installed on the pallet plate, and several lifting rings are installed on the pallet plate.

[0015] As a further improvement of this utility model, at least one clamping cylinder assembly is installed near the right side of the lower frame body. The clamping cylinder assembly includes a clamping cylinder and a clamping stop that moves up and down under the drive of the clamping cylinder. A limit frame is installed near the left side of the lower frame body.

[0016] As a further improvement of this utility model, the three-axis gantry includes several columns mounted on the lower frame body, two X-axis crossbeams mounted on the columns, an X-axis linear motor module mounted on the X-axis crossbeams, the X-axis linear motor module driving the Y-axis crossbeam to move in the left and right direction, a Y-axis linear motor module mounted on the Y-axis crossbeam, and a gauging head assembly including a front pad plate and a Z-axis linear motor module, the Y-axis linear motor module driving the Z-axis linear motor module to move in the front and rear direction, and the Z-axis linear motor module driving the gauging head processing mechanism mounted on the front pad plate to move in the vertical direction.

[0017] As a further improvement of this utility model, at least one auxiliary crossbeam is installed between the two X-axis crossbeams, the Y-axis crossbeam is connected to the X-axis drag chain assembly installed on the X-axis crossbeam, the Z-axis linear motor module is connected to the Y-axis drag chain assembly installed on the Y-axis crossbeam, and the front pad is connected to the Z-axis drag chain assembly installed on the Z-axis linear motor module.

[0018] As a further improvement of this utility model, the galvanometer processing mechanism includes a galvanometer mounted on the front pad, a vision camera assembly, a laser rangefinder, a dust extraction port, a copper nozzle, and a dustproof double-layer air knife.

[0019] As a further improvement of this utility model, a slide cylinder mounted on the front pad drives the laser rangefinder to move in the front-rear direction.

[0020] By means of the above solution, this utility model has at least the following advantages:

[0021] This invention is applicable to large-format laser welding of CTP battery packs. The product positioning tray assembly is transported by a roller conveyor and a friction wheel conveyor mechanism, featuring high load capacity, high efficiency, low cost, low failure rate, and easy maintenance.

[0022] After the product positioning tray assembly of this utility model is in place, it is positioned by the limiting frame and clamping cylinder assembly, which is simple to operate and convenient to use.

[0023] The laser rangefinder of this invention measures distances coaxially using a range sensor, a copper nozzle, and a scanning head.

[0024] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a large CTP battery pack panel laser welding equipment according to this utility model;

[0027] Figure 2 yes Figure 1 Schematic diagram of the middle and lower rack assembly;

[0028] Figure 3 yes Figure 1 Schematic diagram of the structure of a medium roller conveyor line;

[0029] Figure 4 yes Figure 1 A schematic diagram of the structure of the product positioning tray assembly;

[0030] Figure 5 yes Figure 2 A partially enlarged schematic diagram of the clamping cylinder assembly;

[0031] Figure 6 yes Figure 1 Schematic diagram of the structure of the three-axis gantry frame;

[0032] Figure 7 yes Figure 1 A schematic diagram of the structure of the mid-range lens assembly;

[0033] Figure 8This is a schematic diagram of the structure of the battery module to be processed according to this utility model.

[0034] The meanings of the labels in the figures are as follows.

[0035] 1. Lower frame assembly; 2. Three-axis gantry frame; 3. Roller conveyor line; 4. Product positioning pallet assembly; 5. Laser chiller integrated cabinet; 6. Gamma lens assembly; 7. Lower frame body; 8. Friction wheel conveyor mechanism; 9. Anchor bolt bracket; 10. Wear-resistant sleeve; 11. Roller; 12. Roller conveyor frame; 13. Guide bar; 14. Pallet plate; 15. Vision addressing reference column; 16. Lifting ring; 17. Guide roller; 18. Battery module; 19. Positioning block; 20. Friction roller; 21. Clamping cylinder assembly; 22. Passive support wheel. 22. X-axis linear motor module; 23. Column; 24. X-axis crossbeam; 25. Auxiliary crossbeam; 26. X-axis cable chain assembly; 27. Y-axis crossbeam; 28. Y-axis linear motor module; 29. ​​Y-axis cable chain assembly; 30. Front pad; 31. Vibrating head; 32. Vision camera assembly; 33. Laser rangefinder sensor; 34. Dust extraction port; 35. Copper nozzle; 36. Slide table cylinder; 37. Dustproof double-layer air knife; 38. Z-axis cable chain assembly; 39. Z-axis linear motor module; 40. Bracket welding joint; 41. Limiting bracket; 42. Detailed Implementation

[0036] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] like Figures 1 to 8 As shown, a large CTP battery pack laser welding equipment includes a lower frame assembly 1, a three-axis gantry 2, and a scanning head assembly 6. The three-axis gantry 2 is mounted on the lower frame assembly 1, and the scanning head assembly 6 is mounted on the three-axis gantry 2. A roller conveyor 3 is provided on the right side of the lower frame body 7, and a product positioning tray assembly 4 is placed on the roller conveyor 3. A laser chiller integrated cabinet 5 is installed on one side of the lower frame body 7.

[0039] 1. The lower frame assembly 1 includes a lower frame body 7. Several anchor bolt brackets 9 are installed at the bottom of the lower frame body 7. Friction wheel conveying mechanisms 8 that run in the left and right direction are installed on both the front and rear sides of the inner side of the lower frame body 7. The friction wheel conveying mechanism 8 includes several friction rollers 20 that are evenly distributed on the lower frame body 7 in the left and right direction.

[0040] At least one clamping cylinder assembly 21 is installed near the right side of the lower frame body 7. The clamping cylinder assembly 21 includes a clamping cylinder and a clamping stop that moves up and down under the drive of the clamping cylinder. A limit frame 42 is installed near the left side of the lower frame body 7.

[0041] 2. The roller conveyor line 3 includes a roller conveyor frame 12, on which several rollers 11 running along the X-axis are installed. Several wear-resistant sleeves 10 are evenly distributed on the rollers 11 along the front-back direction.

[0042] 3. The product positioning tray assembly 4 includes a tray plate 14, on which four adjustable positioning blocks 19 are installed in the middle, and the battery module 18 is located on the tray plate 14 between the four positioning blocks 19.

[0043] Several guide rollers 17 are installed on both the front and rear sides of the pallet plate 14. Guide strips 13 adapted to the guide rollers 17 are installed on the roller conveyor frame 12 on both the front and rear sides of the roller 11. Several passive support wheels 22 are evenly distributed in the left and right direction in the middle of the inner side of the lower frame body 7.

[0044] At least one visual addressing reference post 15 is installed on the pallet 14, and several lifting rings 16 are installed on the pallet 14.

[0045] 4. The three-axis gantry 2 includes several columns 24 mounted on the lower frame body 7. Two X-axis crossbeams 25 are mounted on the columns 24. An X-axis linear motor module 23 is mounted on the X-axis crossbeam 25. The X-axis linear motor module 23 drives the Y-axis crossbeam 28 to move in the left and right directions. A Y-axis linear motor module 29 is mounted on the Y-axis crossbeam 28. The diaphragm assembly 6 includes a front pad 31 and a Z-axis linear motor module 40. The Y-axis linear motor module 29 drives the Z-axis linear motor module 40 to move in the front and rear directions. The Z-axis linear motor module 40 drives the diaphragm processing mechanism mounted on the front pad 31 to move in the vertical direction.

[0046] At least one auxiliary beam 26 is installed between the two X-axis beams 25. The Y-axis beam 28 is connected to the X-axis cable chain assembly 27 installed on the X-axis beam 25. The Z-axis linear motor module 40 is connected to the Y-axis cable chain assembly 30 installed on the Y-axis beam 28. The front pad 31 is connected to the Z-axis cable chain assembly 39 installed on the Z-axis linear motor module 40.

[0047] The galvanizing lens processing mechanism includes a galvanizing lens 32, a vision camera assembly 33, a laser rangefinder 34, a dust extraction port 35, a copper nozzle 36, and a dustproof double-layer air knife 38, all mounted on a front pad 31. A slide cylinder 37 mounted on the front pad 31 drives the laser rangefinder 34 to move in the front-rear direction.

[0048] This utility model provides a device for automatically conveying and positioning large battery packs, automatically visual addressing, automatically measuring height, and automatically welding plates. The device adopts a square steel pipe welding frame, an XYZ three-axis linear motion gantry structure, and a high-precision visual camera and distance sensor installed on the Z-axis. The copper nozzle for pressing the plates is equipped with a dust suction pipe interface, and the dust extraction port is connected to an explosion-proof dust collector to prevent the smoke and dust generated during welding from polluting the environment.

[0049] 41. Welding joint of the sheet

[0050] like Figure 8 Schematic diagram of the welding position of the square-shell battery cell (i.e., welding position 41).

[0051] like Figure 1 The Z-axis vibrating lens assembly 6 is mounted on the three-axis gantry 2, the three-axis gantry 2 is mounted on the lower frame assembly 1, the roller conveyor 3 is mounted on the lower frame assembly 1, the product positioning tray 4 flows from right to left on the roller conveyor 3 into the welding area, and the laser chiller integrated cabinet 5 is placed on the side of the lower frame assembly 1.

[0052] like Figure 2 The precision friction wheel conveying mechanism 8 is installed on the machined surface of the lower frame body 7. The precision friction wheel conveying mechanism 8 includes three rows of precision support rollers. The friction rollers 20 are driven by chains. The passive support rollers 22 are not powered and serve to prevent the pallet from sinking in the middle. The upper surface of the guide rollers has a high flatness. After the pallet is in place, the blocking mechanism (i.e., the limit frame 42) stops the pallet plate 14. No lifting is required; simply fastening the pallet plate 14 allows for visual addressing, followed by welding of the mounting plate. The anchor bolt bracket 9 is connected to the lower frame body 7 to prevent equipment movement.

[0053] like Figure 3 The integral roller conveyor frame 12 has guide strips 13 on both sides, and wear-resistant sleeves 10 are installed on the rollers 11 to protect the bottom of the pallet plate 14.

[0054] like Figure 4The product positioning pallet diagram shows a visual addressing reference post 15 mounted on the pallet plate 14. The upper surface of the pallet plate 14 is insulated and has pre-drilled threaded holes to ensure maximum product compatibility. The product 18 is placed on the pallet plate 14, with positioning blocks 19 limiting its position on all four sides. Each pallet is equipped with four interchangeable blocks 19, whose installation positions are adjustable. Guide rollers 17 are installed at the four corners of the pallet plate 14 to ensure smoother, uninterrupted flow on the conveyor line.

[0055] like Figure 5 An enlarged schematic diagram of the pallet positioning mechanism shows that the pallet 14 flows on the conveyor line. After the hard limit frame 42 stops the pallet 14, the powerful clamping cylinder assembly 21 at the tail of the pallet 14 clamps the pallet 14 and has a mechanical self-locking function. It will not loosen when the power or air is cut off.

[0056] like Figure 6 The schematic diagram of the three-axis gantry shown shows six columns 24 and two X-axis crossbeams 25 connected by screws, an auxiliary crossbeam 26 connected to two columns 24 by screws, an X-axis cable chain assembly 27 connected to the X-axis crossbeam 25, an X-axis linear motor module 23 mounted on the X-axis crossbeam 25, a Y-axis linear motor module 29 mounted on the Y-axis crossbeam 28, a Y-axis cable chain assembly 30 mounted on the Y-axis crossbeam 28, and a Z-axis vibrating lens assembly 6 mounted on the Y-axis linear motor module 29.

[0057] like Figure 7 The schematic diagram of the gauging lens assembly 6 shows that the front pad 31 is mounted on the Z-axis linear motor module 40, the gauging lens 32 is mounted on the front pad 31, the vision camera assembly 33 is mounted on the front pad 31, the Z-axis cable chain assembly is mounted on the front pad 31, the dustproof double-layer air knife 38 is mounted on the gauging lens 32, the slide cylinder 37 is mounted on the front pad 31, the laser rangefinder 34 is mounted on the slide cylinder 37, which can achieve coaxial distance measurement with the copper nozzle 36. The copper nozzle 36 is mounted on the front pad 31, and the dust extraction port 35 is mounted above the copper nozzle 36. Dust extraction begins during laser welding, and the dust extraction port is connected to the workshop dust collector through a hose.

[0058] After the equipment starts, the pallet 14, carrying the product battery module 18, flows from the roller conveyor line 3 to the welding area. The limit frame 42 stops the pallet 14, and the powerful clamping cylinder assembly 21 at the tail of the pallet 14 clamps the pallet. The three-axis gantry drives the vibrating lens assembly 6 to start visual addressing. After addressing is completed, the copper nozzle 36 is automatically positioned to the welding point. The laser range sensor 34 extends to measure the upper surface of the clamped plate and automatically compensates for the laser defocus. After the distance measurement is completed, the laser range sensor 34 retracts and does not block the laser. Laser welding of the plate begins. After welding is completed, the powerful clamping cylinder assembly 21 at the tail of the pallet 14 releases the pallet, the limit frame 42 descends, and the pallet 14 flows into the next process.

[0059] The X-axis direction mentioned in this article is as follows:Figure 1 The left and right directions shown are, in this article, the Y-axis direction, as shown. Figure 1 The front-back direction shown in the figure is the Z-axis direction as described in this article. Figure 1 The up and down directions are shown in the diagram.

[0060] This invention is applicable to large-format laser welding of CTP battery packs. The product positioning tray assembly is transported via a roller conveyor and friction wheel conveyor mechanism, offering high load capacity, high efficiency, low cost, low failure rate, and easy maintenance. Once in place, the product positioning tray assembly is positioned using a limit frame and clamping cylinder assembly, making operation simple and convenient. Laser ranging is achieved through a coaxial measurement using a ranging sensor, copper nozzle, and laser scanning head.

[0061] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0062] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0063] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A large-scale CTP battery pack wafer laser welding equipment, comprising a lower frame assembly (1), a three-axis gantry (2), and a scanning head assembly (6), wherein the three-axis gantry (2) is mounted on the lower frame assembly (1), and the scanning head assembly (6) is mounted on the three-axis gantry (2); characterized in that: The lower frame assembly (1) includes a lower frame body (7), a plurality of anchor bolt brackets (9) are installed at the bottom of the lower frame body (7), and friction wheel conveying mechanisms (8) that run in the left and right direction are installed on both the front and rear sides of the inner side of the lower frame body (7). The friction wheel conveying mechanism (8) includes a plurality of friction rollers (20) that are evenly distributed in the left and right direction on the lower frame body (7). A roller conveyor line (3) is provided on the right side of the lower frame body (7), and a product positioning tray assembly (4) is placed on the roller conveyor line (3); The roller conveyor line (3) includes a roller conveyor frame (12), on which a plurality of rollers (11) running along the X-axis are installed; The product positioning tray assembly (4) includes a tray plate (14), on which four adjustable positioning blocks (19) are installed in the middle, and the battery module (18) is located on the tray plate (14) between the four positioning blocks (19).

2. The large-scale CTP battery pack wafer laser welding equipment as described in claim 1, characterized in that, A laser chiller integrated cabinet (5) is installed on one side of the lower frame body (7).

3. The large-scale CTP battery pack wafer laser welding equipment as described in claim 1, characterized in that, Several wear-resistant sleeves (10) are evenly distributed on the roller (11) along the front-back direction.

4. The large-scale CTP battery pack wafer laser welding equipment as described in claim 1, characterized in that, Several guide rollers (17) are installed on both the front and rear sides of the pallet plate (14). Guide strips (13) adapted to the guide rollers (17) are installed on the roller conveyor frame (12) on both the front and rear sides of the roller (11). Several passive support wheels (22) are evenly distributed in the left and right direction in the middle of the inner side of the lower frame body (7).

5. The large-scale CTP battery pack wafer laser welding equipment as described in claim 1, characterized in that, At least one visual addressing reference post (15) is installed on the pallet plate (14), and several lifting rings (16) are installed on the pallet plate (14).

6. The large-scale CTP battery pack wafer laser welding equipment as described in claim 1, characterized in that, At least one clamping cylinder assembly (21) is installed on the lower frame body (7) near the right side. The clamping cylinder assembly (21) includes a clamping cylinder and a clamping stop that moves up and down under the drive of the clamping cylinder. A limit frame (42) is installed on the lower frame body (7) near the left side.

7. The large-scale CTP battery pack wafer laser welding equipment as described in claim 1, characterized in that, The three-axis gantry (2) includes several columns (24) mounted on the lower frame body (7). Two X-axis crossbeams (25) are mounted on the columns (24). An X-axis linear motor module (23) is mounted on the X-axis crossbeams (25). The X-axis linear motor module (23) drives the Y-axis crossbeam (28) to move in the left and right directions. A Y-axis linear motor module (29) is mounted on the Y-axis crossbeam (28). The diaphragm assembly (6) includes a front pad (31) and a Z-axis linear motor module (40). The Y-axis linear motor module (29) drives the Z-axis linear motor module (40) to move in the front and rear directions. The Z-axis linear motor module (40) drives the diaphragm processing mechanism mounted on the front pad (31) to move in the vertical direction.

8. The large-scale CTP battery pack wafer laser welding equipment as described in claim 7, characterized in that, At least one auxiliary beam (26) is installed between the two X-axis beams (25), the Y-axis beam (28) is connected to the X-axis cable chain assembly (27) installed on the X-axis beam (25), the Z-axis linear motor module (40) is connected to the Y-axis cable chain assembly (30) installed on the Y-axis beam (28), and the front pad (31) is connected to the Z-axis cable chain assembly (39) installed on the Z-axis linear motor module (40).

9. The large-scale CTP battery pack wafer laser welding equipment as described in claim 7, characterized in that, The galvanizing lens processing mechanism includes a galvanizing lens (32), a vision camera assembly (33), a laser rangefinder (34), a dust extraction port (35), a copper nozzle (36), and a dustproof double-layer air knife (38) mounted on the front pad plate (31).

10. The large-scale CTP battery pack wafer laser welding equipment as described in claim 9, characterized in that, A slide cylinder (37) mounted on the front pad (31) drives the laser rangefinder (34) to move in the front-rear direction.

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