Shell positioning device

Abstract

The utility model discloses a shell positioning device which is used for positioning a shell of a battery, the shell comprises a mounting shell and an end cover arranged at one end of the mounting shell, and the shell positioning device comprises a base frame, the first positioning mechanism is used for positioning the mounting shell; the second positioning mechanism and the first positioning mechanism are oppositely arranged in the X direction, and the second positioning mechanism is used for positioning the end cover and can enable the end cover to abut against one end of the mounting shell; the driving mechanism is installed on the base frame and connected to the first positioning mechanism and the second positioning mechanism so as to drive the first positioning mechanism and the second positioning mechanism to rotate synchronously. According to the shell positioning device, the first positioning mechanism and the second positioning mechanism are synchronously driven to rotate through the driving mechanism, namely the mounting shell and the end cover can be driven to rotate synchronously, and the quality problem of a final welding product caused by different rotating speeds of the mounting shell and the end cover is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a housing positioning device. Background Art

[0002] A battery includes a housing, an end cap, and a wound core disposed inside the housing. During battery production, the wound core is placed inside the housing, the end cap is covered on the housing, and then welded to the housing to seal the wound core inside the housing.

[0003] When welding the housing and the end cap, in the prior art, the housing is usually clamped by a jaw, and a positioning block is used to position the end cap. Since 360° welding is required, the housing is driven to rotate by a driving mechanism, and the end cap follows the rotation passively. Since the end cap has no power mechanism, it will cause a gap shift between the end cap and the housing, resulting in poor welding. Summary of the Utility Model

[0004] To solve at least one of the problems existing in the above prior art, according to one aspect of the present utility model, a housing positioning device is provided for positioning the housing of a battery. The housing includes a mounting shell and an end cap disposed at one end of the mounting shell. The housing positioning device includes: a base frame; a first positioning mechanism for positioning the mounting shell; a second positioning mechanism, which is disposed opposite to the first positioning mechanism in the X direction, for positioning the end cap and capable of making the end cap abut against one end of the mounting shell; and a driving mechanism, which is mounted on the base frame and is respectively connected to the first positioning mechanism and the second positioning mechanism to be capable of driving the first positioning mechanism and the second positioning mechanism to rotate synchronously.

[0005] In some embodiments, the first positioning mechanism is a clamping mechanism capable of clamping and releasing the mounting shell.

[0006] In some embodiments, the clamping mechanism includes a jaw cylinder and a pair of jaws disposed on the jaw cylinder. The pair of jaws are used for clamping and releasing the mounting shell.

[0007] In some embodiments, the clamping mechanism further includes an adjusting block, which is connected to the jaw cylinder and is disposed opposite to the second positioning mechanism for abutting against the other end of the mounting shell.

[0008] In some embodiments, the adjusting block is detachably connected to the jaw cylinder.

[0009] In some embodiments, the jaw cylinder is provided with a plurality of mounting holes arranged in the X direction, and the adjusting block is provided with a waist-shaped hole. The length direction of the waist-shaped hole is parallel to the X direction and can communicate with each of the mounting holes.

[0010] In some embodiments, the jaw is provided with a profiling groove for placing the mounting shell.

[0011] In some embodiments, the second positioning mechanism is a telescopic mechanism which is slidably arranged relative to the base frame and is used to abut against the end face of the end cover.

[0012] In some embodiments, the telescopic mechanism includes a telescopic shaft, an elastic member and a collar. The telescopic shaft is slidably connected to the driving mechanism. The collar is sleeved and slidably arranged on the telescopic shaft. The elastic member abuts between the base frame and the collar.

[0013] In some embodiments, the telescopic mechanism further includes an abutting block which is detachably mounted on the telescopic shaft and is used to abut against the end cover.

[0014] In some embodiments, the telescopic shaft passes through the collar, and a support step is formed on the telescopic shaft for mounting the abutting block.

[0015] In summary, the housing positioning device provided by the present utility model has the following technical effects:

[0016] The driving mechanism is mounted through the base frame, the mounting shell is positioned through the first positioning mechanism, and the end cover is positioned through the second positioning mechanism. When welding the mounting shell and the end cover, a driving mechanism synchronously drives and rotates the first positioning mechanism and the second positioning mechanism, which can drive the mounting shell and the end cover to rotate synchronously, avoiding quality problems of the final welded product caused by the deviation of their respective rotations when the mounting shell rotates while the end cover has no power-driven rotation. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the housing positioning device according to an embodiment of the present utility model;

[0018] Figure 2 is Figure 1 a schematic structural diagram of the first positioning mechanism and the second positioning mechanism in

[0019] Figure 3 is Figure 2 a schematic structural diagram of the first positioning mechanism in

[0020] Figure 4 is a schematic structural diagram of the housing according to an embodiment of the present utility model.

[0021] Attached drawings: 100 - housing positioning device, 10 - base frame, 11 - bottom plate, 12 - mounting plate, 13 - support column, 14 - fixed table, 20 - first positioning mechanism, 21 - jaw cylinder, 211 - mounting hole, 22 - jaw, 221 - profiling groove, 23 - adjusting block, 231 - connecting part, 232 - abutting part, 233 - kidney-shaped hole, 30 - second positioning mechanism, 31 - telescopic shaft, 311 - support step, 32 - elastic part, 33 - collar, 34 - abutting block, 40 - driving mechanism, 41 - driving motor, 42 - first pulley set, 43 - second pulley set, 44 - third pulley set, 45 - transmission shaft, 46 - linear bearing, 200 - housing, 210 - mounting housing, 220 - end cover. Detailed implementation manners

[0022] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the attached drawings in the embodiments of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

[0025] The present invention will be further described in detail below in conjunction with the attached drawings.

[0026] Please refer to Figures 1 to 4 , which is the housing positioning device 100 provided by the embodiment of the present invention, and is used to position the housing 200 of the battery. The structure of the housing 200 is referred to Figure 4 , the housing 200 includes a mounting housing 210 and an end cover 220 provided at one end of the mounting housing 210. The housing positioning device 100 includes a base frame 10, a first positioning mechanism 20, a second positioning mechanism 30, and a driving mechanism 40.

[0027] Among them, please refer to Figure 1, the base frame 10 serves as an installation base; the first positioning mechanism 20 is used to position the installation shell 210; the second positioning mechanism 30 and the first positioning mechanism 20 are oppositely arranged in the X direction and are used to position the end cover 220 so that the end cover 220 abuts against one end of the installation shell 210; the driving mechanism 40 is installed on the base frame 10 and is respectively connected to the first positioning mechanism 20 and the second positioning mechanism 30 to drive the first positioning mechanism 20 and the second positioning mechanism 30 to rotate synchronously.

[0028] For the above-mentioned housing positioning device 100, the driving mechanism 40 is installed through the base frame 10, the installation shell 210 is positioned through the first positioning mechanism 20, and the end cover 220 is positioned through the second positioning mechanism 30. When welding the installation shell 210 and the end cover 220, the first positioning mechanism 20 and the second positioning mechanism 30 are synchronously driven to rotate through a driving mechanism 40, that is, the installation shell 210 and the end cover 220 can be driven to rotate synchronously, avoiding the quality problem of the final welded product caused by the deviation of the respective rotations when the installation shell 210 rotates while the end cover 220 is not driven by power to rotate.

[0029] Please refer to Figure 1 , which is a schematic structural diagram of the base frame 10 of the embodiment of the present invention, including a bottom plate 11, a mounting plate 12, a plurality of support columns 13 and a pair of fixed platforms 14. The bottom plate 11 is arranged parallel to the mounting plate 12. A plurality of support columns 13 are separately connected between the bottom plate 11 and the mounting plate 12. A pair of fixed platforms 14 are separately installed on the mounting plate 12 to be able to install the first positioning mechanism 20 and the second positioning mechanism 30 respectively.

[0030] Among them, the driving mechanism 40 of this embodiment includes a driving motor 41, a first pulley group 42, a second pulley group 43, a third pulley group 44, a transmission shaft 45 and a plurality of linear bearings 46. The second positioning mechanism 30 is slidably arranged relative to the linear bearings 46. The linear bearings 46 are respectively installed on the first pulley group 42, the second pulley group 43 and the third pulley group 44, and two of them are respectively installed on the two fixed platforms 14.

[0031] Among them, the first pulley set 42 is connected to the driving motor 41 and includes two first pulleys; the second pulley set 43 is respectively connected to the first pulley set 42 and the first positioning mechanism 20 and includes two second pulleys; the transmission shaft 45 is connected between the second pulley set 43 and the third pulley set 44, and the third pulley set 44 is connected to the second positioning mechanism 30 and includes two third pulleys; thus, the driving force from the driving motor 41 is transmitted to the first pulley set 42, the first pulley set 42 drives the second pulley set 43 to rotate, the rotation of the second pulley set 43 drives the first positioning mechanism 20 to rotate, and at the same time drives the transmission shaft 45 to rotate, and the rotation of the transmission shaft 45 drives the third pulley set 44 to rotate, thereby synchronously driving the second positioning mechanism 30 connected to and installed on the first pulley set 42, the second pulley set 43 and the third pulley set 44 to rotate, thereby realizing the synchronous rotation of the first positioning mechanism 20 and the second positioning mechanism 30, and thus realizing the synchronous rotation of the mounting shell 210 and the end cover 220.

[0032] Among them, the first positioning mechanism 20 of this embodiment is installed on one mounting table, the second positioning mechanism 30 is installed on another mounting table, and the transmission shaft 45 and the driving motor 41 are arranged between the bottom plate 11 and the mounting plate 12, so as to realize the structural compactness of the entire housing positioning device 100.

[0033] Please refer to Figure 2 and Figure 3 , in an embodiment of the present invention, the first positioning mechanism 20 is a clamping mechanism, which can clamp and release the mounting shell 210, that is, in this embodiment, the mounting shell 210 is positioned and released in a clamping and releasing manner.

[0034] Specifically, the clamping mechanism includes a clamping jaw cylinder 21 and a pair of clamping jaws 22 arranged on the clamping jaw cylinder 21. The pair of clamping jaws 22 are used to clamp and release the mounting shell 210. Thus, driven by the clamping jaw cylinder 21, the two clamping jaws 22 move in opposite directions and separate from each other so as to be able to take out the mounting shell 210, or when the two clamping jaws 22 move towards each other, they can clamp the mounting shell 210.

[0035] Among them, on one side where the two clamping jaws 22 face each other, there are profiling grooves 221. The two profiling grooves 221 are used to place the mounting shell 210 and are adapted to the shape of the mounting shell 210. Thus, through the setting of the profiling grooves 221, the mounting shell 210 can be positioned and placed, so as to limit the mounting shell 210 by the two clamping jaws 22; through the setting of the profiling grooves 221, it is avoided that the mounting shell 210 is deformed when being clamped.

[0036] It should be noted that, in order to avoid clamping deformation of the mounting shell 210, when the mounting shell 210 is placed in the profiling groove 221 and the two clamping jaws 22 approach each other, the mounting shell 210 and the groove walls of the two profiling grooves 221 are in a clearance fit manner to avoid pressing deformation of the mounting shell 210.

[0037] Among them, the material of the clamping jaw 22 in this embodiment is polyetheretherketone, which can have a certain softness to avoid scratching the mounting shell 210 when contacting the mounting shell 210 in a hard-on-hard manner between metals.

[0038] Furthermore, please refer to the figure. After the clamping jaw 22 clamps the mounting shell 210, positioning of both sides of the mounting shell 210 in the X direction is achieved, that is, positioning in two directions in the Y direction and the Z direction is achieved. Since the mounting shell 210 and the clamping jaw 22 are in a clearance fit, in order to achieve positioning of both sides of the mounting shell 210 in the X direction, the clamping mechanism further includes an adjusting block 23. The adjusting block 23 is connected to the clamping jaw cylinder 21 and is disposed opposite to the second positioning mechanism 30 for abutting against the other end of the mounting shell 210. Thus, by providing the adjusting block 23, the adjusting block 23 can be prepared using the required material. For example, it is prepared using the same polyetheretherketone as the clamping jaw 22 to avoid scratching the mounting shell 210 due to a hard-on-hard contact mode between the adjusting block 23 and the mounting shell 210. Among them, the adjusting block 23 and the second positioning mechanism 30 in this embodiment position both ends of the mounting shell 210 in the X direction, and the clamping jaw 22 positions the mounting shell 210 in the Z direction and the Y direction by providing the profiling groove 221, so as to ensure that the mounting shell 210 does not move when being welded to the end cover 220.

[0039] Among them, please refer to Figure 3 , the adjusting block 23 in this embodiment is L-shaped, including a connecting portion 231 and an abutting portion 232. The connecting portion 231 is used to connect to the clamping jaw cylinder 21, and the abutting portion 232 is used to abut against the end of the mounting shell 210.

[0040] Furthermore, the adjusting block 23 and the clamping jaw cylinder 21 are detachably connected, that is, the connecting portion 231 and the clamping jaw cylinder 21 are detachably connected, so as to be able to adjust the different installations of the connecting portion 231 on the clamping jaw cylinder 21, thereby enabling the abutting portion 232 to be far from or close to the second positioning mechanism 30, adjusting the distance between the second positioning mechanism 30, and being able to adapt to the clamping of the mounting shell 210 with different heights in the X direction, improving the practicability of the entire housing positioning device 100.

[0041] Specifically, when detachably connecting the connecting portion 231 and the jaw cylinder 21, the jaw cylinder 21 is provided with a plurality of mounting holes 211 arranged in the X direction, and the adjusting block 23 is provided with a waist-shaped hole 233. The length direction of the waist-shaped hole 233 is parallel to the X direction and can communicate with each mounting hole 211. In this way, the adjusting block 23 is fixed to the jaw cylinder 21 by passing a bolt through the waist-shaped hole 233 to connect with the mounting hole 211; after loosening the bolt, the adjusting block 23 is moved to connect with different mounting holes 211, and the mounting position of the adjusting block 23 can be adjusted.

[0042] Please refer to Figure 2 , in an embodiment of the present utility model, the second positioning mechanism 30 is a telescopic mechanism. The telescopic mechanism is slidably arranged relative to the base frame 10 and is used to abut against the end face of the end cover 220. Thus, by setting it to be telescopic, when taking and placing the mounting shell 210 and the end cover 220, the telescopic mechanism can be compressed, which is convenient for taking and placing the mounting shell 210 and the end cover 220.

[0043] Specifically, the telescopic mechanism includes a telescopic shaft 31, an elastic member 32, and a collar 33. The telescopic shaft 31 is slidably connected to the driving mechanism 40 and is slidably arranged relative to the base frame 10 and the linear bearings 46 in each pulley group. The collar 33 is sleeved on the telescopic shaft 31, and the elastic member 32 abuts between the base frame 10 and the collar 33. In this way, the end cover 220 is abutted by the telescopic shaft 31, and under the elastic force of the elastic member 32, the abutting force of the telescopic shaft 31 against the end cover base frame 10 is realized.

[0044] Among them, when it is necessary to take and place the housing 200, the telescopic shaft 31 is manually driven to slide in a direction away from the first positioning mechanism 20. At this time, the elastic member 32 is also compressed. After removing the housing 200, the telescopic shaft 31 is manually driven to return to its original position, and the elastic member 32 drives the collar 33 to return to its original position.

[0045] Furthermore, since the telescopic shaft 31 needs to be in contact with the end cover 220 for a long time, in order to avoid wear on the telescopic shaft 31 and cause replacement costs, the telescopic mechanism further includes an abutting block 34. The abutting block 34 is detachably mounted on the telescopic shaft 31 and is used to abut against the end cover 220. In this way, when the abutting block 34 is worn after long-term use, it can be replaced. Compared with the method of replacing the telescopic shaft 31, the replacement difficulty is reduced and the replacement cost is reduced.

[0046] Specifically, the abutting block 34 in this embodiment can be made of the same material as the jaw 22, for example, polyether ether ketone, which can have a certain softness to avoid scratching the mounting shell 210 by contacting it in a hard way with the metal mounting shell 210.

[0047] Further, the telescopic shaft 31 passes through the collar 33, and a support step 311 is formed on the telescopic shaft 31. The support step 311 is used to abut against the abutting block 34. In this way, by providing the support step 311 on the telescopic shaft 31, compared with the way of arranging the abutting block 34 on the end face of the telescopic shaft 31, the contact area with the abutting block 34 can be increased, and the installation stability of the abutting block 34 can be improved.

[0048] For the above-mentioned housing positioning device 100, by setting the first positioning mechanism 20 to be a clamping manner, the housing 200 can be clamped and released, which is convenient for taking and placing the housing 200; by setting the second positioning mechanism 30 to be a telescopic manner, when taking and placing the housing 200, it can be telescoped relative to the base frame 10, which is convenient for taking and placing the housing 200; by providing the adjusting block 23, the distance between the adjusting block 23 and the second positioning mechanism 30 can be adjusted, so as to be adapted to clamping housings 200 of different heights, which is more practical; the clamping jaws 22, the adjusting block 23 and the abutting block 34 are made of polyether ether ketone to avoid hard-to-hard scratches on the housing 200.

[0049] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the present invention.

Claims

1. A housing positioning device (100) for positioning a housing (200) of a battery, the housing (200) including a mounting housing (210) and an end cover (220) provided at one end of the mounting housing (210), characterized in that, Comprising: A base frame (10); A first positioning mechanism (20) for positioning the mounting shell (210); A second positioning mechanism (30), which is oppositely arranged in the X direction to the first positioning mechanism (20), for positioning the end cover (220) and enabling the end cover (220) to abut against one end of the mounting shell (210); A driving mechanism (40) mounted on the base frame (10) and respectively connected to the first positioning mechanism (20) and the second positioning mechanism (30) to be able to drive the first positioning mechanism (20) and the second positioning mechanism (30) to rotate synchronously.

2. The housing positioning device (100) according to claim 1, characterized in that, The first positioning mechanism (20) is a clamping mechanism capable of clamping and releasing the mounting shell (210).

3. The housing positioning device (100) according to claim 2, characterized in that, The clamping mechanism includes a clamping jaw cylinder (21) and a pair of clamping jaws (22) provided on the clamping jaw cylinder (21), and the pair of clamping jaws (22) are used for clamping and releasing the mounting shell (210).

4. The housing positioning device (100) according to claim 3, characterized in that, The clamping mechanism further includes an adjusting block (23), the adjusting block (23) is connected to the clamping jaw cylinder (21) and is oppositely arranged to the second positioning mechanism (30) for abutting against the other end of the mounting shell (210).

5. The housing positioning device (100) according to claim 4, characterized in that, The adjusting block (23) is detachably connected to the clamping jaw cylinder (21).

6. The housing positioning device (100) according to claim 5, characterized in that, The clamping jaw cylinder (21) is provided with a plurality of mounting holes (211) arranged along the X direction, and the adjusting block (23) is provided with a waist-shaped hole (233), and the length direction of the waist-shaped hole (233) is parallel to the X direction and can communicate with each of the mounting holes (211).

7. The housing positioning device (100) according to any one of claims 3-6, characterized in that, The clamping jaw (22) is provided with a profiling groove (221) for placing the mounting shell (210).

8. The housing positioning device (100) according to any one of claims 1-6, characterized in that, The second positioning mechanism (30) is a telescopic mechanism, and the telescopic mechanism is slidably arranged relative to the base frame (10) for abutting against the end face of the end cover (220).

9. The housing positioning device (100) according to claim 8, characterized in that, The telescopic mechanism includes a telescopic shaft (31), an elastic member (32) and a collar (33), the telescopic shaft (31) is slidably connected to the driving mechanism (40), the collar (33) is slidably sleeved on the telescopic shaft (31), and the elastic member (32) abuts between the base frame (10) and the collar (33).

10. The housing positioning device (100) according to claim 9, characterized in that, The telescopic mechanism further includes a abutting block (34), the abutting block (34) is detachably mounted on the telescopic shaft (31) for abutting against the end cover (220).

11. The housing positioning device (100) according to claim 10, characterized in that, The telescopic shaft (31) passes through the collar (33), and a support step (311) is formed on the telescopic shaft (31) for mounting the abutting block (34).

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