Lithium battery welding clamp

Abstract

The utility model discloses a lithium battery welding clamp, and relates to the field of lithium battery welding. By arranging the sliding block, the sliding rod, the extrusion plate, the fixing block, the teeth, the telescopic rod, the first spring, the clamping plate, a gear, a bidirectional threaded rod, a knob, an extrusion block, a supporting block and a second spring, when a lithium battery is clamped, the fixing requirements of the lithium batteries with different sizes can be quickly and accurately met only by manually pushing a limiting plate; the compatibility and universality of the device are greatly improved, the tedious operation of frequently replacing the clamp due to the size difference of the batteries is reduced, the extrusion block is tightly supported by the supporting block by screwing the knob, and the limiting plate is limited, so that the lithium batteries can be conveniently and stably fixed, the working efficiency is effectively improved, and the practicability is high. And it is ensured that the lithium battery is stably clamped in the welding process, the operation process is relatively simple, convenient and smooth, and the labor intensity and the operation difficulty are reduced.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery welding, in particular to a lithium battery welding fixture. Background Art

[0002] Before using a lithium battery as a power source, the tab at one end of the lithium battery needs to be welded to a specific flexible circuit board. The quality of lithium battery welding directly affects the performance, safety and service life of the battery. Good welding can ensure stable electrical connections inside the battery, reduce contact resistance, and prevent overheating, energy loss and other problems during charging and discharging.

[0003] In the lithium battery welding process, welding fixtures play a vital role. For example, a lithium battery welding fixture disclosed in Chinese patent No. CN221910387U includes a base with a receiving slot. A limit block group for clamping the lithium battery is slidably arranged on both sides of the receiving slot on the base. The limit block group is also provided with a storage slot for placing the circuit board on the side close to the receiving slot. By placing the lithium battery in the receiving slot and then adjusting the position of the limit block group, the limit block group can clamp lithium batteries of different sizes, and then place the circuit board in the storage slot to complete the relative positioning welding of the lithium battery and the circuit board, so as to achieve the fixing and locking of the lithium battery during the welding process, avoid the lithium battery and the circuit board from being misaligned due to external factors such as device vibration, and be compatible with the welding processing of lithium batteries of multiple sizes.

[0004] However, the above device has certain drawbacks during use. The adjustment of the limit block requires manual twisting of multiple sets of push rods, and the clamping operation of the clamping block requires manual adjustment of multiple sets of rotating shafts and pin holes. This operation method is extremely cumbersome and seriously affects work efficiency. Therefore, further improvement is needed. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide a lithium battery welding fixture to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium battery welding fixture, comprising a base and a limit plate, a sliding rod fixedly installed inside the base, and a limiting plate slidably installed on the outer wall of the sliding rod, and a slider fixedly installed on the bottom of the limit plate, a splint rotatably installed on the top of the limit plate, and a gear fixedly installed on the end of the splint, an extrusion plate slidably installed on the outer wall of the limit plate, and a fixed block fixedly installed on the end of the extrusion plate, the outer wall of the limit plate is fixedly installed with teeth meshing with the bottom of the gear, a telescopic rod fixedly connected to the outer wall of the extrusion plate is fixedly installed on the outer wall of the limit plate, and a first spring is sleeved on the outer wall of the telescopic rod, a two-way threaded rod is rotatably installed on the bottom of the base, and a knob is fixedly installed on the end of the two-way threaded rod, an extrusion block is slidably installed inside the slider, and a second spring is fixedly installed on the outer wall of the extrusion block, and the outer wall of the two-way threaded rod is threadedly connected to a support block slidably connected to the outer wall of the extrusion block.

[0007] By adopting the above technical solution, when clamping the lithium battery, it is only necessary to manually push the limit plate to quickly and accurately adapt to the fixing requirements of lithium batteries of different sizes, which greatly improves the compatibility and versatility of the device and reduces the tedious operation of frequently replacing the clamps due to differences in battery sizes. By turning the knob to make the support block tighten the extrusion block and limit the limit plate, the lithium battery can be conveniently and firmly fixed, which effectively improves work efficiency and ensures the firm clamping of the lithium battery during the welding process, making the operation process relatively simple and smooth, and reducing labor intensity and operation difficulty.

[0008] Furthermore, two groups of sliding rods are symmetrically installed on both sides of the base, and the outer walls of the two groups of sliding rods are slidably connected to the two ends of the limiting plate.

[0009] By adopting the above technical solution, the sliding and limiting of the limit plate are made more stable, thereby enhancing the stability of the equipment.

[0010] Furthermore, the length of the clamping plate is smaller than the length of the limiting plate, and the width of the clamping plate is larger than the thickness of the limiting plate, and the outer wall of the bottom of the clamping plate fits the outer wall of the lithium battery.

[0011] By adopting the above technical solution, the top of the lithium battery can be fixed by rotating the clamping plate to adapt to lithium batteries of different specifications.

[0012] Furthermore, the gears are symmetrically arranged at both ends of the bottom of the splint, and multiple groups of teeth are arranged on the outer wall of the top of the extrusion plate corresponding to the gears.

[0013] By adopting the above technical solution, the limiting block is pushed to limit the lithium battery, and the extrusion plate is compressed at the same time, and the splint is driven by the gear to limit the top of the lithium battery.

[0014] Furthermore, the slider is designed in a "U" shape as a whole, and the width of the slider is smaller than the thickness of the bottom of the base.

[0015] By adopting the above technical solution, the slider slides in the bottom of the base, and the slider is limited by the extrusion block.

[0016] Furthermore, two groups of extrusion blocks are symmetrically arranged on both sides of the bidirectional threaded rod, and the outer wall of the extrusion block fits with the inner wall of the slider, one end of the second spring fits with the outer wall of the extrusion block, and the other end of the second spring fits with the outer wall of the base.

[0017] By adopting the above technical solution, the bidirectional threaded rod can be rotated by turning the knob to achieve convenient and stable limiting of the limit plate, and the second spring can reset the extrusion block to facilitate releasing the limit.

[0018] Furthermore, the support block is designed to be truncated cone-shaped as a whole, and the support blocks are symmetrically arranged at both ends of the bidirectional threaded rod, and the outer wall of the support block is in contact with the outer wall of the extrusion block.

[0019] By adopting the above technical solution, the limiting plate can be conveniently and stably limited by controlling the movement of the support block, thereby achieving the clamping of lithium batteries of different specifications.

[0020] Furthermore, one end of the first spring is in contact with the outer wall of the limiting plate, and the other end of the first spring is in contact with the outer wall of the extrusion plate.

[0021] By adopting the above technical solution, after the extrusion force of the extrusion plate is released, the first spring resets the extrusion plate and drives the clamping plate to rotate, thereby releasing the top limit of the lithium battery.

[0022] In summary, the present invention has the following beneficial effects:

[0023] The utility model is provided with a slider, a slide rod, an extrusion plate, a fixed block, teeth, a telescopic rod, a first spring, a clamping plate, a gear, a bidirectional threaded rod, a knob, an extrusion block, a support block and a second spring. When clamping a lithium battery, it is only necessary to manually push the limit plate to quickly and accurately adapt to the fixing requirements of lithium batteries of different sizes, which greatly improves the compatibility and versatility of the device and reduces the tedious operation of frequently replacing the clamp due to differences in battery sizes. By turning the knob to tighten the extrusion block and limit the limit plate, the lithium battery can be conveniently and firmly fixed, which effectively improves work efficiency and ensures that the lithium battery is firmly clamped during the welding process. The operation process is relatively simple and smooth, and the labor intensity and difficulty of operation are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another perspective;

[0026] Figure 3 This is a schematic side-sectional three-dimensional structural diagram of the base of the utility model;

[0027] Figure 4 This is a schematic diagram of the front sectional three-dimensional structure of the base of the utility model;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model without the base and the sliding rod.

[0029] In the figure: 1. base; 2. limit plate; 21. slider; 3. slide rod; 4. extrusion plate; 41. fixed block; 42. teeth; 43. telescopic rod; 44. first spring; 5. splint; 51. gear; 6. two-way threaded rod; 61. knob; 62. extrusion block; 63. support block; 64. second spring. DETAILED DESCRIPTION

[0030] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] The following describes an embodiment of the present invention based on its overall structure.

[0032] A lithium battery welding fixture, such as Figure 1 - Figure 5As shown, it includes a base 1 and a limit plate 2, a sliding rod 3 is fixedly installed inside the base 1, and the outer wall of the sliding rod 3 is slidably installed with the limit plate 2, and a slider 21 is fixedly installed at the bottom of the limit plate 2, a splint 5 is rotatably installed on the top of the limit plate 2, and a gear 51 is fixedly installed on the end of the splint 5, an extrusion plate 4 is slidably installed on the outer wall of the limit plate 2, and a fixed block 41 is fixedly installed on the end of the extrusion plate 4, and a tooth 42 meshing with the bottom of the gear 51 is fixedly installed on the outer wall of the limit plate 2, a telescopic rod 43 fixedly connected to the outer wall of the extrusion plate 4 is fixedly installed on the outer wall of the limit plate 2, and a first spring 44 is provided on the outer wall of the telescopic rod 43, a bidirectional threaded rod 6 is rotatably installed on the bottom of the base 1, and a knob 61 is fixedly installed on the end of the bidirectional threaded rod 6, and the inner sliding arrangement of the slider 21 It is equipped with an extrusion block 62, and a second spring 64 is fixedly installed on the outer wall of the extrusion block 62. The outer wall of the bidirectional threaded rod 6 is threadedly connected to a support block 63 that is slidably connected to the outer wall of the extrusion block 62, so that when clamping the lithium battery, it is only necessary to manually push the limit plate 2 to quickly and accurately adapt to the fixing requirements of lithium batteries of different sizes, which greatly improves the compatibility and versatility of the device and reduces the tedious operation of frequently replacing the clamp due to differences in battery sizes. By turning the knob 61 to make the support block 63 tighten the extrusion block 62 and limit the limit plate 2, the lithium battery can be conveniently and firmly fixed, which effectively improves work efficiency and ensures that the lithium battery is firmly clamped during the welding process, making the operation process relatively simple and smooth, and reducing labor intensity and operation difficulty.

[0033] See also Figure 1 - Figure 3 Two groups of slide rods 3 are symmetrically installed on both sides of the base 1, and the outer walls of the two groups of slide rods 3 are slidably connected to the two ends of the limit plate 2, making the sliding and limiting of the limit plate 2 more stable and enhancing the stability of the equipment.

[0034] See also Figure 1 - Figure 5 The length of the splint 5 is smaller than the length of the limiting plate 2, and the width of the splint 5 is greater than the thickness of the limiting plate 2, and the outer wall of the bottom of the splint 5 fits the outer wall of the lithium battery, so that the top of the lithium battery can be fixed by rotating the splint 5 to adapt to lithium batteries of different specifications.

[0035] See also Figure 2 - Figure 5 The gears 51 are symmetrically arranged at both ends of the bottom of the splint 5, and the teeth 42 are located on the outer wall of the top of the extrusion plate 4 and are arranged in multiple groups corresponding to the gears 51, so that the pushing limit block limits the lithium battery while the extrusion plate 4 is compressed, and the splint 5 is driven by the gear 51 to limit the top of the lithium battery.

[0036] See also Figure 3 and Figure 5The slider 21 is designed in a "U" shape as a whole, and the width of the slider 21 is smaller than the thickness of the bottom of the base 1, so that the slider 21 slides in the bottom of the base 1, and the slider 21 is limited by the extrusion block 62.

[0037] See also Figure 3 - Figure 5 There are two groups of extrusion blocks 62 symmetrically arranged on both sides of the bidirectional threaded rod 6, and the outer wall of the extrusion block 62 is in contact with the inner wall of the slider 21, one end of the second spring 64 is in contact with the outer wall of the extrusion block 62, and the other end of the second spring 64 is in contact with the outer wall of the base 1, so that the bidirectional threaded rod 6 can be rotated by turning the knob 61 to achieve convenient and stable limiting of the limit plate 2, and the second spring 64 can reset the extrusion block 62 to facilitate releasing the limit.

[0038] See also Figure 3 - Figure 5 The support block 63 is designed as a whole in a truncated cone shape, and the support block 63 is symmetrically arranged at both ends of the bidirectional threaded rod 6, and the outer wall of the support block 63 is in contact with the outer wall of the extrusion block 62, so that the limit plate 2 can be conveniently and firmly limited by controlling the movement of the support block 63, thereby achieving the clamping of lithium batteries of different specifications.

[0039] See also Figure 2 - Figure 5 One end of the first spring 44 fits against the outer wall of the limit plate 2, and the other end of the first spring 44 fits against the outer wall of the extrusion plate 4, so that after the extrusion force of the extrusion plate 4 is released, the first spring 44 resets the extrusion plate 4 and drives the splint 5 to rotate, releasing the top limit of the lithium battery.

[0040] The utility model discloses a working principle is: in use, the first step is the lithium battery of waiting to weld is placed in the base 1, then, manually push the limiting plate 2, when the extrusion plate 4 of limiting plate 2 outer wall contacts with the outer wall of lithium battery, extrusion plate 4 will slide in the inside limiting plate 2 to the direction of far away from lithium battery because of the extrusion, in this process, the sliding of extrusion plate 4 will drive the rotation of gear 51 connected with it, and then promote the rotation of clamping plate 5, until clamping plate 5 can tightly hold the top of lithium battery, at this moment, limiting plate 2 plays the role of limiting to lithium battery, makes it unable to continue to slide, then, manually screw knob 61, drive the rotation of two -way threaded rod 6, the rotation of two -way threaded rod 6 will drive the support block 63 to the center position sliding, so as to extrude two groups of extrusion block 62 to opposite direction, until extrusion block 62 outer wall and the inner wall of sliding block 21 both sides are closely fitted, to this realization to the restriction of limiting plate 2, and then reach the steady and convenient clamping state of lithium battery, when needing to take out lithium battery, manually reverse screw knob 61, and the support block 63 will slide reversely, and the extrusion of extrusion block 62 to sliding block 21 is removed, and the restriction of limiting plate 2 is removed, under the elastic force of first spring 44, limiting plate 2 will be far away from lithium battery, and the limiting of clamping plate 5 to lithium battery is also removed, so this can take out lithium battery smoothly.

[0041] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and it is not the limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in the suitable way, and the person skilled in the art can make the modification, replacement and change of embodiment without the creative contribution after reading the whole specification without departing from the principles and the tenet of the utility model, but as long as in the claim range of the utility model, it is protected by the patent law.

Claims

1. A lithium battery welding fixture, comprising a base (1) and a limiting plate (2), characterized in that: A slide bar (3) is fixedly installed inside the base (1), and a limiting plate (2) is slidably installed on the outer wall of the slide bar (3). A slider (21) is fixedly installed at the bottom of the limiting plate (2). A clamping plate (5) is rotatably installed at the top of the limiting plate (2), and a gear (51) is fixedly installed at the end of the clamping plate (5). An extrusion plate (4) is slidably installed on the outer wall of the limiting plate (2), and a fixing block (41) is fixedly installed at the end of the extrusion plate (4). A tooth (42) meshing with the bottom of the gear (51) is fixedly installed on the outer wall of the limiting plate (2). A telescopic rod (43) fixedly connected to the outer wall of the extrusion plate (4) is fixedly installed on the outer wall of the limiting plate (2), and a first spring (44) is sleeved on the outer wall of the telescopic rod (43). A bidirectional threaded rod (6) is rotatably installed at the bottom of the base (1), and a knob (61) is fixedly installed at the end of the bidirectional threaded rod (6). An extrusion block (62) is slidably installed inside the slider (21), and a second spring (64) is fixedly installed on the outer wall of the extrusion block (62). A support block (63) slidably connected to the outer wall of the extrusion block (62) is threadedly connected to the outer wall of the bidirectional threaded rod (6).

2. A lithium battery welding fixture according to claim 1, characterized in that: Two groups of slide bars (3) are symmetrically installed on both sides of the base (1), and the two ends of the limiting plate (2) are slidably connected to the outer walls of the two groups of slide bars (3).

3. The lithium battery welding fixture according to claim 1, characterized in that: The length of the clamping plate (5) is less than the length of the limiting plate (2), the width of the clamping plate (5) is greater than the thickness of the limiting plate (2), and the outer wall of the bottom of the clamping plate (5) is in contact with the outer wall of the lithium battery.

4. The lithium battery welding fixture according to claim 1, characterized in that: The gears (51) are symmetrically arranged at both ends of the bottom of the clamping plate (5), and multiple groups of teeth (42) corresponding to the gears (51) are arranged on the outer wall of the top of the extrusion plate (4).

5. The lithium battery welding fixture according to claim 1, characterized in that: The slider (21) is designed in an overall "return" shape, and the width of the slider (21) is less than the thickness of the bottom of the base (1).

6. The lithium battery welding fixture according to claim 1, characterized in that: Two groups of extrusion blocks (62) are symmetrically arranged on both sides of the bidirectional threaded rod (6), the outer wall of the extrusion block (62) is in contact with the inner wall of the slider (21), one end of the second spring (64) is in contact with the outer wall of the extrusion block (62), and the other end of the second spring (64) is in contact with the outer wall of the base (1).

7. The lithium battery welding fixture according to claim 1, characterized in that: The support block (63) is designed in an overall frustum shape, the support blocks (63) are symmetrically arranged at both ends of the bidirectional threaded rod (6), and the outer wall of the support block (63) is in contact with the outer wall of the extrusion block (62).

8. The lithium battery welding fixture according to claim 1, characterized in that: One end of the first spring (44) is in contact with the outer wall of the limiting plate (2), and the other end of the first spring (44) is in contact with the outer wall of the extrusion plate (4).

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