Automatic spot welding equipment for battery pack

Abstract

The utility model discloses automatic spot welding equipment for a battery pack, which comprises an upper hinge and a lower hinge, a gap convenient for placing the battery pack is arranged between the upper hinge and the lower hinge, a plurality of mounting grooves are arranged on both the upper hinge and the lower hinge, a plurality of clamping grooves are arranged on the lower hinge, a plurality of spot welding grooves are arranged on both the upper hinge and the lower hinge, and the upper hinge and the lower hinge are connected with the mounting grooves. Therefore, during spot welding, the nickel sheet is placed in the mounting groove of the lower hinge, the extending part of the nickel sheet is clamped into the clamping groove at the moment, then one end of the battery pack is placed in the mounting groove of the lower hinge, the mounting groove limits the position of the battery pack, and the clamping groove can limit the position of the nickel sheet. And the spot welding point positions of the battery pack and the nickel sheet are aligned, so that the spot welding accuracy is improved.

Description

Technical Field

[0001] This utility model belongs to the field of battery pack processing, and relates to a battery pack auxiliary labeling device, and in particular to an automatic spot welding device for battery packs. Background Technology

[0002] A battery spot welding machine is a device that uses resistance heat for welding. Pressure is applied by electrodes to create resistance between two layers of metal at the contact point. When current passes through, heat is generated, which melts the metal and presses it together, thus achieving welding.

[0003] For example, an automatic spot welding machine for battery packs, disclosed in CN214291349U, includes a machine body and a flipping section. The lower end of the machine body is provided with a counter, and a transparent glass plate is embedded in the middle of the machine body. A material preparation section is opened at the left end of the machine body, and a first spot welding section is distributed parallel to the right end of the material preparation section. A control panel is fixed on the upper side of the first spot welding section, and a rotating component is provided at the left end of the first spot welding section. An electrode grinding table is fixed in the middle of the first spot welding section. The flipping section is connected to the right end of the first spot welding section, and a positioning plate is provided inside the flipping section.

[0004] When spot welding the battery packs, the aforementioned battery pack spot welding equipment requires workers to place nickel sheets on the battery packs one group at a time, and then place the battery packs with nickel sheets on the conveyor belt for spot welding. However, since the nickel sheets are placed manually, there is a possibility that the nickel sheets may shift from the welding points on the battery packs, affecting the final use of the battery packs. Utility Model Content

[0005] This invention provides an automatic spot welding device for battery packs, which can align nickel sheets with the welding points on the battery pack when placing them.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an automatic spot welding device for battery packs, including an upper hinge and a lower hinge detachably connected to the upper hinge. When the upper hinge and the lower hinge are assembled together, there is a gap between the upper hinge and the lower hinge to facilitate the placement of the battery pack. Several mounting grooves are opened on the opposite surfaces of the upper hinge and the lower hinge. The mounting grooves are consistent with the shape of the battery pack. Several slots communicating with the mounting grooves are opened on the lower hinge. When a nickel sheet is placed in the mounting groove, the extension of the nickel sheet is located in the slot. Several spot welding grooves communicating with the mounting grooves are opened on both the upper hinge and the lower hinge. During spot welding, both ends of the battery pack located in the gap are inserted into the mounting grooves, and the nickel sheet is located in the mounting groove and abuts against both ends of the battery pack.

[0007] A further preferred embodiment of this invention is that the depth of the slot is less than the depth of the mounting slot.

[0008] A further preferred embodiment of this utility model is that there is a gap between two adjacent card slots.

[0009] A further preferred embodiment of this invention is: a plurality of magnetic blocks for adsorbing nickel sheets are fixedly connected to the bottom surface of the mounting groove.

[0010] A further preferred embodiment of this utility model is that each of the mounting slots is provided with two magnetic blocks.

[0011] A further preferred technical solution of this utility model is as follows: baffles are fixedly connected to both sides of the lower hinge, and positioning rods are fixedly connected to the baffles. A positioning groove is provided on the upper hinge to facilitate the insertion of the positioning rod. When the upper hinge and the lower hinge are assembled, the positioning rod is inserted into the positioning groove and a gap is formed.

[0012] A further preferred embodiment of this utility model is that a plurality of magnetic blocks that can attract each other are fixedly connected to both the baffle and the upper hinge.

[0013] A further preferred embodiment of this utility model is that both the lower hinge and the upper hinge are provided with latches, and when the latches on the upper hinge and the lower hinge are locked, the upper hinge and the lower hinge are fixed together.

[0014] A further preferred embodiment of this utility model is that at least two latches are provided.

[0015] A further preferred embodiment of this utility model is that each of the baffles is fixedly connected with a handle.

[0016] Compared with the prior art, this utility model includes an upper hinge and a lower hinge, with a gap between the upper and lower hinges to facilitate the placement of the battery pack. Several mounting grooves are formed on the opposing surfaces of both the upper and lower hinges, and several slots communicating with the mounting grooves are formed on the lower hinge. Several spot welding grooves are also formed on both the upper and lower hinges. Therefore, during spot welding, a nickel sheet is placed in the mounting groove of the lower hinge, at which point the extension of the nickel sheet is engaged in the slot. Then, one end of the battery pack is placed in the mounting groove of the lower hinge. The mounting grooves limit the position of the battery pack, while the slots limit the position of the nickel sheet, aligning the spot welding points of the battery pack and the nickel sheet, thereby improving the accuracy of the spot welding. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is an overall structural diagram of the present invention;

[0019] Figure 2 This is an overall structural diagram of the upper and lower hinges of this utility model;

[0020] Figure 3 This is a structural diagram of the upper hinge of this utility model;

[0021] Figure 4 This is a structural diagram of the lower hinge of this utility model.

[0022] In the diagram: 1. Spot welding equipment; 2. Upper hinge; 3. Lower hinge; 4. Lock; 5. Spot welding groove; 6. Battery pack; 7. Mounting groove; 8. Gap; 9. Handle; 10. Baffle; 11. Positioning rod; 12. Slot; 13. Magnetic block one; 14. Magnetic block two; 15. Positioning groove. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0024] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0025] Figure 1 and Figure 2 As shown, an automatic spot welding device for battery packs includes an upper hinge 2 and a lower hinge 3 detachably connected to the upper hinge 2. When the upper hinge 2 and the lower hinge 3 are assembled together, there is a gap 8 between the upper hinge 2 and the lower hinge 3 to facilitate the placement of the battery pack 6. Several mounting grooves 7 are provided on the opposite surfaces of the upper hinge 2 and the lower hinge 3. The mounting grooves 7 on the upper hinge 2 and the lower hinge 3 are arranged opposite to each other, and the shape of the mounting grooves 7 is consistent with that of the battery pack 6.

[0026] Figures 2-4As shown, when spot welding the battery pack 6, the upper hinge 2 and the lower hinge 3 are separated, and the mounting groove 7 of the lower hinge 3 is placed on the table with the mounting groove 7 facing upwards. Several nickel sheets are placed in the mounting groove 7 of the lower hinge 3. Then, one end of the battery pack 6 is placed in the mounting groove 7 of the lower hinge 3. At this time, the battery pack 6 is perpendicular to the lower hinge 3. The nickel sheets are then placed on the other end of the battery pack 6, and the upper hinge 2 is placed on top of the battery pack 6, so that the other end of the battery pack 6 and the nickel sheets on that end face are both inserted into the mounting groove 7. At the same time, the upper hinge 2 and the lower hinge 3 are assembled, and the battery pack 6 and the nickel sheets are also assembled, which is the basis for subsequent spot welding. In this design, the upper hinge 2 and the lower hinge 3 with mounting groove 7 can effectively limit the range of motion of the battery pack 6 and prevent the battery pack 6 from shifting during the spot welding process, which would affect the accuracy of the spot welding.

[0027] Figures 2-4 As shown, the lower hinge 3 has several slots 12 that communicate with the mounting groove 7. There is a gap between two adjacent slots 12. When the nickel sheet is placed in the mounting groove 7, the extension of the nickel sheet is located in the slot 12. The depth of the slot 12 is less than the depth of the mounting groove 7.

[0028] Figures 2-4 As shown, when assembling the battery pack 6, the nickel sheet is placed in the mounting groove 7 of the lower hinge 3. At this time, the extension of the nickel sheet is inserted into the slot 12, thereby restricting the position of the nickel sheet. Then, one end of the battery pack 6 is inserted into the mounting groove 7. At this time, the slot 12 positions and fixes the position of the nickel sheet, and the mounting groove 7 positions and fixes the position of the battery pack 6, so that the spot welding points of the nickel sheet and the battery pack 6 are aligned, thereby avoiding the situation where the spot welding points are misaligned. In this design, the slot 12 plays the role of positioning and fixing the nickel sheet.

[0029] Figures 2-4 As shown, several magnetic blocks 13 for adsorbing nickel sheets are fixedly connected to the bottom surface of the mounting groove 7. Each mounting groove 7 is provided with two magnetic blocks 13. Therefore, when the nickel sheet is placed in the mounting groove 7, the magnetic blocks 13 adsorb the nickel sheet, thereby preventing the nickel sheet from separating from the slot 12 and further improving the fixing effect of the nickel sheet.

[0030] Figures 2-4 As shown, both the upper hinge 2 and the lower hinge 3 are provided with several spot welding grooves 5 that communicate with the mounting groove 7. When spot welding is performed, the battery pack 6 is located in the gap 8 and both ends are inserted into the mounting groove 7, and the nickel sheet is located in the mounting groove 7 and abuts against both ends of the battery pack 6.

[0031] Figures 2-4As shown, by setting the spot welding groove 5, after the battery pack 6 and the upper hinge 2 and lower hinge 3 are assembled, the spot welding points of the nickel sheet and the battery pack 6 are aligned. The spot welding equipment 1 can perform precise spot welding on the spot welding points of the nickel sheet and the battery pack 6 through the spot welding groove 5. This design further improves the accuracy of spot welding, thereby making the spot welding effect better.

[0032] Figures 2-4 As shown, after the battery pack 6 is assembled between the upper hinge 2 and the lower hinge 3, the assembled upper hinge 2 and lower hinge 3 are placed on the conveyor belt of the spot welding equipment 1. Thereafter, the spot welding equipment 1 can accurately spot weld the nickel sheet and the battery pack 6 through the spot welding tank 5.

[0033] Figures 2-4 As shown, baffles 10 are fixedly connected to both sides of the lower hinge 3. By setting baffles 10, the size of the gap can be precisely controlled. A positioning rod 11 is fixedly connected to the baffle 10. A positioning groove 15 is opened on the upper hinge 2 to facilitate the insertion of the positioning rod 11. When the upper hinge 2 and the lower hinge 3 are assembled, the positioning rod 11 is inserted into the positioning groove 15 and the gap 8 is formed.

[0034] Figures 2-4 As shown, by setting the positioning rod 11 and the positioning groove 15, after the battery pack 6 and the nickel sheet are assembled, the positioning rod 11 can be aligned with the positioning hole and inserted, so that both ends of the battery pack 6 can be accurately inserted into the mounting groove 7, which facilitates subsequent spot welding. This design plays the role of positioning the upper hinge 2 and the lower hinge 3 during assembly.

[0035] Figures 2-4 As shown, several magnetic blocks 14 that can attract each other are fixedly connected to both the baffle 10 and the upper hinge 2, which can initially fix the assembled upper hinge 2 and lower hinge 3.

[0036] Figures 2-4 As shown, both the lower hinge 3 and the upper hinge 2 are equipped with latches 4. When the latches 4 on the upper hinge 2 and the lower hinge 3 are locked, the upper hinge 2 and the lower hinge 3 are fixed together. This design serves to fix the upper hinge 2 and the lower hinge 3 and confine the battery pack 6 within the gap 8, preventing the upper hinge 2 and the lower hinge 3 from separating and falling apart during spot welding.

[0037] Figures 2-4 As shown, there are at least two latches 4, which improves the stability of the fixation.

[0038] Figures 2-4 As shown, each baffle 10 is fixedly connected to a handle 9, which makes it easy to pick up and move the upper hinge 2 and the lower hinge 3.

[0039] The above describes an automatic spot welding device for battery packs provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principle, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An automatic spot welding device for battery packs, characterized in that, The assembly includes an upper hinge and a lower hinge detachably connected to the upper hinge. When the upper and lower hinges are assembled together, there is a gap between them to facilitate the placement of the battery pack. Several mounting slots are provided on the opposite surfaces of the upper and lower hinges, and the mounting slots are shaped to match the battery pack. Several slots communicating with the mounting slots are provided on the lower hinge. When a nickel sheet is placed in the mounting slot, the extension of the nickel sheet is located in the slot. Several spot welding slots communicating with the mounting slots are provided on both the upper and lower hinges. During spot welding, both ends of the battery pack are inserted into the mounting slots within the gap, and the nickel sheet is located in the mounting slot and abuts against both ends of the battery pack.

2. The automatic spot welding equipment for battery packs according to claim 1, characterized in that, The depth of the card slot is less than the depth of the mounting slot.

3. The automatic spot welding equipment for battery packs according to claim 1, characterized in that, There is a gap between two adjacent card slots.

4. The automatic spot welding equipment for battery packs according to claim 1, characterized in that, Several magnetic blocks for adsorbing nickel sheets are fixedly connected to the bottom surface of the mounting groove.

5. The automatic spot welding equipment for battery packs according to claim 4, characterized in that, Each of the aforementioned mounting slots is provided with two magnetic blocks.

6. The automatic spot welding equipment for battery packs according to claim 1, characterized in that, Both sides of the lower hinge are fixedly connected to baffles, and positioning rods are fixedly connected to the baffles. The upper hinge has a positioning groove for easy insertion of the positioning rod. When the upper hinge and the lower hinge are assembled, the positioning rod is inserted into the positioning groove and a gap is formed.

7. The automatic spot welding equipment for battery packs according to claim 6, characterized in that, Several magnetic blocks that can attract each other are fixedly connected to both the baffle and the upper hinge.

8. The automatic spot welding equipment for battery packs according to claim 1, characterized in that, Both the lower and upper hinges are equipped with latches. When the latches on the upper and lower hinges are locked, the upper and lower hinges are fixed together.

9. The automatic spot welding equipment for battery packs according to claim 8, characterized in that, The latch has at least two.

10. The automatic spot welding equipment for battery packs according to claim 6, characterized in that, Each of the baffles is fixedly connected to a handle.

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