Lithium battery piece welding device and welding equipment

Abstract

The utility model relates to a lithium battery chip welding device in the technical field of welding equipment, the welding equipment comprises a battery cell clamping mechanism, a chip positioning mechanism and a base, and the battery cell clamping mechanism and the chip clamping mechanism are both detachably installed on the base; a chip mounting assembly is movably fixed on the chip positioning mechanism, a chip placing groove is formed in the chip mounting assembly, and a positioning assembly is arranged on the chip placing groove, so that the problem that the manual load is relatively high due to the fact that the chip and the lithium battery are fixed manually when the chip is welded manually in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, and in particular to a lithium battery bar welding device and welding equipment. Background Art

[0002] In the production and processing of lithium batteries, it is necessary to weld the poles and tabs on the top of the lithium batteries. The conventional welding method of existing lithium batteries is generally manual fixed welding. These processes are all completed manually, which increases the time consumption of lithium battery welding. In addition, the production efficiency of manual production is low, the labor load is high, and the quality of the welded products cannot be guaranteed. Summary of the invention

[0003] The utility model aims at the shortcomings of the prior art and provides a lithium battery tab welding device and welding equipment, which solves the problem that in the prior manual tab welding, the tab and the lithium battery are fixed manually, resulting in a high manual load.

[0004] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0005] A lithium battery tab welding device comprises a battery cell clamping mechanism, a tab positioning mechanism and a base, wherein the battery cell clamping mechanism and the tab positioning mechanism are both detachably mounted on the base; a tab mounting assembly is movably fixed on the tab positioning mechanism, a tab placement groove is provided on the tab mounting assembly, and a positioning assembly is provided on the tab placement groove.

[0006] Optionally, the battery cell clamping mechanism includes a first clamping assembly, which is movably disposed on the base and is used to fix a first relative side wall of the lithium battery.

[0007] Optionally, the battery cell clamping mechanism also includes a second clamping assembly, which is movably arranged on the base and is used to fix the second relative side wall of the lithium battery, and the clamping direction of the second clamping assembly is perpendicular to the clamping direction of the first clamping assembly.

[0008] Optionally, the first clamping assembly and the second clamping assembly both include symmetrically arranged clamping plates and adjustment plates fixedly connected to the clamping plates, and the adjustment plates are movably arranged on the base.

[0009] Optionally, the adjustment plate is provided with more than one set of limiting holes, and screws are provided in the limiting holes, one end of the screw is slidably engaged with the limiting hole, and the other end of the screw is mounted on the base.

[0010] Optionally, avoidance surfaces are further provided on the side walls opposite to the symmetrically arranged pressing plates.

[0011] Optionally, the avoidance surface is arranged at an obtuse angle to the side wall opposite to the pressing plate.

[0012] Optionally, the bar positioning mechanism includes symmetrically arranged moving components, the symmetrically arranged moving components are slidably arranged on the base, and the moving components are slidably matched with the bar mounting components in the vertical direction.

[0013] Optionally, the bar mounting assembly includes a protrusion, which is embedded in the moving assembly, and a screw is provided on the protrusion, and one end of the screw is slidably matched with the moving assembly.

[0014] A welding device, comprising any one of the lithium battery tab welding devices described above.

[0015] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0016] The lithium battery is adjusted and fixed by the first clamping assembly and the second clamping assembly, and the position of the tab is adjusted by the tab positioning mechanism and the tab mounting assembly, so that the tab and the lithium battery maintain effective contact on the welding surface after the position is adjusted, avoiding the problem of high manual load caused by manual fixation, and the first clamping assembly and the second clamping assembly can be applicable to lithium batteries of various sizes, thereby improving the applicability of the lithium battery tab welding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A three-dimensional diagram of a lithium battery tab welding device proposed in the first embodiment;

[0019] Figure 2 This is a position structure diagram of the first clamping assembly and the second clamping assembly proposed in the first embodiment;

[0020] Figure 3 This is a position structure diagram of the limiting holes and screws proposed in the first embodiment;

[0021] Figure 4 This is a position structure diagram of the mobile component proposed in the first embodiment;

[0022] Figure 5 This is a structural diagram of the bar installation assembly proposed in this embodiment.

[0023] Figure numerals: 1. battery cell clamping mechanism; 2. tab positioning mechanism; 3. base; 4. tab mounting assembly; 5. tab placement slot; 6. positioning assembly; 7. first clamping assembly; 8. second clamping assembly; 9. clamping plate; 10. adjustment plate; 11. limiting hole; 12. screw; 13. adjustment hole; 14. avoidance surface; 15. moving assembly; 16. bump; 17. recessed portion; 18. lithium battery; 19. tab. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the embodiments. The following embodiments are intended to explain the present invention but the present invention is not limited to the following embodiments.

[0025] Embodiment 1

[0026] like Figure 1 and Figure 5 As shown, a lithium battery tab welding device includes a battery cell clamping mechanism 1, a tab positioning mechanism 2 and a base 3. The battery cell clamping mechanism 1 and the tab positioning mechanism 2 can be detachably mounted on the base 3; a tab mounting assembly 4 is movably fixed on the tab positioning mechanism 2, a tab placement groove 5 is provided on the tab mounting assembly 4, and a positioning assembly 6 is provided on the tab placement groove 5.

[0027] Figure 1 The present invention shows the usage state of the lithium battery tab welding device when the lithium battery 18 and the tab 19 are installed. When the tab 19 of the lithium battery 18 is positioned and welded, the lithium battery 18 is first placed in the battery cell clamping mechanism 1, and the side wall of the lithium battery 18 is fixed by the battery cell clamping mechanism 1. Then, the tab 19 is positioned and placed on the tab placement groove 5 through the positioning component 6. Finally, the tab installation component 4 is adjusted through the tab positioning mechanism 2, and then the position of the tab 19 on the tab placement groove 5 is adjusted, so as to achieve the purpose of adjusting the relative position between the tab 19 and the lithium battery 18, so that the tab 19 is finally located at the welding position of the lithium battery 18, and effective contact between the tab 19 and the lithium battery 18 is achieved.

[0028] The positioning assembly 6 in this embodiment refers to a positioning column, which is only used as an example. In other embodiments, a pressing adjustment block can be provided on the bar mounting assembly 4 (not shown). Figure 1), the purpose of fixing the bar 19 on the bar placement groove 5 for positioning is achieved. Specifically, a clamping adjustment block is set on the upper surface of the bar installation component 4 (the fixation between the clamping adjustment block and the bar installation component is achieved by screws), and the clamping adjustment block is partially located above the bar placement groove 5. When placing and installing the bar 19, the bar 19 is first placed in the bar placement groove 5, and then the screw is rotated. Through the threaded cooperation between the screw and the bar installation component 4, and the threaded cooperation between the screw and the clamping adjustment block, the part of the clamping adjustment block located on the bar placement groove 5 presses the bar 19, thereby achieving position fixation.

[0029] Furthermore, if Figure 1 and Figure 2 As shown, the battery cell clamping mechanism 1 includes a first clamping assembly 7, which is movably arranged on the base 3 and is used to fix the first relative side wall of the lithium battery 18; the battery cell clamping mechanism 1 also includes a second clamping assembly 8, which is movably arranged on the base 3 and is used to fix the second relative side wall of the lithium battery 18, and the clamping direction of the second clamping assembly 8 is perpendicular to the clamping direction of the first clamping assembly 7.

[0030] When the lithium battery 18 is fixed and clamped, the lithium battery 18 is placed on the base 3. At this time, the first relative side wall and the second relative side wall of the lithium battery 18 are respectively pressed and positioned by the first clamping component 7 and the second clamping component 8. In the present embodiment, the first relative side wall and the second relative side wall of the lithium battery 18 refer to: the four groups of side walls of the lithium battery 18 are divided into two groups of relative side walls according to two relative groups of side walls as a group. For ease of understanding, the side walls of the front, right, rear and left four directions corresponding to the lithium battery 18 in three-dimensional space are used for explanation. At this time, the side walls in the front and rear directions are divided into the first relative side walls; the side walls in the left and right directions are divided into the second relative side walls, so that the clamping direction of the second clamping component 8 is perpendicular to the clamping direction of the first clamping component 7, thereby pressing and positioning the lithium battery 18 in four directions.

[0031] Furthermore, if Figure 2 and Figure 3 As shown, the first clamping assembly 7 and the second clamping assembly 8 both include a symmetrically arranged clamping plate 9 and an adjusting plate 10 fixedly connected to the clamping plate 9, and the adjusting plate 10 is movably arranged on the base 3; the adjusting plate 10 is provided with more than one set of limiting holes 11, and the limiting holes 11 are provided with screws 12, one end of the screw 12 is slidably matched with the limiting hole 11, and the other end of the screw 12 is installed on the base 3.

[0032] Since the sizes of lithium batteries 18 that need to weld the tabs 19 are not unique, in order to make the lithium battery tab welding device suitable for welding lithium battery tabs of more sizes, this embodiment sets an adjustment plate 10 to drive the clamping plate 9, thereby adjusting the distance between the two symmetrical groups of clamping plates 9, so as to clamp and fix the lithium battery 18.

[0033] Among them, the adjustment method of the adjustment plate 10 is as follows: first, the screw 12 is partially unscrewed from the base 3 so that a certain looseness is maintained between the screw 12 and the limiting hole 11, and then the adjustment plate 10 is moved to make the screw 12 slide in the limiting hole 11. Since the limiting hole 11 is set to an elliptical shape, the screw 12 can be fine-tuned in the length direction of the limiting hole 11. During this process, the screw 12 is always located in the limiting hole 11, which plays a role in adjusting the limit.

[0034] At the same time, in this embodiment, in addition to fine-tuning the clamping plate 9 by the adjustment plate 10, if there is a larger distance adjustment, the adjustment plate 10 can also be used through a plurality of adjustment holes 13 set on the base 3 to achieve the distance adjustment of the larger-sized lithium battery 18 of the clamping plate 9.

[0035] Specifically, when the distance to be adjusted is large, the screw 12 is taken out of the current adjustment hole 13, and then the screw 12 is screwed into the adjacent or other adjustment hole 13 for fixation according to actual needs, so that a large distance can be adjusted in time. At the same time, after replacing the adjustment hole 13, the aforementioned fine-tuning method can be combined to achieve a more precise distance adjustment between the clamping plates 9.

[0036] On the other hand, the adjustment plate 10 is slidably set on the base 3. In addition to achieving adjustment through the limit hole 11, the adjustment plate 10 can also be displaced by setting a cylinder or an electric slide rod, so that the adjustment plate 10 drives the clamping plate 9 to clamp and fix the lithium battery 18. In this embodiment, the adjustment plate 10 and the clamping plate 9 can be set to be integrally formed and L-shaped.

[0037] like Figure 2 As shown, avoidance surfaces 14 are also provided on the side walls opposite to the symmetrically arranged pressing plates 9, and the avoidance surfaces 14 are set at an obtuse angle to the side walls opposite to the pressing plates 9. At this time, the interface of the pressing plates 9 is set in a right-angled trapezoid. Therefore, through the setting of the avoidance surfaces 14, when the lithium battery 18 is placed in the process, the part where the pressing plates 9 first contact with the lithium battery 18 can avoid being scratched by the lithium battery 18 through the avoidance surfaces 14. On the other hand, the avoidance surfaces 14 can also be set as an arc surface, so as to avoid being scratched by the lithium battery 18 through the setting of the arc surface chamfer.

[0038] Furthermore, if Figure 4 and Figure 5As shown, the bar positioning mechanism 2 includes a symmetrically arranged moving component 15, which is symmetrically arranged and slidingly arranged on the base 3, and the moving component 15 is slidingly matched with the bar mounting component 4 in the vertical direction, and the bar mounting component 4 includes a protrusion 16, which is embedded in the moving component 15, and a screw 12 is arranged on the protrusion 16, and one end of the screw 12 is slidingly matched with the moving component 15.

[0039] Specifically, the moving component 15 is an L-shaped moving block, which is adjusted on the base 3 in the same manner as the first clamping component 7 and the second clamping component 8. At the same time, a recessed portion 17 is also provided on the moving component 15, and the recessed portion 17 is adapted to the protrusion 16. The recessed portion 17 and the protrusion 16 are fixed by screws 12, and the protrusion 16 is slidably matched on the recessed portion 17 in the vertical direction. In this embodiment, the structural setting of the moving component 15 and the tab mounting component 4 when sliding in the vertical direction is the same as the sliding setting of the first clamping component 7 and the second clamping component 8 on the base 3, and is achieved by means of screws 12 combined with limiting holes 11. Since the specific process of sliding has been described above, it will not be further described here.

[0040] Thus, by the movable setting of the moving component 15 on the base 3, the moving component 15 can drive the movement of the tab installation component 4 in the horizontal direction, so that the tab installation component 4 drives the tab 19 installed on the tab placement groove 5 to adjust its position in the horizontal direction; on the other hand, the moving component 15 and the tab installation component 4 slide in the vertical direction, so that the protrusion 16 is adjusted in the vertical direction on the recessed portion 17, and then the protrusion 16 drives the tab 19 installed on the tab placement groove 5 to adjust its position in the vertical direction, so that the tab 19 can be adjusted to a position that effectively contacts the lithium battery 18 both horizontally and vertically.

[0041] The lithium battery 18 is thereby adjusted and fixed by the first clamping assembly and the second clamping assembly, and the position of the tab 19 is adjusted by the tab positioning mechanism 2 and the tab mounting assembly 4, so that the tab 19 and the lithium battery 18 maintain effective contact of the welding surface after the position is adjusted, thereby avoiding the problem of high manual load caused by manual fixation, and the first clamping assembly and the second clamping assembly can be applicable to lithium batteries 18 of various sizes, thereby improving the applicability of the lithium battery tab welding device.

[0042] Embodiment 2

[0043] A welding device, the welding device includes the lithium battery tab welding device described in Example 1. Specifically, the welding device is provided with a welding table for installing the lithium battery tab welding device described in Example 1, and is provided with a welding head for welding the tab 19. When the staff fixes the position of the lithium battery 18 and adjusts the effective contact position of the tab 19 and the lithium battery 18, automatic welding is achieved through the welding head.

[0044] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different. All equivalent or simple changes made based on the structure, features and principles described in the concept of the utility model patent are included in the protection scope of the utility model patent. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A lithium battery tab welding device, characterized in that: It includes a battery cell clamping mechanism, a bar positioning mechanism and a base, wherein the battery cell clamping mechanism and the bar positioning mechanism can be detachably mounted on the base; a bar mounting assembly is movably fixed on the bar positioning mechanism, a bar placement groove is provided on the bar mounting assembly, and a positioning assembly is provided on the bar placement groove.

2. A lithium battery tab welding device according to claim 1, characterized in that: The battery cell clamping mechanism includes a first clamping assembly, which is movably disposed on the base and is used to fix the first opposite side wall of the lithium battery.

3. A lithium battery tab welding device according to claim 2, characterized in that: The battery cell clamping mechanism also includes a second clamping assembly, which is movably arranged on the base and is used to fix the second relative side wall of the lithium battery. The clamping direction of the second clamping assembly is perpendicular to the clamping direction of the first clamping assembly.

4. A lithium battery tab welding device according to claim 3, characterized in that: The first clamping assembly and the second clamping assembly both include a symmetrically arranged clamping plate and an adjusting plate fixedly connected to the clamping plate, and the adjusting plate is movably arranged on the base.

5. A lithium battery tab welding device according to claim 4, characterized in that: The adjustment plate is provided with more than one set of limiting holes, and screws are provided in the limiting holes. One end of the screw is slidably matched with the limiting hole, and the other end of the screw is mounted on the base.

6. A lithium battery tab welding device according to claim 4, characterized in that: Avoidance surfaces are also arranged on the opposite side walls of the symmetrically arranged pressing plates.

7. A lithium battery tab welding device according to claim 6, characterized in that: The avoidance surface is arranged at an obtuse angle to the side wall opposite to the pressing plate.

8. A lithium battery tab welding device according to claim 1, characterized in that: The flap positioning mechanism includes symmetrically arranged moving components, which are symmetrically arranged on the base for sliding, and the moving components are slidably matched with the flap mounting components in the vertical direction.

9. A lithium battery tab welding device according to claim 8, characterized in that: The bar installation assembly includes a protrusion, which is embedded in the moving assembly. A screw is arranged on the protrusion, and one end of the screw is slidably matched with the moving assembly.

10. A welding device, characterized in that: The welding equipment includes the lithium battery tab welding device according to any one of claims 1-9.

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