Clamp for spot welding machining of lithium battery

Abstract

The utility model discloses a fixture for spot welding processing of a lithium battery, which belongs to the technical field of lithium battery processing, and comprises a containing box and a filling port arranged on one side of the containing box, and vertical slots extending into the filling port are oppositely arranged on the upper surface of the containing box. The clamp for spot welding machining of the lithium battery further comprises a blocking assembly and a partition assembly, wherein the blocking assembly is vertically inserted into the vertical inserting groove and used for blocking the filling opening, and the partition assembly is transversely inserted into the containing box. Through alternate and matched use of the containing box, the blocking assembly and the partition assembly, neat filling of the cylindrical lithium batteries can be rapidly completed, the cylindrical lithium batteries can be limited and fixed in the containing box so that the lithium batteries in the containing box can be fixed into a battery pack through spot welding nickel sheets, the spot welding efficiency of the lithium batteries can be improved, and the production cost can be reduced. And the operation is simple and quick, so that the filling amount and the filling regularity can be observed in real time when the lithium battery is quickly filled.

Description

Technical Field

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

[0002] With the development of social science and technology, the country pays more and more attention to environmental protection. The country is vigorously developing new energy, especially in the field of automobiles, vigorously supporting the development of new energy vehicles, so as to replace some fuel vehicles, reduce the emission of automobile exhaust, and play a role in protecting the environment. The core component of new energy vehicles is the battery pack, which is composed of a number of neatly arranged cylindrical lithium batteries. The nickel sheet is welded with a plurality of independent cylindrical lithium batteries by spot welding to realize connecting a plurality of lithium batteries in series into a battery pack, and then the plurality of battery packs are spot welded in series into a battery pack. The existing cylindrical lithium batteries will use a box-shaped holding fixture when welding, and a plurality of independent cylindrical lithium batteries will be placed in the box-shaped holding fixture to be neatly stacked, and then the nickel sheet will be placed on the neatly stacked lithium batteries and spot welding will be performed. However, when filling the cylindrical lithium batteries in the existing box-shaped holding fixture, either multiple batteries are placed at the same time, and then the positions of the lithium batteries are adjusted one by one until the holding fixture is neatly filled, or the lithium batteries are filled one by one as a whole. Both operation methods are relatively troublesome and have a great impact on the efficiency of spot welding. Utility Model Content

[0003] The purpose of the utility model is to provide a fixture for spot welding of lithium batteries, so as to solve the problem in the background technology that the operation of filling the cylindrical lithium batteries in the fixture is troublesome and has a great impact on the efficiency of spot welding.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a lithium battery spot welding processing fixture, comprising a container box and a filling port provided on one side of the container box, wherein the upper surface of the container box is relatively provided with a vertical slot extending into the filling port, and the lithium battery spot welding processing fixture further comprises:

[0006] A blocking component is vertically inserted into the vertical slot, and the blocking component is used to block the filling port.

[0007] A partition component is laterally plugged into the container box, and the partition component is used to divide the space in the container box into a plurality of strip spaces at equal intervals.

[0008] The partition assembly comprises:

[0009] A partition strip is slidably connected to a plurality of guide grooves arranged on one side of the container box, and one end of the partition strip passes through a through groove arranged on the container box.

[0010] A support plate is fixed to one end of the partition strip.

[0011] A top sealing plate is fixed on the upper surface of the support plate.

[0012] Furthermore, the partition assembly also includes a plurality of observation slots arranged on the upper surface of the top sealing plate, and the observation slots are located between two adjacent partition strips.

[0013] Furthermore, the partition assembly also includes a bent edge arranged on one of the length boundaries of the top sealing plate, and the bent edge is located on the lower surface of the top sealing plate.

[0014] Furthermore, the blocking assembly comprises:

[0015] A vertical baffle is inserted into the vertical slot.

[0016] A plurality of limit blocks are fixed to the lower surface of the vertical baffle, the limit blocks are plugged into the limit grooves arranged in the filling port, and a plurality of storage grooves are arranged on one side of the vertical baffle.

[0017] Furthermore, the storage groove matches the partition strip, and the storage groove corresponds to the guide groove.

[0018] Furthermore, the blocking assembly also includes a handle fixed to the upper surface of the vertical baffle, and the handle is located outside the filling port.

[0019] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0020] 1. The utility model can quickly complete the neat filling of cylindrical lithium batteries and limit the cylindrical lithium batteries in the container box through the alternating and coordinated use of the container box, the sealing component and the partition component, so as to fix the lithium batteries in the container box into a battery pack by spot welding the nickel sheet, thereby improving the efficiency of lithium battery spot welding and being simple and quick to operate;

[0021] 2. The utility model opens an observation slot on the top sealing plate and places the observation slot between two adjacent partition strips, so that when the lithium batteries are quickly filled, the filling amount and filling neatness can be observed in real time, so that when stacking errors occur during filling, the stacking misalignment can be accurately and quickly found and corrected after filling, thereby reducing the impact of operational errors on the overall welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is the front view of the utility model;

[0024] Figure 3 It is a partial right side half-section view of the utility model;

[0025] Figure 4 It is a three-dimensional schematic diagram of the sealing component in the utility model;

[0026] Figure 5 It is a three-dimensional schematic diagram of the partition assembly in the utility model.

[0027] In the figure: 1. container box; 2. filling port; 3. vertical slot; 4. blocking assembly; 41. vertical baffle; 42. limiting block; 43. limiting slot; 44. storage slot; 45. handle; 5. partition assembly; 51. support plate; 52. partition strip; 53. top sealing plate; 54. bending edge; 55. observation slot; 56. through slot; 57. guide slot. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0029] like Figures 1 to 5 As shown, a fixture for spot welding of lithium batteries comprises a container box 1 and a filling port 2 provided on one side of the container box 1, the filling port 2 is located on one of the wide and high surfaces of the container box 1, and a vertical slot 3 extending into the filling port 2 is relatively opened on the upper surface of the container box 1. The fixture for spot welding of lithium batteries also comprises:

[0030] The blocking component 4 is vertically inserted into the vertical slot 3 , and is used to block the filling port 2 .

[0031] The partition assembly 5 is laterally plugged into the container box 1 , and is used to divide the space in the container box 1 into a plurality of strip spaces at equal intervals.

[0032] Before filling the cylindrical lithium battery, the partition component 5 is first inserted horizontally from the side of the container box 1 opposite to the filling port 2, and the internal space of the container box 1 can be divided into multiple strip spaces along the length direction of the container box 1, and the width of each strip space matches the diameter of the cylindrical lithium battery. The distance from the side of the vertical slot 3 close to the partition component 5 to the side of the container box 1 away from the blocking component 4 is the length of the strip space, and the length of the strip space is an integer multiple of the diameter of the cylindrical lithium battery. After the partition component 5 is inserted into the container box 1, the container box 1 is erected, and the filling port 2 is facing upward, and then the cylindrical lithium batteries are put into the filling port one by one. Fill in and make the axial direction of the cylindrical lithium battery parallel to the vertical slot 3 of the container box 1, so that after the cylindrical lithium batteries are put into the strip space, they can be neatly stacked in the strip space under the action of gravity. In this process, the strip space plays a guiding and limiting role for the cylindrical lithium batteries until the container box 1 is full, and then insert the sealing component 4 into the vertical slot 3, and then place the container box 1 horizontally and pull out the partition component 5, and finally insert the partition component 5 vertically into one side of the long height surface of the container box 1, so that all the lithium batteries can be pushed together, and the freedom of the lithium batteries can be constrained, so as to facilitate the stable implementation of the subsequent spot welding operation.

[0033] The partition assembly 5 comprises:

[0034] The partition strip 52 is slidably connected to a plurality of guide grooves 57 provided on one side of the container box 1 , and one end of the partition strip 52 passes through a through groove 56 provided on the container box 1 .

[0035] A support plate 51 is fixed to one end of the partition strip 52 .

[0036] The top sealing plate 53 is fixed to the upper surface of the support plate 51, and the thickness of the top sealing plate 53 is equal to the sum of the thicknesses of all the partition strips 52, so that after the cylindrical lithium batteries are filled, by vertically inserting the top sealing plate 53 into one of the length sides of the container box 1, all the cylindrical lithium batteries in the container box 1 can be squeezed together, thereby constraining the freedom of all cylindrical lithium batteries and facilitating the stable implementation of subsequent spot welding operations.

[0037] Before loading the cylindrical lithium batteries into the container box 1, align each partition strip 52 with the through groove 56 one by one, and then insert it into the through groove 56 horizontally and then insert it into the guide groove 57 after passing through the through groove 56 until the support plate 51 is in contact with the outer wall of the container box 1. The top sealing plate 53 covers the opening at the top of the container box 1 to prevent the lithium batteries from falling out of the opening on the container box 1 when loading. Then, the container box 1 together with the partition assembly 5 is erected so that the support plate 51 is placed flat on a horizontal plane. When the lithium battery is filled, the partition strip 52 divides the container 1 into a plurality of identical strip spaces, and then the lithium batteries can be filled into the strip spaces one by one from the filling port 2. Before the lithium battery is filled, the positive end of the lithium battery is directed toward the top sealing plate 53, and the cylindrical lithium battery can be put into the strip space. Under the action of gravity, the cylindrical lithium battery is neatly stacked in the strip space, and the filling of the cylindrical lithium battery in the container 1 is quickly completed. Only the cylindrical lithium battery needs to be delivered to complete the filling and stacking at the same time, which is simple to operate and improves the filling efficiency.

[0038] In this embodiment, the partition assembly 5 also includes a plurality of observation grooves 55 provided on the upper surface of the top sealing plate 53, and the observation grooves 55 are located between two adjacent partition strips 52. This design facilitates real-time observation of the filling progress and filling status of the cylindrical lithium batteries when the cylindrical lithium batteries are filled, and timely observation of the occurrence of filling errors, and timely correction, thereby improving the stability of the cylindrical lithium battery filling operation.

[0039] In this embodiment, the partition assembly 5 also includes a bent edge 54 provided on one of the length boundaries of the top sealing plate 53. The bent edge 54 is located on the lower surface of the top sealing plate 53 so as to play a guiding role when the partition assembly 5 is plugged into the container box 1.

[0040] In this embodiment, the blocking component 4 includes:

[0041] A vertical baffle 41 is inserted into the vertical slot 3 .

[0042] A plurality of limit blocks 42 are fixed on the lower surface of the vertical baffle plate 41, and the limit blocks 42 are plugged into the limit grooves 43 provided in the filling port 2. A plurality of storage grooves 44 are provided on one side of the vertical baffle plate 41. After the cylindrical lithium batteries in the container box 1 are filled, the vertical baffle plate 41 is inserted into the vertical slot 3, so that the limit blocks 42 are inserted into the limit grooves 43, thereby increasing the lateral support strength of the vertical baffle plate 41 and achieving the blocking of the filling port 2. Then, the container box 1 is placed horizontally, and the partition assembly 5 is pulled out. Then, the boundary of the top sealing plate 53 opposite to the bent edge 54 is inserted into one of the length boundaries in the container box 1. All the parallel cylindrical lithium batteries in the container box 1 can be squeezed together, thereby playing a role in limiting and fixing the cylindrical lithium batteries, so as to improve the stability of subsequent spot welding operations.

[0043] In this embodiment, the storage groove 44 matches the partition strip 52, and the storage groove 44 corresponds to the guide groove 57. When the vertical baffle 41 is inserted, the freedom of the cylindrical lithium battery can be constrained in the length direction of the container box 1. Combined with the insertion of the top sealing plate 53, the freedom of the cylindrical lithium battery in the water surface can be constrained to avoid shaking during spot welding and affect the accuracy and effect of spot welding.

[0044] In this embodiment, the blocking assembly 4 further includes a handle 45 fixed to the upper surface of the vertical baffle 41 . The handle 45 is located outside the filling port 2 . The setting of the handle 45 is convenient for the user to hold and operate.

[0045] The above description is only the preferred embodiment of the utility model, and the parts not described in the utility model can be implemented by adopting or drawing on existing technologies. Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. The changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the utility model should also fall within the protection scope of the utility model.

Claims

1. A fixture for spot welding of lithium batteries, comprising a container box (1) and a filling port (2) arranged on one side of the container box (1), wherein the upper surface of the container box (1) is provided with a vertical slot (3) extending into the filling port (2), characterized in that: The lithium battery spot welding fixture also includes: A blocking component (4) vertically inserted into the vertical slot (3), the blocking component (4) being used to block the filling port (2); A partition assembly (5) laterally plugged into the container box (1), the partition assembly (5) being used to divide the space inside the container box (1) into a plurality of strip-shaped spaces at equal distances; The partition assembly (5) comprises: A partition strip (52) slidably connected to a plurality of guide grooves (57) provided on one side of the container box (1), one end of the partition strip (52) passing through a through groove (56) provided on the container box (1); A support plate (51) fixed to one end of the partition strip (52); A top sealing plate (53) is fixed to the upper surface of the support plate (51).

2. The fixture for spot welding of lithium batteries according to claim 1, characterized in that: The partition assembly (5) further comprises a plurality of observation slots (55) provided on the upper surface of the top sealing plate (53), and the observation slots (55) are located between two adjacent separation strips (52).

3. The fixture for spot welding of lithium batteries according to claim 2, characterized in that: The partition assembly (5) further comprises a bent edge (54) provided on one of the length boundaries of the top sealing plate (53), and the bent edge (54) is located on the lower surface of the top sealing plate (53).

4. The fixture for spot welding of lithium batteries according to claim 1, characterized in that: The blocking component (4) comprises: A vertical baffle (41) inserted into the vertical slot (3); A plurality of limit blocks (42) are fixed to the lower surface of the vertical baffle plate (41), the limit blocks (42) being plugged into limit grooves (43) provided in the filling port (2), and a plurality of storage grooves (44) are provided on one side of the vertical baffle plate (41).

5. The fixture for spot welding of lithium batteries according to claim 4, characterized in that: The receiving groove (44) matches the dividing strip plate (52), and the receiving groove (44) corresponds to the guide groove (57).

6. The fixture for spot welding of lithium batteries according to claim 5, characterized in that: The blocking assembly (4) further comprises a handle (45) fixed to the upper surface of the vertical baffle (41), and the handle (45) is located outside the filling port (2).

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