Cylinder battery welding seam R angle printing angle adjusting tool

Abstract

The utility model discloses a kind of cylindrical electric core weld R angle printing angle adjustment tool, it is related to electric core production technical field, and it includes: fixed bottom plate, tool fixing plate, angle adjustment component, mounting bracket, fixed bottom plate is horizontally arranged;One end of tool fixing plate is rotatably installed in fixed bottom plate;Angle adjustment component is connected to fixed bottom plate, and angle adjustment component is used to adjust the included angle between tool fixing plate and fixed bottom plate;Mounting bracket is connected to tool fixing plate, and mounting bracket is rotatably installed with installation portion, installation portion is formed with the installation site for fixing cylindrical electric core, and the axis of cylindrical electric core fixed in installation site coincides with the rotation axis of installation portion, and driving element connected with installation portion transmission is equipped on mounting bracket, and printing head for spraying weld R angle of cylindrical electric core end surface is arranged above installation site.The utility model can ensure that paint can evenly cover entire weld R angle.

Description

Technical Field

[0001] This utility model relates to the field of battery cell production technology, and in particular to a tooling for adjusting the R-angle printing angle of the weld seam of a cylindrical battery cell. Background Technology

[0002] Cylindrical cells are lithium iron phosphate batteries with steel casings. Their typical structure includes core components such as the positive electrode cap, safety valve, and wound electrode assembly. The steel casing is usually connected by welding at the periphery and ends. Because the welds are located at the intersection of the sides and ends of the cylindrical cell, the UV insulating film sprayed on the welds is often insufficient in thickness and uneven, resulting in low pass rates in withstand voltage and salt spray tests. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a tooling for adjusting the printing angle of the radius (R) of the weld seam in cylindrical battery cells, which can ensure that the coating can uniformly cover the entire radius (R) of the weld seam.

[0004] A tooling for adjusting the printing angle of the weld radius (R-angle) of a cylindrical battery cell according to a first aspect embodiment of the present invention includes: a fixed base plate, a tooling fixing plate, an angle adjustment component, and a mounting bracket. The fixed base plate is horizontally positioned; one end of the tooling fixing plate is rotatably mounted on the fixed base plate; the angle adjustment component is connected to the fixed base plate and is used to adjust the included angle between the tooling fixing plate and the fixed base plate; the mounting bracket is connected to the tooling fixing plate, and a mounting part is rotatably mounted on the mounting bracket. The mounting part forms a mounting position for fixing the cylindrical battery cell, and the axis of the cylindrical battery cell fixed at the mounting position coincides with the rotation axis of the mounting part. The mounting bracket is provided with a driving component that is pulsatorically connected to the mounting part, and a printing head for spraying the weld radius (R-angle) of the cylindrical battery cell end face is disposed above the mounting position.

[0005] A printing angle adjustment fixture for the R-corner of a cylindrical battery cell weld, according to an embodiment of this utility model, has at least the following beneficial effects: When the cylindrical battery cell rotates, the print head moves above the cylindrical battery cell and aligns with the rounded corner of the end face of the cylindrical battery cell for spraying. The tilt angle of the fixture fixing plate is changed by the angle adjustment component, thereby changing the tilt angle of the cylindrical battery cell. The rotation angle of the cylindrical battery cell can be easily adjusted according to the actual printing effect, so that the print head always maintains the optimal distance and spray angle with the R-corner curved surface, ensuring that the paint can evenly cover the entire weld R-corner and achieve the best printing state.

[0006] According to some embodiments of the present invention, the angle adjustment assembly includes an angle plate and a locking member. The angle plate is vertically disposed on the fixed base plate and is perpendicular to the rotation axis of the tooling fixed plate. A first arc-shaped hole is provided on the angle plate, the center of which coincides with the rotation axis of the tooling fixed plate. The locking member passes through the first arc-shaped hole and is connected to the tooling fixed plate. The locking member is used to fix the tooling fixed plate and the fixed base plate.

[0007] According to some embodiments of the present invention, two rotating shaft blocks are vertically connected to both sides of the fixed base plate, and a rotating shaft is inserted through the rotating shaft block and the tooling fixing plate.

[0008] According to some embodiments of the present invention, the mounting bracket is connected to a shock-absorbing part, the shock-absorbing part is provided with a bearing assembly, the mounting part is connected to the driving component via a drive shaft, and the drive shaft passes through the bearing assembly.

[0009] According to some embodiments of the present invention, the mounting bracket is connected to the shock-absorbing part through multiple support columns, the driving component is connected to the driving shaft through a coupling, and the support columns form an operating space to facilitate the installation of the coupling.

[0010] According to some embodiments of this utility model, the shock-absorbing part is connected to a light source fixing plate, and the light source fixing plate is provided with a pre-fixed light source, which is used to illuminate the weld R angle of the cylindrical cell end face fixed to the mounting position.

[0011] According to some embodiments of this utility model, the light source fixing plate is positioned adjustablely on the shock-absorbing part.

[0012] According to some embodiments of the present invention, the light source fixing plate is provided with a light-shielding part, which is located between the pre-fixed light source and the print head.

[0013] According to some embodiments of this utility model, the light-shielding part includes an adapter plate and a light-blocking plate, the adapter plate and the light-blocking plate are perpendicular to each other, the light-blocking plate extends between the pre-fixed light source and the print head, the adapter plate is provided with a second arc-shaped hole, the adapter plate is provided with a light source hole, the pre-fixed light source passes through the light source hole, the center of the second arc-shaped hole coincides with the axis of the light source hole, a clamping screw passes through the second arc-shaped hole, and the clamping screw is threaded to the light source fixing plate.

[0014] According to some embodiments of this utility model, the mounting part is a four-jaw chuck.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the installation structure of one embodiment of the present utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a front view of one embodiment of the present invention; Figure 4 This is a cross-sectional schematic diagram of the shock-absorbing part according to an embodiment of the present invention.

[0017] Icon labels: Fixed base plate 100, rotating shaft block 110; Tooling fixing plate 200; Angle adjustment component 300, angle plate 310, first arc-shaped hole 311, locking component 320; Mounting bracket 400, support column 410; Mounting part 500, drive shaft 510; Cylindrical cell 600; Drive component 700, coupling 710; Printhead 800; Shock-absorbing part 900, bearing assembly 910, light source fixing plate 920, pre-fixed light source 930, light shielding part 940, adapter plate 941, light blocking plate 942, second arc-shaped hole 943, light source hole 944, clamping screw 945. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are 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, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figures 1 to 4As shown, an embodiment of this utility model discloses a tooling for adjusting the R-angle printing angle of a cylindrical battery cell weld seam, comprising: a fixed base plate 100, a tooling fixing plate 200, an angle adjustment component 300, and a mounting bracket 400. The fixed base plate 100 is horizontally positioned; the tooling fixing plate 200 and the fixed base plate 100 are typically made of aluminum alloy or steel plate, with the tooling fixing plate 200 inclined and one end rotatably mounted on the fixed base plate 100; the rotation axis of the tooling fixing plate 200 is horizontally positioned, and the angle adjustment component 300 is connected to the fixed base plate 100, used to adjust the included angle between the tooling fixing plate 200 and the fixed base plate 100; the mounting bracket 400 provides a mounting support surface and mounting space for the drive component 700. The mounting bracket 400 is connected to the tooling fixing plate 200. A mounting part 500 is rotatably mounted on the mounting bracket 400. The cylindrical battery cell 600 is detachably connected to the mounting part 500 for easy assembly and disassembly. The mounting part 500 has a mounting position for fixing the cylindrical battery cell 600, and the axis of the cylindrical battery cell 600 fixed in the mounting position coincides with the rotation axis of the mounting part 500. The mounting bracket 400 is equipped with a drive component 700 that is drively connected to the mounting part 500. The drive component 700 is a servo motor, which has the advantage of stable and adjustable rotation speed, avoiding uneven coating thickness caused by speed fluctuations. The servo motor speed is adjusted according to the actual printing effect. During the manufacturing of the cylindrical battery cell 600, the weld radius (R-angle) between the end face and side face of the cylindrical battery cell 600 (i.e., the rounded corner of the end face of the cylindrical battery cell 600) makes it difficult to evenly print insulating material. A printhead 800 is positioned above the mounting position for spraying UV coating onto the rounded corners of the cylindrical battery cell 600's end face. The printhead 800 is existing technology and will not be described in detail. The printhead 800 can spray UV coating. When the cylindrical battery cell 600 rotates, the printhead 800 moves above it and aligns with the rounded corners of the end face for spraying. The tilt angle of the tooling fixing plate 200 is changed by the angle adjustment component 300, thereby changing the tilt angle of the cylindrical battery cell 600. The rotation angle of the cylindrical battery cell 600 can be easily adjusted according to the actual printing effect, ensuring that the printhead 800 always maintains the optimal distance and spray angle with the rounded surface, ensuring that the coating evenly covers the entire arc surface to achieve optimal printing results.

[0023] Reference Figures 1 to 3As shown, the angle adjustment assembly 300 includes an angle plate 310 and a locking element 320. The locking element 320 is a hexagonal head screw or a hand-tightening screw. Using a hexagonal head screw or a hand-tightening screw as the locking element 320 allows the operator to operate it without the need for complex tools. The angle plate 310 is vertically mounted on the fixed base plate 100 and is connected to the fixed base plate 100 by bolts or welding. Two angle plates 310 are symmetrically arranged around the fixed base plate 100, and the two angle plates 310 are parallel to each other. The angle plate 310 is perpendicular to the rotation axis of the tooling fixing plate 200. The angle plate 310 has a first arc-shaped hole 311, the center of which coincides with the rotation axis of the tooling fixing plate 200, ensuring the accuracy of angle adjustment. The locking element 320 passes through the first arc-shaped hole 311 and is threadedly connected to the tooling fixing plate 200. The structure is very simple, and the manufacturing and assembly costs are low. Locking element 320 is used to fix the fixture fixing plate 200 and the fixing base plate 100. The bolt head of locking element 320 presses against angle plate 310, fixing angle plate 310 and fixture fixing plate 200 through friction. Loosening locking element 320 allows free adjustment of the tilt angle of fixture fixing plate 200, achieving stepless adjustment and precise positioning to any angle. Tightening locking element 320 then fixes angle plate 310 and fixture fixing plate 200. The adjustment speed is fast, allowing for convenient and rapid optimization and adjustment of the angle based on printing results.

[0024] Reference Figures 1 to 3 As shown, it can be understood that two rotating shaft blocks 110 are connected to each side of the fixed base plate 100. The rotating shaft blocks 110 are vertically arranged and bolted to the fixed base plate 100. A rotating shaft passes through the rotating shaft block 110 and the tooling fixing plate 200. The assembly process of the rotating shaft blocks 110 is simple, and it is easy to ensure the coaxiality of the rotating shafts in the two rotating shaft blocks 110. The tooling fixing plate 200 rotates around the rotating shaft. The rotation function is achieved through independent rotating shaft blocks 110 and rotating shafts, which simplifies the processing difficulty compared to machining shaft holes in the plate and facilitates maintenance and replacement.

[0025] Reference Figures 1 to 4 As shown, the mounting bracket 400 is connected to a shock-absorbing part 900, which houses a bearing assembly 910. The shock-absorbing part 900 serves as a bearing housing for mounting the bearing. The bearing assembly 910 includes at least two deep groove ball bearings. Deep groove ball bearings can withstand combined axial and radial loads and are suitable for bearing the radial and axial forces generated by the cylindrical cell 600 operating at an inclined angle. The mounting part 500 is connected to the drive component 700 via a drive shaft 510, which passes through the bearing assembly 910. It is foreseeable that a retaining ring or a positioning sleeve can be provided on the drive shaft 510 to axially fix the bearing assembly 910.

[0026] Reference Figures 1 to 4 As shown, the mounting bracket 400 is connected to the shock absorber 900 via multiple support columns 410, and the drive component 700 is connected to the drive shaft 510 via a coupling 710. An open gap is left between the drive component 700 and the drive shaft 510 via the support columns 410. The support columns 410 form an operating space to facilitate the installation of the coupling 710. The coupling 710 can be a diaphragm coupling 710 or a coil spring coupling 710. When it is necessary to replace the coupling 710 and the drive component 700, technicians can directly reach into this operating space to remove the fastening screws on the coupling 710.

[0027] Reference Figures 1 to 4 As shown, the shock-absorbing part 900 is connected to a light source fixing plate 920, and a pre-cured light source 930 is bolted to the light source fixing plate 920. The pre-cured light source 930 is used to irradiate the rounded corners of the cylindrical battery cell 600 fixed in the mounting position. The printhead 800 sprays UV coating onto the upper part of the cylindrical battery cell 600, so the pre-cured light source 930 generates ultraviolet light to irradiate the cylindrical battery cell 600 to cure the UV coating. The UV coating is in a liquid or semi-liquid state after spraying, and it is very easy to flow or deform under the action of gravity. Integrating the spraying and pre-curing processes into the same equipment maintains the uniformity and shape of the coating on the rounded corners of the cylindrical battery cell 600 end face. This improves product consistency and yield.

[0028] Reference Figures 1 to 4 As shown, the adjustable position of the light source fixing plate 920 is connected to the vibration damping part 900. The light source fixing plate 920 is elongated and has two parallel strip-shaped holes extending along its length. A light source adjusting bolt passes through these holes, with its tail threaded into the vibration damping part 900 and its head abutting against the light source fixing plate 920. Different models of cylindrical battery cells 600 may have different diameters, heights, and radius (R-angle) dimensions. During product changeovers, operators do not need to replace the entire tooling; they only need to loosen the light source adjusting bolt, move and adjust the light source fixing plate 920 to ensure the light from the pre-fixed light source 930 illuminates the cylindrical battery cell 600 at the optimal position, and then tighten the light source adjusting bolt. This improves the tooling's versatility and reduces changeover time and hardware costs.

[0029] Reference Figures 1 to 4As shown, it can be understood that the light source fixing plate 920 is provided with a light-shielding part 940, which is located between the pre-cured light source 930 and the print head 800. Some of the ultraviolet rays generated by the pre-cured light source 930 will directly irradiate or be reflected onto the print head 800. If the UV coating cures near the nozzle of the print head 800, it will cause nozzle clogging. The light-shielding part 940 physically blocks the propagation path of ultraviolet light, preventing nozzle clogging of the print head 800, ensuring that the print head 800 always operates stably and controllably, and guaranteeing improved consistency in each coating operation.

[0030] Reference Figures 1 to 4 As shown, the light-shielding part 940 includes an adapter plate 941 and a light-blocking plate 942, which are perpendicular to each other. The light-blocking plate 942 extends between the pre-cured light source 930 and the print head 800. The adapter plate 941 has a second arc-shaped hole 943 and a light source hole 944, through which the pre-cured light source 930 passes. The center of the second arc-shaped hole 943 coincides with the axis of the light source hole 944. A clamping screw 945 passes through the second arc-shaped hole 943 and is threaded to the light source fixing plate 920. After loosening the clamping screw 945, the entire light-shielding part 940 can be rotated and adjusted around the axis of the ultraviolet light source. The operator can fine-tune the angle of the light-blocking plate 942 so that the print head 800 is located in the shadow produced by the light-blocking plate 942. At the same time, it does not affect the effective irradiation of the cylindrical battery cell 600 by the pre-cured light source 930. When replacing different models of cylindrical battery cells 600 or adjusting the tooling tilt angle, the relative position between the print head 800 and the pre-fixed light source 930 may need to be changed. After the operator loosens the clamping screw 945, they can finely adjust the angle of the light-blocking plate 942 and then tighten the clamping screw 945 to complete the process debugging for production changeover.

[0031] Reference Figures 1 to 4 As shown, it can be understood that the mounting part 500 is a four-jaw chuck. The specific structure of the four-jaw chuck is existing technology and will not be described in detail. The four-jaw chuck can automatically complete the positioning when fixing the cylindrical battery cell 600, so that the axis of the cylindrical battery cell 600 coincides with the rotation axis of the mounting part 500, ensuring the consistency between products.

[0032] Operating Procedure: Insert the cylindrical battery cell 600 into the center mounting position of the mounting part 500. The cylindrical battery cell 600 is clamped by the mounting part 500, and its rotation axis coincides with the rotation axis of the mounting part 500. According to the process requirements, loosen the locking piece 320 on the angle plate 310, and adjust the tooling fixing plate 200 around the rotation axis to the required tilt angle so that the R-angle curved surface of the cylindrical battery cell 600 is at the optimal spraying angle. After adjustment, retighten the locking piece 320 to fix the angle. Then loosen the clamping screw 945, so that the light blocking plate 942 rotates along the second arc-shaped hole 943 with its light source hole 944 axis as the center, blocking the ultraviolet light from irradiating the print head 800. After adjustment, tighten the clamping screw 945. After completing the above preparations, the drive component 700 drives the drive shaft 510 and the cylindrical battery cell 600 to rotate at a uniform and stable speed through the coupling 710. Subsequently, the print head 800 moves above the battery cell and aligns with the R-angle weld to spray UV coating. Simultaneously, the pre-curing light source 930 generates ultraviolet light to pre-cur the freshly sprayed coating, fixing its shape and preventing the UV coating from flowing. After spraying and curing are completed, rotation stops, the four-jaw chuck is released, and the processed battery cell is removed, thus completing one work cycle.

[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A tooling for adjusting the printing angle of the R-angle of a cylindrical battery cell weld seam, characterized in that, include: A fixed base plate (100) is provided, wherein the fixed base plate (100) is horizontally positioned. Tooling fixing plate (200), one end of which is rotatably mounted on the fixing base plate (100); An angle adjustment component (300) is connected to the fixed base plate (100), and the angle adjustment component (300) is used to adjust the included angle between the tooling fixing plate (200) and the fixed base plate (100); A mounting bracket (400) is connected to the tooling fixing plate (200). A mounting part (500) is rotatably mounted on the mounting bracket (400). The mounting part (500) forms a mounting position for fixing a cylindrical battery cell (600). The axis of the cylindrical battery cell (600) fixed at the mounting position coincides with the rotation axis of the mounting part (500). A driving member (700) is provided on the mounting bracket (400) and is connected to the mounting part (500). A print head (800) is provided above the mounting position for spraying the weld R-angle of the end face of the cylindrical battery cell (600).

2. The tooling for adjusting the R-angle printing angle of the cylindrical battery cell weld seam according to claim 1, characterized in that: The angle adjustment assembly (300) includes an angle plate (310) and a locking member (320). The angle plate (310) is vertically disposed on the fixed base plate (100) and is perpendicular to the rotation axis of the tooling fixing plate (200). The angle plate (310) is provided with a first arc-shaped hole (311), the center of which coincides with the rotation axis of the tooling fixing plate (200). The locking member (320) passes through the first arc-shaped hole (311) and is connected to the tooling fixing plate (200). The locking member (320) is used to fix the tooling fixing plate (200) and the fixed base plate (100).

3. The tooling for adjusting the printing angle of the R-angle of the cylindrical battery cell weld seam according to claim 1, characterized in that: Two rotating shaft blocks (110) are vertically connected to both sides of the fixed base plate (100). A rotating shaft is inserted through the rotating shaft block (110) and the tooling fixing plate (200).

4. The tooling for adjusting the printing angle of the R-angle of the cylindrical battery cell weld seam according to claim 3, characterized in that: The mounting bracket (400) is connected to a shock-absorbing part (900), and a bearing assembly (910) is provided inside the shock-absorbing part (900). The mounting part (500) is connected to the driving component (700) via a drive shaft (510), and the drive shaft (510) passes through the bearing assembly (910).

5. The tooling for adjusting the printing angle of the R-angle of the cylindrical battery cell weld seam according to claim 4, characterized in that: The mounting bracket (400) is connected to the shock absorber (900) via multiple support columns (410), and the drive component (700) is connected to the drive shaft (510) via a coupling (710). The support columns (410) form an operating space to facilitate the installation of the coupling (710).

6. The tooling for adjusting the printing angle of the R-angle of the cylindrical battery cell weld seam according to claim 4, characterized in that: The shock-absorbing part (900) is connected to a light source fixing plate (920), and a pre-fixed light source (930) is provided on the light source fixing plate (920). The pre-fixed light source (930) is used to illuminate the weld R angle of the end face of the cylindrical cell (600) fixed at the mounting position.

7. The tooling for adjusting the R-angle printing angle of the cylindrical battery cell weld seam according to claim 6, characterized in that: The light source fixing plate (920) is located in the shock absorption part (900) with an adjustable position.

8. The tooling for adjusting the printing angle of the R-angle of the cylindrical battery cell weld seam according to claim 7, characterized in that: The light source fixing plate (920) is provided with a light-shielding part (940), which is located between the pre-fixed light source (930) and the print head (800).

9. The tooling for adjusting the printing angle of the R-angle of the cylindrical battery cell weld seam according to claim 8, characterized in that: The light-shielding part (940) includes a connecting plate (941) and a light-blocking plate (942). The connecting plate (941) and the light-blocking plate (942) are perpendicular to each other. The light-blocking plate (942) extends between the pre-fixed light source (930) and the print head (800). The connecting plate (941) is provided with a second arc-shaped hole (943) and a light source hole (944). The pre-fixed light source (930) passes through the light source hole (944). The center of the second arc-shaped hole (943) coincides with the axis of the light source hole (944). A clamping screw (945) is inserted in the second arc-shaped hole (943). The clamping screw (945) is threaded to the light source fixing plate (920).

10. The tooling for adjusting the printing angle of the R-angle of the cylindrical battery cell weld seam according to claim 1, characterized in that: The mounting part (500) is a four-jaw chuck.

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