A new energy power battery spot welding anti- indentation tool jig

Abstract

The utility model belongs to new energy power battery processing equipment technical field, concretely relates to a new energy power battery spot welding anti -indentation tool jig, including upper casing and lower casing, the upper casing and lower casing all are established the clamping hole, the clamping hole on the upper casing with the clamping hole on the lower casing is opposite setting, the lower casing equidistance is established with a plurality of installation cavities, the installation cavity all is equipped with the anti -indentation clamping device. The utility model through "cam + elastic compression spare + rubber block" realizes flexible clamping, avoids battery indentation, and the synchronous drive structure promotes batch processing efficiency, and the detachable design is convenient for maintenance, is applicable to the stable clamping of power battery spot welding process.

Description

Technical Field

[0001] This utility model belongs to the technical field of new energy power battery processing equipment, specifically relating to a tooling fixture for preventing indentation during spot welding of new energy power batteries. Background Technology

[0002] In the production process of new energy power batteries, spot welding is a crucial step in connecting the battery tabs to the casing, requiring the use of tooling fixtures for positioning and clamping. Existing tooling fixtures mostly employ rigid clamping structures, making it difficult to precisely control the clamping force, easily causing indentations on the battery casing, affecting the product's appearance and structural strength. Furthermore, during batch clamping, the synchronization between workstations is poor, requiring individual rotation of the lever for fixation, resulting in some batteries being loosely or excessively clamped, leading to unstable spot welding accuracy. Therefore, this utility model proposes a tooling fixture for preventing indentations during spot welding of new energy power batteries. Utility Model Content

[0003] To address the aforementioned shortcomings in the existing technology, this utility model provides a new energy power battery spot welding anti-indentation tooling fixture, including an upper shell and a lower shell. Both the upper shell and the lower shell are provided with clamping holes, and the clamping holes on the upper shell and the lower shell are directly opposite each other. The lower shell is provided with multiple mounting cavities at equal intervals, and each mounting cavity is provided with an anti-indentation clamping device.

[0004] The anti-indentation clamping device includes a rotating rod rotatably mounted inside the mounting cavity. Cams are equidistantly mounted on the rotating rod, and the cams are mounted directly opposite the clamping holes. The anti-indentation clamping device also includes a compression plate slidably mounted in the mounting cavity. A compression component is fixedly connected to the side wall of the compression plate at the position corresponding to each of the cams. The compression component includes two hollow cylinders that are slidably sleeved together and have a limit structure. A compression spring is installed between the two hollow cylinders. A rubber block is fixedly mounted at the other end of the compression component. The rubber block passes through the clamping hole of the lower housing for elastically clamping the battery.

[0005] Secondly, limit rods are fixedly installed at both ends of the extrusion plate. The limit rods are slidably connected to the slots opened on the inner wall of the mounting cavity to limit the extrusion plate. A return spring is sleeved on the outer wall of the limit rod. One end of the return spring is connected to the outer wall of the extrusion plate, and the other end is connected to the inner wall of the mounting cavity.

[0006] Furthermore, pulleys are fixedly mounted on the same end of each rotating rod, and the pulleys are connected by belt drive to achieve synchronous driving of multiple rotating rods.

[0007] A limiting plate is detachably installed between the pulley and the lower housing. The limiting plate is rotatably connected to the rotating rod and is used to limit the axial movement of the rotating rod.

[0008] Secondly, a U-shaped mounting plate is detachably installed on the outer wall of the lower housing opposite the pulley. A rotary cylinder is detachably installed on the U-shaped mounting plate. The output shaft of the rotary cylinder is coaxially and fixedly connected to one of the rotating rods, and the rotation angle of the output shaft is 90°.

[0009] Meanwhile, both ends of the upper and lower housings are provided with protrusions, and the upper and lower housings are detachably connected by fastening bolts passing through the protrusions.

[0010] Compared with the prior art, this utility model has the following advantages:

[0011] 1. This utility model uses an elastic clamping structure of "compression spring + rubber block" to avoid battery casing indentations caused by rigid contact; and uses a pulley and belt to cooperate with a rotary cylinder to achieve multi-station synchronous drive, thereby improving batch processing efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a spot welding anti-indentation tooling fixture for new energy power batteries according to this utility model;

[0013] Figure 2 This is a schematic diagram of the interior of the lower shell and the distribution of the clamping device in an embodiment of a spot welding anti-indentation tooling fixture for new energy power batteries according to this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of an embodiment of a spot welding anti-indentation tooling fixture for new energy power batteries according to this utility model;

[0015] Figure 4 This is a schematic diagram of the connection between the pulley and the belt in an embodiment of a spot welding anti-indentation tooling fixture for new energy power batteries according to this utility model;

[0016] Figure 5 This is an enlarged structural diagram of point A in an embodiment of the anti-indentation tooling fixture for spot welding of new energy power batteries according to this utility model;

[0017] Figure 6 This is an enlarged structural diagram of section B of an embodiment of the anti-indentation tooling fixture for spot welding of new energy power batteries according to this utility model.

[0018] The reference numerals in the accompanying drawings include:

[0019] In the diagram: 1. Upper housing; 2. Lower housing; 3. Clamping hole; 4. Mounting cavity; 5. Rotating rod; 6. Cam; 7. Extrusion plate; 8. Compression component; 9. Compression spring; 10. Rubber block; 11. Limiting rod; 12. Return spring; 13. Pulley; 14. Belt; 15. Limiting plate; 16. U-shaped mounting plate; 17. Rotary cylinder; 18. Protrusion. Detailed Implementation

[0020] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1:

[0025] like Figure 1-6 As shown, this utility model provides a technical solution: a tooling fixture for preventing indentation during spot welding of new energy power batteries, comprising an upper housing 1 and a lower housing 2.

[0026] Housing and clamping hole structure: The upper housing 1 and the lower housing 2 are detachably connected at both ends by protrusions 18 and fastening bolts. Both are provided with multiple clamping holes 3, and the clamping holes 3 of the upper and lower housings are aligned one to one to accommodate the battery.

[0027] Anti-indentation clamping device: Multiple mounting cavities 4 are equidistantly opened along the length direction inside the lower housing 2, and each mounting cavity 4 is equipped with an anti-indentation clamping device.

[0028] The rotating rod 5 is rotatably installed in the mounting cavity 4, and multiple cams 6 are fixedly mounted on the rod body at equal intervals, with each cam 6 directly facing the clamping hole 3 of the lower housing 2.

[0029] The extrusion plate 7 is slidably disposed in the mounting cavity 4, and the compression component 8 is fixedly connected to its side wall corresponding to the position of the cam 6.

[0030] The compression component 8 is formed by two hollow cylinders with limiting structures slidingly connected, and a compression spring 9 is installed inside. A rubber block 10 is fixed at its end, and the rubber block 10 is inserted into the clamping hole 3 of the lower housing 2.

[0031] Limiting and resetting structure: Limiting rods 11 are fixed at both ends of the extrusion plate 7. The limiting rods 11 slide with the slots in the inner wall of the mounting cavity 4, and a resetting spring 12 is sleeved on the outer wall of the limiting rods 11.

[0032] Synchronous drive structure: pulleys 13 are fixed at the same end of each rotating rod 5, and the pulleys 13 are driven by belts 14; a rotary cylinder 17 is installed on the outer wall of the lower housing 2 through a U-shaped mounting plate 16, and its output shaft is fixed coaxially with one of the rotating rods 5, with a rotation angle of 90°.

[0033] The working principle of this utility model is as follows: First, the power battery to be spot-welded is placed into the clamping hole 3 of the upper housing 1, so that it falls into the clamping hole 3 of the lower housing 2; then, the output shaft of the rotary cylinder 17 is controlled to rotate 90°, driving the corresponding rotating rod 5 to rotate. Through the transmission of the pulley 13 and the belt 14, all rotating rods 5 rotate synchronously; the cam 6 on the rotating rod 5 rotates with the rod, pushing the extrusion plate 7 to slide towards the clamping hole 3, the compression spring 9 in the compression component 8 is compressed, and the rubber block 10 elastically presses against the battery shell, completing the flexible clamping; further, after clamping, the battery is spot-welded; finally, after spot welding is completed, the output shaft of the rotary cylinder 17 is controlled to rotate 90° in the opposite direction, the cam 6 is reset, the extrusion plate 7 is retracted under the action of the reset spring 12, the rubber block 10 releases the battery, and the finished product can be taken out.

[0034] The above are merely embodiments of this utility model. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The content protected by this application does not involve improvements to the software and methods. Commonly known structures and characteristics in the solution are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field to which this utility model pertains prior to the application date or priority date, are able to access all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in conjunction with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A tooling fixture for preventing indentation during spot welding of new energy power batteries, characterized in that, It includes an upper shell (1) and a lower shell (2). Both the upper shell (1) and the lower shell (2) are provided with clamping holes (3). The clamping holes (3) on the upper shell (1) and the clamping holes (3) on the lower shell (2) are directly opposite each other. Multiple mounting cavities (4) are provided at equal intervals in the lower shell (2). Each mounting cavity (4) is provided with an anti-indentation clamping device. The anti-indentation clamping device includes a rotating rod (5) rotatably mounted inside the mounting cavity (4), and cams (6) are equidistantly mounted on the rotating rod (5). The cams (6) are mounted directly opposite the clamping hole (3). The anti-indentation clamping device also includes a compression plate (7) slidably mounted in the mounting cavity (4). A compression member (8) is fixedly connected to the side wall of the compression member (7) corresponding to the position of each cam (6). The compression member (8) includes two hollow cylinders that slide together and have a limiting structure. A compression spring (9) is installed between the two hollow cylinders. A rubber block (10) is fixedly mounted on the other end of the compression member (8). The rubber block (10) passes through the clamping hole (3) of the lower housing (2) for elastically clamping the battery.

2. The anti-indentation fixture for spot welding of new energy power batteries as described in claim 1, characterized in that: Limiting rods (11) are fixedly installed at both ends of the extrusion plate (7). The limiting rods (11) are slidably connected to the slots opened on the inner wall of the mounting cavity (4) to limit the extrusion plate (7). A return spring (12) is sleeved on the outer wall of the limiting rod (11). One end of the return spring (12) is connected to the outer wall of the extrusion plate (7), and the other end is connected to the inner wall of the mounting cavity (4).

3. The anti-indentation fixture for spot welding of new energy power batteries as described in claim 2, characterized in that: Each of the rotating rods (5) is fixedly equipped with a pulley (13) at the same end. The pulleys (13) are connected by a belt (14) to achieve synchronous driving of multiple rotating rods (5).

4. The anti-indentation fixture for spot welding of new energy power batteries as described in claim 3, characterized in that: A limiting plate (15) is detachably installed between the pulley (13) and the lower housing (2). The limiting plate (15) is rotatably connected to the rotating rod (5) to limit the axial movement of the rotating rod (5).

5. The anti-indentation fixture for spot welding of new energy power batteries as described in claim 4, characterized in that: A U-shaped mounting plate (16) is detachably mounted on the outer wall of the lower housing (2) opposite to the pulley (13). A rotary cylinder (17) is detachably mounted on the U-shaped mounting plate (16). The output shaft of the rotary cylinder (17) is coaxially fixedly connected to one of the rotating rods (5), and the rotation angle of the output shaft is 90°.

6. The anti-indentation fixture for spot welding of new energy power batteries as described in claim 5, characterized in that: Both ends of the upper housing (1) and the lower housing (2) are provided with protrusions (18), and the upper housing (1) and the lower housing (2) are detachably connected by fastening bolts passing through the protrusions (18).

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