Positioning device for nickel-metal hydride battery tab welding
By designing a positioning device including a base, a vertical plate, a clamping mechanism and a cylinder, the automatic flip and positioning of the battery pack are realized, the problem of difficulty in flipping of the battery pack in the prior art is solved, and the efficiency of nickel-hydrogen battery ear welding is improved.
Patent Information
- Application Number
- CN202422218436.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-09-10
AI Technical Summary
The positioning device of existing automatic spot welding machines cannot achieve the flip of the battery pack, resulting in low welding efficiency of nickel-hydrogen battery ears and requires secondary clamping operation.
A positioning device including a base, a vertical plate, a clamping mechanism and a cylinder is designed. The flip and positioning of the battery pack is achieved through a bidirectional driving mechanism and a cylinder. The clamping mechanism uses a speed reduction motor and a screw to achieve fixed clamping of the battery pack, simplifying the flip and respot welding operation of the battery pack.
The nickel-hydrogen battery ear welding efficiency is improved, the secondary clamping step is reduced, and the use effect is improved.
Smart Images
Figure CN223301142U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery production, in particular to a positioning device for welding nickel-hydrogen battery tabs. Background Art
[0002] Nickel-metal hydride batteries are a type of storage battery with good performance. Conventional nickel-metal hydride batteries are usually 1.2V and have a small battery capacity. In order to meet the usage needs of different users, manufacturers will use tabs to weld nickel-metal hydride batteries to connect several nickel-metal hydride batteries in parallel or series to form a battery pack, thereby achieving the output voltage and battery capacity required by the user.
[0003] Currently, automatic spot welding machines for tab welding are available on the market. They are equipped with a welding head that can move in three axes and a positioning device for clamping the battery pack. After the battery pack is fixed with the positioning device, the tabs can be automatically spot welded on the battery pack through a preset program. However, the positioning devices of most automatic spot welding machines do not have the function of flipping the battery pack. After completing the welding work on one side of the battery pack, the battery pack needs to be released, flipped 180° and clamped again before welding can be performed on the other side of the battery pack. This is more troublesome to use and needs to be improved. Utility Model Content
[0004] The purpose of the utility model is to provide a positioning device for welding nickel-metal hydride battery tabs to solve the problems raised in the above background technology.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A positioning device for welding nickel-hydrogen battery tabs includes a base, and multiple mounting ears are fixedly connected to the outer walls on both sides of the base. The base is connected to two vertical plates through a two-way drive mechanism, and a shell is rotatably installed on both vertical plates. A clamping mechanism is installed on each shell, and one vertical plate is rotatably connected to the corresponding shell through a damping shaft. A first reduction motor is fixedly installed on the outer wall of the other vertical plate, and the output shaft of the first reduction motor is fixedly connected to the corresponding shell. A second cylinder is installed through a through hole at the bottom of the base, and a push rod end of the second cylinder is fixedly connected to a support plate. Two guide grooves are symmetrically provided on both sides of the support plate, and the vertical plates are located in the corresponding guide grooves.
[0007] As a further solution of the present invention: the bidirectional drive mechanism includes a first cylinder and two rotating shafts, the two rotating shafts are rotatably and symmetrically installed in the base, the outer walls of the rotating shafts are symmetrically provided with two spiral grooves, the outer walls of the rotating shafts and the corresponding parts of the spiral grooves are movably sleeved with connecting sleeves, the inner walls of the connecting sleeves and the corresponding parts of the spiral grooves are fixedly installed with guide blocks, the guide blocks are adapted to the spiral grooves, the top of the base and the corresponding parts of the guide grooves are penetrated by open grooves, the bottom end of the vertical plate extends into the base from the open groove and is fixedly connected with a movable block, the two sides of the movable block are fixedly connected to the corresponding connecting sleeves, the first cylinder is fixedly connected to the outer wall of the base, and the push rod end of the first cylinder is fixedly connected to a movable block.
[0008] As a further solution of the present invention: the clamping mechanism includes a second reduction motor fixedly installed at one end of the shell, and the output shaft of the second reduction motor is fixedly connected to a bidirectional screw after passing through the shell, and the bidirectional screw is rotatably connected to the inner wall of the shell, and the outer wall of the bidirectional screw is fitted with two sliders, and the slider is penetrated by a threaded hole that is compatible with the bidirectional screw, and the outer wall of the shell is penetrated by an open groove, and one end of the slider extends out of the open groove and is fixedly connected to an L-shaped splint.
[0009] As a further solution of the present invention: an anti-slip pad is fixedly installed on the inner wall of one side of the L-shaped splint.
[0010] As a further solution of the present invention: the length direction of the anti-slip pad is perpendicular to the length direction of the shell.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] When the utility model is in use, after the battery pack is placed on the support plate, the two-way driving mechanism is started to drive the two vertical plates close to the battery pack, and then the clamping mechanisms on the two shells are started to fix and clamp the two ends of the battery pack, so that the battery pack can be positioned on the support plate. After completing the spot welding of one side, the second cylinder is started to drive the support plate to descend, and then the first reduction motor is started to drive the battery pack to flip 180 degrees, and the second cylinder is started to reset the support plate to support the bottom of the battery pack again, so that the battery pack can be spot welded again, without the need for secondary clamping of the battery pack, which can effectively improve the welding efficiency of the tabs and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The figure is a structural schematic diagram of a positioning device for welding nickel-metal hydride battery tabs.
[0014] Figure 2 The figure is a schematic diagram of the structure of the clamping mechanism in a positioning device for welding nickel-metal hydride battery tabs.
[0015] Figure 3 The figure is a schematic structural diagram of a bidirectional drive mechanism in a positioning device for nickel-hydrogen battery tab welding.
[0016] Among them, the base 1, the mounting ear 2, the open groove 3, the first cylinder 4, the movable block 5, the rotating shaft 6, the spiral groove 7, the connecting sleeve 8, the through hole 9, the second cylinder 10, the support plate 11, the guide groove 12, the vertical plate 13, the first reduction motor 14, the damping rotating shaft 15, the shell 16, the second reduction motor 17, the bidirectional screw 18, the slider 19, the open groove 20, the L-shaped splint 21, the anti-slip pad 22, and the battery pack 23. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0018] See also Figures 1 to 3 In an embodiment of the utility model, a positioning device for welding a nickel-metal hydride battery tab includes a base 1, and a plurality of mounting ears 2 are fixedly connected to the outer walls on both sides of the base 1. The base 1 is connected to two vertical plates 13 through a bidirectional driving mechanism. A shell 16 is rotatably installed on both vertical plates 13, and a clamping mechanism is installed on each of the shells 16. One vertical plate 13 is rotatably connected to the corresponding shell 16 through a damping shaft 15, and a first reduction motor 14 is fixedly installed on the outer wall of the other vertical plate 13. The output shaft of the first reduction motor 14 is fixedly connected to the corresponding shell 16. A second cylinder 10 is installed on the bottom of the base 1 through a through hole 9, and a push rod end of the second cylinder 10 is fixedly connected to a support plate 11. Two guide grooves 12 are symmetrically provided on both sides of the support plate 11, and the vertical plates 13 are located in the corresponding guide grooves 12.
[0019] The utility model adopts the above-mentioned scheme. When in use, after the battery pack 23 is placed on the support plate 11, the two-way driving mechanism is started to drive the two vertical plates 13 close to the battery pack 23, and then the clamping mechanisms on the two shells 16 are started to fix and clamp the two ends of the battery pack 23, so that the battery pack 23 can be positioned on the support plate 11, and then the automatic spot welding machine is used to spot weld the pole ears on the battery pack 23. After the spot welding is completed, the second cylinder 10 is started to drive the support plate 11 to descend, and then the first reduction motor 14 is started to drive the battery pack 23 to flip 180°, and then the second cylinder 10 is started to reset the support plate 11 to support the bottom of the battery pack 23 again, and then the battery pack 23 can be spot welded again without the need for secondary clamping of the battery pack 23, which can effectively improve the welding efficiency of the pole ears and has a good use effect.
[0020] Specific combination Figure 3 In one embodiment of the present utility model, the bidirectional drive mechanism includes a first cylinder 4 and two rotating shafts 6, the two rotating shafts 6 are rotatably symmetrically installed in the base 1, and the outer walls of the rotating shafts 6 are symmetrically provided with two spiral grooves 7, and the outer walls of the rotating shafts 6 and the corresponding parts of the spiral grooves 7 are movably sleeved with connecting sleeves 8, and the inner walls of the connecting sleeves 8 and the corresponding parts of the spiral grooves 7 are fixedly installed with guide blocks (not shown in the figure), and the guide blocks are adapted to the spiral grooves 7. The top of the base 1 and the corresponding parts of the guide grooves 12 are penetrated by open grooves 3, and the bottom end of the vertical plate 13 is extended into the base 1 through the open grooves 3 and is fixedly connected to a movable block 5, and the two sides of the movable block 5 are fixedly connected to the corresponding connecting sleeves 8, the first cylinder 4 is fixedly connected to the outer wall of the base 1, and the push rod end of the first cylinder 4 is fixedly connected to a movable block 5.
[0021] By starting the first cylinder 4 to push the movable block 5 connected to it to move, the corresponding connecting sleeve 8 can be driven to move on the rotating shaft 6. The pole ear drives the rotating shaft 6 to rotate through the cooperation between the guide block and the spiral groove 7, and then drives the other movable block 5 to move at the same time, so as to realize the simultaneous reverse movement of the two vertical plates 13.
[0022] Specific combination Figure 2 In one embodiment of the present utility model, the clamping mechanism includes a second reduction motor 17 fixedly mounted at one end of the housing 16. The output shaft of the second reduction motor 17 penetrates into the housing 16 and is fixedly connected to a bidirectional screw 18. The bidirectional screw 18 is rotatably connected to the inner wall of the housing 16. The outer wall of the bidirectional screw 18 is fitted with two sliders 19. The sliders 19 are penetrated by threaded holes that are compatible with the bidirectional screw 18. The outer wall of the housing 16 is penetrated by an open slot 20. One end of the slider 19 extends out of the open slot 20 and is fixedly connected to an L-shaped clamping plate 21.
[0023] By starting the second reduction motor 17 , the bidirectional screw 18 can be driven to rotate, thereby utilizing the threaded cooperation between the bidirectional screw 18 and the slider 19 to drive the two L-shaped clamping plates 21 to move in opposite directions at the same time, thereby achieving fixed clamping of the battery pack 23 .
[0024] Specific combination Figure 2 On the basis of the previous embodiment, further, an anti-slip pad 22 is fixedly installed on the inner wall of one side of the L-shaped clamping plate 21, and the length direction of the anti-slip pad 22 is perpendicular to the length direction of the shell 16.
[0025] When clamping the battery pack 23, the two vertical plates 13 are first driven closer to each other through the bidirectional driving mechanism so that the two ends of the battery pack 23 are in contact with the inner wall of the L-shaped clamping plate 21 without the anti-slip pad 22. Then, the second reduction motor 17 is started to drive the L-shaped clamping plate 21 to move, and the anti-slip pad 22 can be used to clamp the battery pack 23.
[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A positioning device for nickel-metal hydride battery tab welding, characterized in that: The invention comprises a base (1), wherein the outer walls on both sides of the base (1) are fixedly connected with a plurality of mounting ears (2), the base (1) is connected to two vertical plates (13) through a bidirectional driving mechanism, a shell (16) is rotatably mounted on the two vertical plates (13), and a clamping mechanism is mounted on the shell (16), one vertical plate (13) is rotatably connected to the corresponding shell (16) through a damping shaft (15), a first reduction motor (14) is fixedly mounted on the outer wall of the other vertical plate (13), and the output shaft of the first reduction motor (14) is fixedly connected to the corresponding shell (16), a second cylinder (10) is installed through a through hole (9) at the bottom of the base (1), a push rod end of the second cylinder (10) is fixedly connected to a support plate (11), two guide grooves (12) are symmetrically provided on both sides of the support plate (11), and the vertical plates (13) are located in the corresponding guide grooves (12).
2. The positioning device for nickel-metal hydride battery tab welding according to claim 1, characterized in that: The bidirectional driving mechanism comprises a first cylinder (4) and two rotating shafts (6), the two rotating shafts (6) are rotatably symmetrically installed in the base (1), the outer walls of the rotating shafts (6) are symmetrically provided with two spiral grooves (7), the outer walls of the rotating shafts (6) and the corresponding parts of the spiral grooves (7) are both movably sleeved with connecting sleeves (8), the inner walls of the connecting sleeves (8) and the corresponding parts of the spiral grooves (7) are fixedly provided with guide blocks, the guide blocks are adapted to the spiral grooves (7), the top of the base (1) and the corresponding parts of the guide grooves (12) are both penetrated with open grooves (3), the bottom end of the vertical plate (13) is extended into the base (1) through the open grooves (3) and is fixedly connected with a movable block (5), the two sides of the movable block (5) are fixedly connected to the corresponding connecting sleeves (8), the first cylinder (4) is fixedly connected to the outer wall of the base (1), and the push rod end of the first cylinder (4) is fixedly connected to a movable block (5).
3. The positioning device for nickel-metal hydride battery tab welding according to claim 1, characterized in that: The clamping mechanism includes a second reduction motor (17) fixedly mounted on one end of the housing (16); the output shaft of the second reduction motor (17) is inserted into the housing (16) and fixedly connected to a bidirectional screw (18); the bidirectional screw (18) is rotatably connected to the inner wall of the housing (16); the outer wall of the bidirectional screw (18) is fitted with two sliders (19); a threaded hole matching the bidirectional screw (18) is provided through the slider (19); an open slot (20) is provided through the outer wall of the housing (16); one end of the slider (19) extends from the open slot (20) and is fixedly connected to an L-shaped clamp (21).
4. A nickel-metal hydride battery tab welding positioning device according to claim 3, characterized in that: An anti-slip pad (22) is fixedly mounted on the inner wall of one side of the L-shaped clamping plate (21).
5. The positioning device for nickel-metal hydride battery tab welding according to claim 4, characterized in that: The length direction of the anti-slip pad (22) is perpendicular to the length direction of the housing (16).