An ultrasonic battery frame welding device with multiple welding heads

Abstract

This utility model relates to the field of welding equipment technology, specifically to an ultrasonic battery frame welding device with multiple welding heads. It includes a frame, a top plate connected to the upper part of the frame, and several cylinders mounted on the top plate. A connecting frame is fixedly connected to each cylinder, and a mounting box is driven to the lower end of the piston rod of each cylinder. A mounting ring is fixedly connected to the lower part of the mounting box. This utility model uses multiple cylinders to drive multiple welding heads to work synchronously, enabling simultaneous welding of different parts of the new energy vehicle battery frame. This significantly shortens the welding cycle, improves production efficiency, and is suitable for large-scale mass production. Through the clutch control of the lifting insulating rod and the power socket, the welding head only activates the cooling element when not welding, avoiding energy loss during the welding process and effectively reducing the temperature of the welding head.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically to an ultrasonic battery frame welding device with multiple welding heads. Background Technology

[0002] Ultrasonic welding transducers are devices used to weld metals or plastics. By rapidly rubbing the welding materials together, the materials are heated to high temperatures and melt quickly. The weld joint is then pressed together to create a fixed connection with a strength similar to that of the natural weld.

[0003] Existing ultrasonic battery frame welding equipment for new energy vehicles, such as the Chinese Utility Model Publication No. CN222806267U, discloses an ultrasonic welding head, which includes: a welding base having an end face; a toothed unit disposed on the end face of the welding base; the toothed unit includes multiple welding teeth arranged in an array; and the edges of the toothed unit are serrated.

[0004] While the aforementioned patent can reduce the occurrence of weld point breakage due to over-welding of workpieces, it lacks active heat dissipation capabilities. When the ambient temperature is too high, the residual heat of the welding head may still cause the welding head to overheat, resulting in over-welding. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides an ultrasonic battery frame welding device with multiple welding heads, which can effectively solve the problem of over-welding caused by residual heat of the welding head in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides an ultrasonic battery frame welding device with multiple welding heads, including a frame, a top plate connected to the upper part of the frame, a plurality of cylinders on the top plate, a connecting frame fixedly connected to each cylinder, a mounting box drivenly connected to the lower end of the piston rod of each cylinder, a mounting ring fixedly connected to the lower part of the mounting box, a welding head connected to the lower part of the mounting ring, a lifting insulating rod penetrating through the welding head, a power socket sleeved on the outer side of the lifting insulating rod, a power plug fixedly connected to the top of the lifting insulating rod, a cooling chip connected to the power plug via a wire, a copper plate connected to the cold end of the cooling chip, a heat-conducting copper pipe connected between the copper plate and the welding head, an ultrasonic transformer housed inside the mounting box, and a transducer connected to the upper part of the ultrasonic transformer.

[0008] Furthermore, the mounting box is provided with a heat dissipation grille, and the lower part of the welding head is provided with a protrusion.

[0009] Furthermore, the welding head is provided with several heat dissipation grooves, the power socket is fixedly connected inside one of the heat dissipation grooves, and a spring is fixedly connected to the top of the heat dissipation groove.

[0010] Furthermore, the copper plate is fixedly connected to the mounting box, and an insulation frame is fixedly connected to one side of the copper plate, with the cooling element disposed inside the insulation frame.

[0011] Furthermore, the hot end of the cooling chip is connected to an aluminum heat sink, and a fan is connected to the aluminum heat sink.

[0012] Furthermore, the mounting box includes an upper plate and a lower plate, a reinforcing rod is welded between the upper plate and the lower plate, and a power module is fixedly connected inside the mounting box.

[0013] Furthermore, a guide rod is fixedly connected to the upper part of the mounting box, a guide sleeve is fixedly connected to the connecting frame, and a limit plate is fixedly connected to the top of the guide rod.

[0014] Furthermore, the power socket is connected to the power module via a wire, the power plug is provided with electrodes, and the power socket is provided with a power connection slot.

[0015] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0016] This invention uses multiple cylinders to drive multiple welding heads to work synchronously, which can simultaneously weld different parts of the battery frame of new energy vehicles, greatly shortening the welding cycle, improving production efficiency, and is suitable for large-scale mass production needs.

[0017] By controlling the lifting of the insulating rod and the power socket, the cooling coil is activated only when the welding head is not welding, thus avoiding energy loss during the welding process and effectively reducing the temperature of the welding head to prevent over-welding caused by residual heat from the welding head.

[0018] The cold end of the cooling chip rapidly cools the welding head through a copper plate and heat-conducting copper pipe, while the hot end is cooled by aluminum heat sinks and a fan. Combined with heat sinks and heat grids, the heat dissipation efficiency is optimized to ensure stable temperature during the welding process and improve welding consistency and reliability.

[0019] The cooling system only operates during welding intervals, avoiding continuous power consumption; ultrasonic welding itself has low energy consumption and requires no additional solder, making it more energy-efficient and environmentally friendly than traditional welding methods (such as laser welding and resistance welding), thus reducing production costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is an open schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the mounting box and cylinder structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the interior of the mounting box of this utility model;

[0024] Figure 4 This is a schematic diagram of the bottom of the welding head of this utility model;

[0025] Figure 5 This is a schematic diagram of the welding head and lifting insulating rod structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the cooling chip structure of this utility model;

[0027] Figure 7 This is a schematic diagram of the heat dissipation groove structure of this utility model;

[0028] Figure 8 This is a schematic diagram of the power socket and lifting insulating rod of this utility model.

[0029] The labels in the diagram represent: 1. Frame; 2. Top plate; 3. Connecting frame; 4. Cylinder; 5. Welding head; 51. Protrusion; 52. Heat dissipation groove; 6. Guide rod; 7. Mounting box; 71. Heat dissipation grille; 72. Upper plate; 73. Reinforcing rod; 74. Power module; 75. Lower plate; 8. Mounting ring; 9. Guide sleeve; 10. Limiting plate; 12. Ultrasonic transformer; 13. Fan; 14. Aluminum heat sink; 15. Lifting insulating rod; 16. Thermal conductive copper pipe; 17. Copper plate; 18. Insulation frame; 19. Cooling element; 20. Power socket; 201. Power connection slot; 21. Power plug; 211. Electrode; 22. Spring. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] The present invention will be further described below with reference to the embodiments.

[0032] Example: An ultrasonic battery frame welding device with multiple welding heads, as shown in the attached figure. Figure 1 -Appendix Figure 8 The system includes a frame 1, with a top plate 2 connected to the upper part of the frame 1. Several cylinders 4 are mounted on the top plate 2. Multiple cylinders 4 drive multiple welding heads 5 to work synchronously, which can simultaneously weld different parts of the new energy vehicle battery frame. A connecting frame 3 is fixedly connected to the cylinder 4. The lower end of the piston rod of the cylinder 4 is driven to the mounting box 7. The lower part of the mounting box 7 is fixedly connected to the mounting ring 8. The lower part of the mounting ring 8 is connected to the welding head 5. Multiple cylinders 4 and multiple welding heads 5 can weld together, achieving the purpose of efficiently welding the ultrasonic battery frame of new energy vehicles.

[0033] A lifting insulating rod 15 passes through the welding head 5. The lifting insulating rod 15 can move up and down. A power socket 20 is sleeved on the outside of the lifting insulating rod 15. A power plug 21 is fixedly connected to the top of the lifting insulating rod 15. The power plug 21 is connected to a cooling chip 19 through a wire. When the welding head 5 is not in contact with the workpiece, the lifting insulating rod 15 can descend to contact the power socket 20, at which time it is cooled. When the welding head 5 is in contact with the workpiece, the lifting insulating rod 15 can rise to disengage from the power socket 20, at which time it is not cooled.

[0034] The cold end of the cooling chip 19 is connected to a copper plate 17. A heat-conducting copper pipe 16 is connected between the copper plate 17 and the welding head 5. The heat-conducting copper pipe 16 passes through and is inserted into the interior of the welding head 5, and the interior of the welding head 5 is cooled by the cooling chip 19.

[0035] The mounting box 7 houses an ultrasonic transformer 12, with a transducer connected to its upper part. The main function of the ultrasonic transformer 12 is to change the amplitude in the ultrasonic system rather than directly converting the energy form. The ultrasonic transformer 12 is typically located after the transducer and is used to adjust the amplitude of the mechanical vibration generated by the transducer.

[0036] The mounting box 7 has a heat dissipation grille 71, and the lower part of the welding head 5 has a protrusion 51 for welding the recessed part of the ultrasonic battery frame of the new energy vehicle.

[0037] The welding head 5 is provided with several heat dissipation slots 52. The power socket 20 is fixedly connected to the inside of one of the heat dissipation slots 52. A spring 22 is fixedly connected to the top of the heat dissipation slot 52. The spring 22 can cause the lifting insulating rod 15 to descend when no force is applied.

[0038] The copper plate 17 is fixedly connected to the mounting box 7. An insulation frame 18 is fixedly connected to one side of the copper plate 17. The cooling element 19 is placed inside the insulation frame 18. The insulation frame 18 is made of plastic and serves to insulate and isolate the temperature.

[0039] The hot end of the cooling chip 19 is connected to an aluminum heat sink 14, and a fan 13 is connected to the aluminum heat sink 14 to dissipate heat from the hot end of the cooling chip 19.

[0040] The mounting box 7 includes an upper plate 72 and a lower plate 75. A reinforcing rod 73 is welded between the upper plate 72 and the lower plate 75. A power module 74 is fixedly connected inside the mounting box 7. The power module 74 is used to supply power to the power socket 20.

[0041] A guide rod 6 is fixedly connected to the upper part of the mounting box 7, and a guide sleeve 9 is fixedly connected to the connecting frame 3. A limit plate 10 is fixedly connected to the top of the guide rod 6. The limit plate 10 is used to prevent the guide rod 6 from disengaging from the guide sleeve 9.

[0042] The power socket 20 is connected to the power module 74 via a wire. The power plug 21 is provided with an electrode 211, and the power socket 20 is provided with a power connection slot 201. When the electrode 211 contacts the power connection slot 201, the cooling chip 19 receives power.

[0043] Working Principle: This equipment mainly consists of a frame 1, a top plate 2, a cylinder 4, a connecting frame 3, a mounting box 7, and welding heads 5. Its core function is to achieve efficient welding of new energy vehicle battery frames through the simultaneous operation of multiple ultrasonic welding heads 5. The cylinder 4 drives the mounting box 7 and welding heads 5 to move up and down via a piston rod, causing the protrusions 51 of the welding heads 5 to press against the recessed parts of the battery frame for welding. The mounting box 7 integrates an ultrasonic transducer 12 and a transducer, converting electrical energy into high-frequency mechanical vibration, which is transmitted to the workpiece through the welding heads 5, causing frictional heat generation at the contact surface and achieving localized fusion.

[0044] During welding, when the welding head 5 contacts the workpiece, the lifting insulating rod 15 rises under the reaction force, causing the power plug 21 to separate from the power socket 20, and the cooling element 19 is de-energized and stops cooling. After welding is completed, the cylinder 4 retracts and lifts the welding head 5, the lifting insulating rod 15 returns to its original position under the action of the spring 22, the power plug 21 contacts the socket, and the cooling element 19 is energized. The cold energy is conducted to the inside of the welding head 5 through the copper plate 17 and the heat-conducting copper pipe 16, achieving rapid cooling and avoiding heat accumulation that could affect the welding quality. The hot end of the cooling element 19 is forcibly cooled by the aluminum heat sink 14 and the fan 13, the insulation frame 18 reduces thermal interference at the cold end, and the heat dissipation groove 52 and the heat dissipation grille 71 further optimize the heat dissipation effect.

[0045] The equipment adopts a rigid structural design. The mounting box 7 is welded from an upper plate 72, a lower plate 75, and a reinforcing rod 73 to ensure the stability of ultrasonic wave transmission. The guide rod 6 cooperates with the guide sleeve 9 to prevent the mounting box 7 from swaying, and the limiting plate 10 limits the stroke. The power module 74 supplies power to the ultrasonic transformer 12 and the cooling system. The power socket 20 realizes the intelligent start and stop of the cooling element 19 through the engagement and disengagement of the power connection slot 201 and the electrode 211. The overall design takes into account high efficiency, reliability, and energy saving, and is suitable for the large-scale production of battery frames for new energy vehicles.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ultrasonic battery frame welding device with multiple welding heads, comprising a frame (1), characterized in that, The upper part of the frame (1) is connected to a top plate (2), and the top plate (2) is provided with several cylinders (4). A connecting frame (3) is fixedly connected to the cylinder (4). The lower end of the piston rod of the cylinder (4) is connected to a mounting box (7). The lower part of the mounting box (7) is fixedly connected to a mounting ring (8). The lower part of the mounting ring (8) is connected to a welding head (5). A lifting insulating rod (15) passes through the welding head (5). The outer side of the lifting insulating rod (15) A power socket (20) is provided on the side. A power plug (21) is fixedly connected to the top of the lifting insulating rod (15). The power plug (21) is connected to a cooling chip (19) through a wire. A copper plate (17) is connected to the cold end of the cooling chip (19). A heat-conducting copper pipe (16) is connected between the copper plate (17) and the welding head (5). An ultrasonic transformer (12) is provided inside the mounting box (7). A transducer is connected to the upper part of the ultrasonic transformer (12).

2. The ultrasonic battery frame welding equipment with multiple welding heads according to claim 1, characterized in that, The mounting box (7) is provided with a heat dissipation grille (71), and the lower part of the welding head (5) is provided with a protrusion (51).

3. The ultrasonic battery frame welding equipment with multiple welding heads according to claim 1, characterized in that, The welding head (5) is provided with several heat dissipation grooves (52), and the power socket (20) is fixedly connected inside one of the heat dissipation grooves (52). A spring (22) is fixedly connected to the top of the heat dissipation groove (52).

4. The ultrasonic battery frame welding equipment with multiple welding heads according to claim 1, characterized in that, The copper plate (17) is fixedly connected to the mounting box (7), and a heat insulation frame (18) is fixedly connected to one side of the copper plate (17). The cooling chip (19) is set inside the heat insulation frame (18).

5. The ultrasonic battery frame welding equipment with multiple welding heads according to claim 4, characterized in that, The hot end of the cooling chip (19) is connected to an aluminum heat sink (14), and a fan (13) is connected to the aluminum heat sink (14).

6. The ultrasonic battery frame welding equipment with multiple welding heads according to claim 1, characterized in that, The mounting box (7) includes an upper plate (72) and a lower plate (75), with a reinforcing rod (73) welded between the upper plate (72) and the lower plate (75), and a power module (74) is fixedly connected inside the mounting box (7).

7. The ultrasonic battery frame welding equipment with multiple welding heads according to claim 1, characterized in that, The upper part of the mounting box (7) is fixedly connected to a guide rod (6), the connecting frame (3) is fixedly connected to a guide sleeve (9), and the top of the guide rod (6) is fixedly connected to a limiting plate (10).

8. The ultrasonic battery frame welding equipment with multiple welding heads according to claim 6, characterized in that, The power socket (20) is connected to the power module (74) via a wire. The power plug (21) is provided with electrodes (211), and the power socket (20) is provided with a power connection slot (201).

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