New energy battery shell welding equipment

Abstract

The invention discloses new energy battery shell welding equipment, and relates to the technical field of laser welding, the new energy battery shell welding equipment comprises a frame body, a horizontal groove is formed in the upper surface of the frame body, a gun rack is horizontally and slidably mounted on the frame body in the length direction of the groove, a laser welding gun is mounted on the gun rack, the bottom surface of the groove is a semicircular arc surface, and the two ends of the groove extend to the end face of the frame body. The side surface of the profiled groove is a vertical surface; a lifting rod is vertically installed on the bottom face of the profile groove in a sliding mode, and a shaping assembly used for shaping the profile is installed on the lifting rod. A limiting assembly used for limiting the profile is installed on the side wall of the profile groove. Through cooperation of the shaping assembly and the limiting assembly, a rectangular sheet is pressed into a barrel shape, it is guaranteed that the material is always kept in a barrel-shaped structure in the welding process, the shaping assembly adsorbs the inner wall of the barrel-shaped material in the welding process, the material is prevented from rotating relative to a welding gun, it is guaranteed that a welding seam is a straight line, and the welding quality is improved. And the cross section of the welded cylindrical shell of the battery is circular.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to a new energy battery shell welding device. Background Art

[0002] The battery shell is used to protect the battery and prevent the battery from being deformed when it is squeezed by external force. The battery shell is usually manufactured by stamping or laser welding. Stamping is generally suitable for thicker shells. For thinner shells, laser welding is generally used, that is, the two corresponding edges of the rectangular sheet are welded together by a laser welding machine to obtain a cylindrical shell.

[0003] At present, there have been studies on laser welding battery shell equipment. For example, a fully automatic battery shell welding and cutting machine disclosed in the Chinese utility model patent with publication number CN208304167U includes: an annular guide rail module, a shell loading module, a welding CCD detection module, a cover sheet loading module, a welding protective cover loading and unloading module, a shell welding module, a flip module, a transfer module, a cutting CCD detection module, a cutting protective cover loading and unloading module, a shell cutting module and a finished product unloading module arranged around the annular guide rail module; the annular guide rail module includes an annular guide rail, and a plurality of workstations are arranged on the annular guide rail at equal intervals in sequence, and each workstation is provided with a welding and cutting integrated jig module that can be circulated and transmitted between the workstations in sequence along the annular guide rail, and the welding and cutting integrated jig module is transmission-connected to the annular guide rail.

[0004] For example, a battery shell laser welding device disclosed in the Chinese invention patent application with publication number CN117564465A can realize the formation of synchronous welding of the inside and outside of the battery shell during welding. It also includes a work frame and a feeding system. The feeding system includes a conveyor belt and an inner bracket. The conveyor belt is installed on the work frame. A plurality of step mounting holes are provided on the conveyor belt. The inner bracket is fixedly connected to the work frame. An electric push rod is installed on the inner bracket, and the inner bracket is used to support and limit the conveyor belt. The clamping mechanism includes a plurality of sliding columns. The plurality of sliding columns are respectively installed in a plurality of step mounting holes, and the plurality of step mounting holes are fixedly connected with restoring springs. The plurality of restoring springs are respectively fixedly connected to the plurality of sliding columns. The rear ends of the plurality of sliding columns are fixedly connected with contact frames, and a centering clamping structure is installed in the plurality of contact frames.

[0005] When the battery shell is welded using the existing welding device, only the two side edges of the rectangular sheet are often aligned, while the shape of the rectangular sheet is neglected. This will result in the battery cylindrical shell being not round enough after welding, which in turn leads to poor sealing when the cover is installed later, affecting the overall sealing of the battery. Summary of the invention

[0006] The purpose of the present invention is to provide a new energy battery shell welding device to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new energy battery shell welding device, comprising a frame, a horizontal groove is opened on the upper surface of the frame, a gun rack is horizontally slidably installed on the frame along the length direction of the groove, a laser welding gun is installed on the gun rack, the bottom surface of the groove is a semicircular arc surface, the two ends of the groove extend to the end surface of the frame, and the side surface of the groove is a vertical surface; a lifting rod is vertically slidably installed on the bottom surface of the groove, and a shaping component for shaping the profile is installed on the lifting rod; a limiting component for limiting the profile is installed on the side wall of the groove.

[0008] As a preferred technical solution of the present invention, the shaping assembly includes a horizontal rod installed at the top end of the lifting rod, and a plurality of horizontal inner support bars are evenly installed on the horizontal rod along the circumference thereof.

[0009] As a preferred technical solution of the present invention, the inner support bar slides with the horizontal bar along the radial direction of the horizontal bar, and is arranged along the length direction of the groove; the inner support bar has a working state, in which the inner support bar is farthest from the axis of the horizontal bar.

[0010] As a preferred technical solution of the present invention, the outer surface of the inner support bar is an arc surface. In the working state, the virtual circles where the outer surfaces of the inner support bars are located coincide with each other, and the diameter of the virtual circle is the same as the inner diameter of the battery shell.

[0011] As a preferred technical solution of the present invention, a control panel is fixedly installed on the inner support bar, a guide groove is opened on the control panel, a control rod is installed at one end of the horizontal rod corresponding to the position of each control panel, and a round pin that cooperates with the corresponding guide groove is rotatably installed on the control rod; an end plate is fixedly installed on one end of each control rod, and an electric telescopic rod for controlling the translation of the end plate is fixedly installed on the horizontal rod.

[0012] As a preferred technical solution of the present invention, the guide groove includes a horizontal part and an inclined part, an air channel is opened on the outer surface of the inner support bar, and the air channel is connected to the sliding groove on the horizontal rod that cooperates with the inner support bar; a sealing plate is fixedly installed on the control rod, and a groove adapted to the sealing plate is opened on the inner surface of the inner support bar.

[0013] As a preferred technical solution of the present invention, the limiting assembly includes a slider that horizontally slides with the frame, the number of the sliders is two and they are symmetrically arranged on the two side walls of the groove; each slider is rotatably mounted with a horizontal roller through a bracket, and the two rollers are arranged along the length direction of the groove.

[0014] As a preferred technical solution of the present invention, a push plate for pushing the welded shell is horizontally slidably installed in the groove, the push plate fits the groove, and the thickness of the push plate is not greater than the thickness of the battery shell.

[0015] As a preferred technical solution of the present invention, a belt mounted on the frame is installed on the push plate, and the belt fits the frame and slides with the frame; a horizontal driven rack is fixedly installed on the belt, and a horizontal rotating shaft is rotatably installed on the frame corresponding to the position of the driven rack, and a first gear meshing with the driven rack is fixedly installed on the rotating shaft; a horizontal telescopic arm is fixedly installed on the gun frame through a rigid frame, and a first drive rack and a second drive rack are fixedly installed on the end of the telescopic section of the telescopic arm through a bracket; a second gear cooperating with the first drive rack and the second drive rack is fixedly installed on the rotating shaft.

[0016] As a preferred technical solution of the present invention, a guide block is installed on the telescopic section of the telescopic arm through a spring, and a ball is rotatably installed on the top of the guide block; a first guide rail and a second guide rail are fixedly installed on the frame at the position corresponding to the guide block, and the first guide rail is provided with a first guide groove that cooperates with the guide block, and the second guide rail is provided with a second guide groove that cooperates with the guide block.

[0017] In the above technical scheme, the present invention provides a new energy battery shell welding device, which presses the rectangular sheet into a cylindrical shape through the cooperation of the shaping component and the limiting component, ensuring that the material always maintains a cylindrical structure during the welding process, and the shaping component adsorbs the inner wall of the cylindrical material during the welding process, avoiding the material from rotating relative to the welding gun, ensuring that the weld is a straight line, and the cross-section of the welded battery cylindrical shell is circular, which improves the overall sealing of the battery. In addition, after the welding gun is welded, the shaping component and the limiting component contact the pressure on the cylindrical shell. During the resetting process of the welding gun, the push plate will automatically push the welded shell to move one end distance, making it easier for the operator to remove the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a first stereoscopic schematic diagram of the new energy battery housing welding equipment in the embodiment;

[0020] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0021] Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0022] Figure 4 It is a partial structural cross-sectional view of the frame in the embodiment;

[0023] Figure 5 It is a second stereoscopic schematic diagram of the new energy battery housing welding equipment in the embodiment;

[0024] Figure 6 for Figure 5 The enlarged schematic diagram of the center C;

[0025] Figure 7 It is a partial structural cross-sectional view of the frame and the inner support bar in the embodiment;

[0026] Figure 8 for Figure 7 The enlarged schematic diagram of point D in the middle;

[0027] Fig. 9 Schematic diagram of the partial structure of the first guide groove and the second guide groove in the embodiment.

[0028] Description of reference numerals:

[0029] 1. Frame; 101. Groove; 2. Gun rack; 3. Laser welding gun; 4. Lifting rod; 5. Shaping assembly; 501. Horizontal rod; 502. Inner support bar; 503. Control board; 504. Guide groove; 505. Control rod; 506. Round pin; 507. End plate; 508. Electric telescopic rod; 509. Airway; 510. Slide; 511. Sealing plate; 512. Groove; 6. Limiting assembly; 601. Slider; 602. Roller; 7. Push plate; 8. Belt; 9. Driven rack; 10. Rotating shaft; 11. First gear; 12. Rigid frame; 13. Telescopic arm; 14. First drive rack; 15. Second drive rack; 16. Second gear; 17. Guide block; 18. First guide rail; 1801. First guide groove; 19. Second guide rail; 1901. Second guide groove. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] like Figure 1 , Figure 4 and Figure 5As shown, this embodiment provides a new energy battery shell welding device, which welds a single rectangular sheet into a cylindrical shape by laser welding, and the thickness of the sheet is 2 mm. It specifically includes a frame 1, the upper surface of the frame 1 is a horizontal plane, and the upper surface of the frame 1 is installed with a baffle that cooperates with the rectangular sheet; a horizontal groove 101 is opened on the upper surface of the frame 1; when working, an external feeding device pushes a single rectangular sheet to the upper surface of the frame 1, so that the sheet is located above the groove 101, and the edge of the sheet is in contact with the baffle, so that the sheet is in a predetermined working position; a gun frame 2 is horizontally slidably installed on the frame 1 along the length direction of the groove 101, and a driving member for driving the gun frame 2 is installed on the frame 1 (not shown in the figure); a laser welding gun 3 located above the groove 101 is installed on the gun frame 2, and the muzzle of the laser welding gun 3 faces downward. The bottom surface of the groove 101 is a semicircular arc surface, and the two ends of the groove 101 extend to the end surface of the frame 1, and the side surface of the groove 101 is a vertical surface; the bottom surface of the groove 101 is vertically slidably installed with a lifting rod 4, and a driving member (not shown in the figure) for controlling the lifting and lowering of the lifting rod 4 is installed in the frame 1, and a shaping component 5 for shaping the profile is installed on the lifting rod 4. A limiting component 6 for limiting the profile is also installed on the side wall of the groove 101. During specific operation, the external feeding device pushes a single rectangular sheet to a predetermined working position, and then the lifting rod 4 drives the shaping component 5 to descend. The sheet is bent and deformed under the action of the shaping component 5 and enters the groove 101. Then the limiting component 6 limits the sheet in the groove 101 so that the sheet remains in a cylindrical shape. Finally, the gun frame 2 drives the laser welding gun 3 to translate along the edge of the sheet, and the laser welding gun 3 performs laser welding on the edge of the sheet.

[0032] like Figure 5 and Figure 7 As shown, the shaping component 5 includes a horizontal rod 501 installed at the top of the lifting rod 4, and the horizontal rod 501 has a horizontal axis, which is located directly above the virtual axis of the semicircular arc of the bottom surface of the groove 101, and the two axes are parallel to each other; a plurality of horizontal inner support bars 502 are evenly installed on the horizontal rod 501 along its circumference; the inner support bars 502 are slidably matched with the horizontal rod 501 along the radial direction of the horizontal rod 501, and the inner support bars 502 are arranged along the length direction of the groove 101; the inner support bars 502 have a working state, and in the working state, the inner support bars 502 are farthest from the axis of the horizontal rod 501; the outer surface of the inner support bars 502 is an arc surface, and in the working state, the virtual circles where the outer surfaces of each inner support bar 502 are located coincide with each other, and the diameter of the virtual circle is the same as the inner diameter of the battery shell.

[0033] During specific operation, in the initial state, the horizontal rod 501 and the inner support bar 502 are both located above the sheet, and the inner support bar 502 is in a working state. As the lifting rod 4 drives the horizontal rod 501 and the inner support bar 502 to descend, the outer surface of the inner support bar 502 at the bottom contacts the upper surface of the sheet and presses the sheet into the groove 101; after the lower surface of the sheet is in contact with the bottom surface of the groove 101, the limiting component 6 limits the sheet so that the sheet forms a cylindrical shape. In this state, the outer surfaces of each inner support bar 502 are in contact with the inner cylindrical surface of the cylindrical material, and the edge of the cylindrical material to be welded is at the uppermost position of its circumference.

[0034] like Figure 2 and Figure 8 As shown, a control panel 503 located inside the horizontal rod 501 is fixedly mounted on the inner support bar 502, a guide groove 504 is provided on the control panel 503, a control rod 505 is mounted at one end of the horizontal rod 501 at a position corresponding to each control panel 503, a round pin 506 which cooperates with the corresponding guide groove 504 is rotatably mounted on the control rod 505; an end plate 507 is fixedly mounted on one end of each control rod 505, and an electric telescopic rod 508 for controlling the translation of the end plate 507 is fixedly mounted on the horizontal rod 501.

[0035] Specifically, after the laser welding gun 3 completes the welding of the cylindrical material, a cylindrical shell is obtained, and the electric telescopic rod 508 extends and drives the end plate 507 and each control rod 505 to translate synchronously. The control rod 505 drives the control plate 503 and the inner support bar 502 to move a short distance along the radial direction of the horizontal rod 501 toward the axis of the horizontal rod 501 through the round pin 506, and each inner support bar 502 is out of the working state, that is, the inner support bar 502 is separated from the cylindrical shell, so that it is convenient for the operator to take out the welded cylindrical shell. Similarly, the electric telescopic rod 508 shrinks and drives the end plate 507 and each control rod 505 to translate synchronously in the opposite direction, so that the inner support bar 502 can be restored to the working state.

[0036] like Figure 7As shown, the guide groove 504 includes a horizontal part and an inclined part. In the initial state, the round pin 506 is located in its horizontal part; an air channel 509 is opened on the outer surface of the inner support bar 502, and the air channel 509 is connected to the slide groove 510 on the horizontal rod 501 that cooperates with the inner support bar 502; a sealing sheet 511 is fixedly installed on the control rod 505, and the edge of the sealing sheet 511 is in contact with the slide groove 510 and the inner support bar 502; a groove 512 adapted to the sealing sheet 511 is opened on the inner surface of the inner support bar 502. Specifically, before the laser welding gun 3 welds the cylindrical material, the electric telescopic rod 508 is first extended for a distance and then maintained at a predetermined length. During this process, the round pin 506 moves along the horizontal part of the guide groove 504, and the sealing sheet 511 moves in translation following the control rod 505, while the inner support bar 502 is stationary relative to the horizontal rod 501; since one end of the airway 509 is covered and closed by the cylindrical material, the air pressure in the slide groove 510 will decrease during the translation of the sealing sheet 511, and the cylindrical material will be tightly adsorbed on the outer arc surface of the inner support bar 502 under the action of the air pressure, thereby avoiding the rotation of the cylindrical material relative to the inner support bar 502, and ensuring that the edge of the cylindrical material is in a stationary state during the welding process. After the laser welding gun 3 completes welding, the electric telescopic rod 508 continues to extend, the sealing sheet 511 enters the area corresponding to the groove 512, and the round pin 506 moves along the inclined portion of the guide groove 504. At this time, the inner support bar 502 begins to move relative to the horizontal rod 501, and one end of the airway 509 is no longer covered and closed by the cylindrical material, and the air pressure in the slide groove 510 tends to be balanced with the external air pressure.

[0037] In summary, in this embodiment, the guide groove 504 is set as a horizontal part and an inclined part. Through a single driving source of the electric telescopic rod 508, the internal support bars 502 can adsorb the cylindrical material during welding, and after welding, the internal support bars 502 can move relative to the horizontal rod 501 and separate from the cylindrical shell, thereby reducing the design and manufacturing costs of the equipment.

[0038] The limiting assembly 6 includes a slider 601 that is horizontally slidably matched with the frame 1. The slider 601 is electrically controlled. There are two sliders 601 and they are symmetrically arranged on the two side walls of the groove 101. A horizontal roller 602 is rotatably mounted on each slider 601 through a bracket, and the two rollers 602 are arranged along the length direction of the groove 101. After the shaping assembly 5 presses the sheet into the groove 101, the middle of the sheet forms a curved shape, and the two sides of the sheet are vertical. At this time, the two sliders 601 move toward each other, driving the two rollers 602 to move toward each other. During the translation process, the rollers 602 fit the vertical parts on both sides of the sheet and push the vertical parts of the sheet to bend, until the sheet is completely fitted with the outer arc surface of the inner support bar 502, thereby completing the limitation of the material and ensuring that the material is always in a cylindrical shape during the welding process.

[0039] In the actual processing, since the shell wall is relatively thin and the shell still has a relatively high residual temperature after welding, it is inconvenient for the operator to remove the shell. In view of this problem, the present embodiment also has the following design to facilitate the operator to remove the shell after welding.

[0040] like Figure 3 , Figure 5 and Figure 6 As shown, a push plate 7 for pushing the shell after welding is installed horizontally and slidingly in the groove 101, the push plate 7 is in close contact with the groove 101, and the thickness of the push plate 7 is not greater than the thickness of the battery shell; specifically, the middle part of the push plate 7 is arc-shaped, and the two sides are in a vertical state; after the welding is completed, the push plate 7 is translated for a distance under the action of external force, and one end of the shell is pushed, so that the shell is translated for a distance along the groove 101 until a part of the shell is separated from the groove 101 and is in a suspended state, the operator can take this part and then pull out the shell as a whole, and the push plate 7 can be translated in the opposite direction and reset under the action of external force; specifically, a belt 8 mounted on the frame 1 is installed on the push plate 7, the number of belts 8 is two, and they are symmetrically arranged on the left and right sides of the push plate 7, and a belt groove matching the belt 8 is opened on the frame 1, and the belt 8 is in close contact with the frame 1 and is in close contact with the frame The gun frame 2 is provided with a body 1 for sliding cooperation; a horizontal driven rack 9 is fixedly mounted on the belt 8, and the driven rack 9 is arranged along the length direction of the groove 101; a horizontal rotating shaft 10 is rotatably mounted on the frame body 1 corresponding to the position of the driven rack 9, and a first gear 11 meshing with the driven rack 9 is fixedly mounted on the rotating shaft 10; a horizontal telescopic arm 13 is fixedly mounted on the gun frame 2 through a rigid frame 12, and a first driving rack 14 and a second driving rack 15 parallel to the driven rack 9 are fixedly mounted on the end of the telescopic section of the telescopic arm 13 through a bracket; the first driving rack 14 and the second driving rack 15 are arranged up and down and one end of the two is aligned; a second gear 16 cooperating with the first driving rack 14 and the second driving rack 15 is fixedly mounted on the rotating shaft 10; the first driving rack 14 is located below the second gear 16, and the second driving rack 15 is located above the second gear 16.

[0041] Specifically, during the process of the gun frame 2 driving the laser welding gun 3 to move horizontally to weld the material, the push plate 7 is always in Figure 5The initial position shown is that the push plate 7 is not in contact with the material; the telescopic arm 13 is in an extended state, and the positions of the first drive rack 14 and the second drive rack 15 and the second gear 16 are staggered, that is, the first drive rack 14 and the second drive rack 15 do not contact the second gear 16 during translation, that is, the push plate 7 is always in a stationary state during the welding process of the laser welding gun 3; when the gun frame 2 drives the laser welding gun 3 to translate in the opposite direction, the telescopic arm 13 begins to shrink under the action of external force, and drives the first drive rack 14 and the second drive rack 15 to move through the bracket, and the first drive rack 14 and the second drive rack 15 enter the position corresponding to the second gear 16; specifically, when the gun frame 2 drives the laser welding gun 3 to translate in the opposite direction, the first drive rack 14 first enters into a meshing state with the second gear 16 , and drives the second gear 16, the rotating shaft 10 and the first gear 11 to rotate forward, the first gear 11 drives the driven rack 9 to translate in the direction of the push plate 7, the driven rack 9 drives the push plate 7 to translate in the direction of the welded shell through the belt 8, and pushes the shell, so that a part of the shell is separated from the groove 101 and suspended in the air, so that the operator can take off the shell; then, as the gun frame 2 drives the laser welding gun 3 to continue to translate in the opposite direction, the first drive rack 14 is disengaged from the second gear 16, the second drive rack 15 is engaged with the second gear 16, and drives the second gear 16, the rotating shaft 10 and the first gear 11 to rotate in the opposite direction, the first gear 11 drives the driven rack 9 to translate in the direction away from the push plate 7, and the driven rack 9 drives the push plate 7 to translate and reset through the tension of the belt 8. In this way, during the process of the gun frame 2 driving the laser welding gun 3 to translate and reset, the push plate 7 also performs a reciprocating translation movement and pushes the welded shell to a partially suspended state, which is convenient for the operator to take.

[0042] like Figure 6 and Fig. 9 As shown, a guide block 17 is installed on the telescopic section of the telescopic arm 13 through a spring, that is, a spring is connected between the guide block 17 and the telescopic section of the telescopic arm 13; the guide block 17 is a vertical cylindrical shape and a ball bearing is rotatably installed on the top of the guide block 17; a first guide rail 18 and a second guide rail 19 are fixedly installed at the position corresponding to the guide block 17 on the frame body 1, and a first guide groove 1801 cooperating with the guide block 17 is formed on the first guide rail 18, and a second guide groove 1901 cooperating with the guide block 17 is formed on the second guide rail 19. The first guide groove 1801 and the second guide groove 1901 are connected, and the connecting position of the two is located at the end, the first guide groove 1801 is a straight groove and parallel to the length direction of the profile groove 101, and the second guide groove 1901 is an arc groove. In this embodiment, Fig. 9 The groove depth of the first guide groove 1801 (white part) is 2 cm, and the groove depth of the second guide groove 1901 (gray part) is in a gradual state. The groove depth of the second guide groove 1901 near the initial position of the push plate 7 is 1.5 cm ( Fig. 9 The groove depth at the other end is 2.5cm ( Fig. 9 The upper end). A step is formed at the connection between the first guide groove 1801 and the second guide groove 1901. Specifically, during the translation of the laser welding gun 3 driven by the gun frame 2 from the initial position, the rigid frame 12 and the telescopic arm 13 move synchronously, and the guide block 17 is always located in the first guide groove 1801, that is, the telescopic arm 13 is always in an extended state and keeps its length unchanged; during the reverse translation of the laser welding gun 3 driven by the gun frame 2, the guide block 17 moves along the second guide groove 1901, that is, the telescopic arm 13 is first shortened and then extended, and the first drive rack 14 and the second drive rack 15 are able to successively enter into a meshing state with the second gear 16, so that the push plate 7 performs a reciprocating translation. It should be noted that since the first guide groove 1801 and the second guide groove 1901 are connected to form a step, and the top of the guide block 17 is always in contact with the top surface of the first guide groove 1801 or the second guide groove 1901 under the action of the spring, the guide block 17 is arranged in accordance with Fig. 9 After moving to the upper end of the first guide groove 1801, the guide block 17 will only move along the second guide groove 1901 and cannot directly return to the first guide groove 1801. Fig. 9 After the direction moves to the lower end of the second guide groove 1901 , it will only move along the first guide groove 1801 and cannot directly return to the second guide groove 1901 .

[0043] To sum up, in this embodiment, after welding is completed, during the process of the gun frame 2 driving the laser welding gun 3 to translate and reset, the push plate 7 also automatically performs a reciprocating translation motion and pushes the welded shell to a partially suspended state, making it easier for the operator to take the shell.

[0044] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A new energy battery shell welding device, comprising a frame (1), a horizontal groove (101) is provided on the upper surface of the frame (1), a gun rack (2) is horizontally slidably mounted on the frame (1) along the length direction of the groove (101), and a laser welding gun (3) is mounted on the gun rack (2), characterized in that: The bottom surface of the groove (101) is a semicircular arc surface, the two ends of the groove (101) extend to the end surface of the frame (1), and the side surface of the groove (101) is a vertical surface; a lifting rod (4) is vertically slidably installed on the bottom surface of the groove (101), and a shaping component (5) for shaping the profile is installed on the lifting rod (4); and a limiting component (6) for limiting the profile is installed on the side wall of the groove (101).

2. A new energy battery casing welding device according to claim 1, characterized in that: The shaping component (5) comprises a horizontal rod (501) installed at the top end of the lifting rod (4), and a plurality of horizontal inner support bars (502) are evenly installed on the horizontal rod (501) along its circumference.

3. A new energy battery casing welding device according to claim 2, characterized in that: The inner support bar (502) is slidably matched with the horizontal rod (501) along the radial direction of the horizontal rod (501), and the inner support bar (502) is arranged along the length direction of the groove (101); the inner support bar (502) has a working state, and in the working state, the inner support bar (502) is farthest from the axis of the horizontal rod (501).

4. A new energy battery casing welding device according to claim 3, characterized in that: The outer surface of the inner support bar (502) is an arc-shaped surface. In the working state, the virtual circles where the outer surfaces of the inner support bars (502) are located coincide with each other, and the diameter of the virtual circle is the same as the inner diameter of the battery shell.

5. A new energy battery casing welding device according to claim 4, characterized in that: A control panel (503) is fixedly mounted on the inner support bar (502), and a guide groove (504) is provided on the control panel (503); a control rod (505) is mounted at one end of the horizontal rod (501) at a position corresponding to each control panel (503), and a round pin (506) that cooperates with the corresponding guide groove (504) is rotatably mounted on the control rod (505); an end plate (507) is fixedly mounted on one end of each control rod (505), and an electric telescopic rod (508) for controlling the translation of the end plate (507) is fixedly mounted on the horizontal rod (501).

6. A new energy battery casing welding device according to claim 5, characterized in that: The guide groove (504) includes a horizontal portion and an inclined portion. An air channel (509) is provided on the outer surface of the inner support bar (502). The air channel (509) is connected to a slide groove (510) on the horizontal rod (501) that cooperates with the inner support bar (502). A sealing sheet (511) is fixedly installed on the control rod (505), and a groove (512) that matches the sealing sheet (511) is provided on the inner surface of the inner support bar (502).

7. The new energy battery housing welding equipment according to claim 1 is characterized in that: The limiting assembly (6) comprises a slider (601) that is horizontally slidably matched with the frame (1), and the number of the sliders (601) is two and they are symmetrically arranged on the two side walls of the groove (101); each slider (601) is rotatably mounted with a horizontal roller (602) through a bracket, and the two rollers (602) are arranged along the length direction of the groove (101).

8. The new energy battery housing welding equipment according to claim 1 is characterized in that: A push plate (7) for pushing the welded shell is horizontally slidably installed in the groove (101); the push plate (7) fits the groove (101), and the thickness of the push plate (7) is not greater than the thickness of the battery shell.

9. A new energy battery casing welding device according to claim 8, characterized in that: The push plate (7) is provided with a belt (8) sleeved on the frame (1), the belt (8) is in contact with the frame (1) and is slidably matched with the frame (1); a horizontal driven rack (9) is fixedly installed on the belt (8), a horizontal rotating shaft (10) is rotatably installed on the frame (1) corresponding to the position of the driven rack (9), and a first gear (11) meshing with the driven rack (9) is fixedly installed on the rotating shaft (10); a horizontal telescopic arm (13) is fixedly installed on the gun frame (2) through a rigid frame (12), and a first driving rack (14) and a second driving rack (15) are fixedly installed at the end of the telescopic section of the telescopic arm (13) through a bracket; a second gear (16) matching with the first driving rack (14) and the second driving rack (15) is fixedly installed on the rotating shaft (10).

10. A new energy battery casing welding device according to claim 9, characterized in that: A guide block (17) is installed on the telescopic section of the telescopic arm (13) via a spring, and a ball is rotatably installed on the top of the guide block (17); a first guide rail (19) and a second guide rail (20) are fixedly installed at a position corresponding to the guide block (17) on the frame (1); a first guide groove (1901) cooperating with the guide block (17) is provided on the first guide rail (19), and a second guide groove (2001) cooperating with the guide block (17) is provided on the second guide rail (20).

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