Electroplating processing clamp for battery shell

Abstract

The utility model relates to a battery shell electroplating processing clamp which comprises a U-shaped support, a sliding hole and a mounting hole are formed in the two ends of the U-shaped support respectively, and a first clamping rod is mounted in the sliding hole in a sliding mode. The utility model relates to the technical field of battery shell electroplating. According to the electroplating machining clamp for the battery shell, by pressing the U-shaped support, the ejector rod makes contact with the bottom wall of the electroplating pool, the ejector rod jacks up the battery shell, then the contact point of a battery is lowered, meanwhile, the fixing cylinder moves downwards and rotates at the same time so as to drive the battery shell to rotate, and then after the battery shell rotates, the battery shell is fixed to the electroplating pool. And the original contact position of the spherical bulge and the telescopic head is staggered with the spherical bulge, so that any position of the battery shell can be in full contact with electroplating liquid, the effect that a contact point is difficult to uniformly coat a film can be effectively avoided, and the electroplating uniformity can be fully improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery shell electroplating, in particular to a battery shell electroplating processing fixture. Background Art

[0002] During the production process of lithium battery shells, the lithium battery shells need to be coated with a film so that a layer of metal film is attached to the surface of the lithium battery shells to prevent oxidation of the lithium battery shells.

[0003] Chinese patent publication number CN216107289U discloses a lithium battery shell electroplating device, comprising a structural body, the structural body comprising a frame, the upper end surface of the frame is provided with a conveying mechanism for conveying lithium battery shells, the bottom surface of the frame is provided with a plating tank for containing a plating solution, the plating tank is movably provided with a plating basket, and the upper end surface of the frame is provided with a lifting mechanism for driving the plating basket to rise and fall;

[0004] The above patent mainly places the lithium battery shell to be electroplated on a conveyor belt, and the servo motor drives the transmission roller to rotate, thereby driving the conveyor belt to move forward, and then transports the lithium battery shell on the conveyor belt to the electroplating basket, starts the drive motor, and the drive motor drives the screw to rotate, and the screw drives the nut seat and the electroplating basket to move downward, so that the lithium battery shell to be electroplated is immersed in the plating solution.

[0005] However, when the lithium battery shell is placed inside the electroplating tank, a closed point will be formed at the contact position between the lithium battery shell and the electroplating basket, which makes it difficult for the contact position between the lithium battery shell and the electroplating basket to contact the electroplating solution, and further makes it difficult for the covered position during electroplating to be coated, making the covered position of the battery shell more susceptible to oxidation after subsequent use, resulting in a greatly reduced service life of the battery shell. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a battery shell electroplating processing fixture to solve the technical problems mentioned in the above background technology.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions:

[0008] A battery shell electroplating processing fixture, comprising a U-shaped bracket, wherein two ends of the U-shaped bracket are respectively provided with a sliding hole and a mounting hole, a first clamping rod is slidably mounted inside the sliding hole, a bottom end of the first clamping rod is provided with four extension rods arranged in a circular array, and the four extension rods are arranged in an array with the axis line of the first clamping rod, a telescopic head is provided at the bottom end of the extension rod, an elastic member is provided inside the telescopic head, a guide hole is provided at the bottom end of the first clamping rod, a fixing tube is slidably mounted inside the guide hole, and a telescopic joint is provided at the bottom end of the fixing tube;

[0009] A second clamping rod is fixedly arranged inside the mounting hole, two positioning rods are arranged at the top end of the second clamping rod, spherical protrusions are arranged at the upper ends of the two positioning rods away from the second clamping rod, a through hole is opened inside the positioning rod, a push rod is arranged inside the through hole, and the bottom end of the push rod extends out of the through hole.

[0010] Furthermore, a connecting plate is provided at the top end of the first clamp rod, a supporting spring is provided at the bottom end of the connecting plate, the supporting spring is sleeved on the outer surface of the first clamp rod, and the bottom end of the supporting spring is fixedly connected to the upper end of the U-shaped bracket.

[0011] Furthermore, an installation groove is provided on the inner wall of the through hole, a return spring is provided inside the installation groove, and two ends of the return spring are respectively fixedly connected to the groove wall of the installation groove and the outer wall of the push rod.

[0012] Furthermore, the first clamping rod is hollow, and an air guide hole communicating with the inner cavity of the first clamping rod is provided at the inner top end of the guide hole.

[0013] Furthermore, a steel sealing ring is provided at the top end of the fixed tube, and the outer wall of the steel sealing ring is in contact with the inner wall of the guide hole.

[0014] Furthermore, the outer surface of the fixing tube is provided with an external thread, and the inner hole wall of the guide hole is provided with a thread groove threadably matched with the external thread.

[0015] Furthermore, an electric lifting rod is arranged on the top of the U-shaped bracket.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects:

[0017] 1. A battery shell electroplating processing fixture, by pressing the U-shaped bracket, makes the push rod contact with the bottom wall of the electroplating tank, so that the push rod lifts the battery shell, and then lowers the contact point of the battery, and at the same time, the fixed cylinder moves downward and rotates to drive the battery shell to rotate, and then after the battery shell is rotated, the original contact position of the spherical protrusion and the telescopic head will be staggered with the spherical protrusion, so that any position of the battery shell can be fully in contact with the electroplating solution, which can effectively avoid the effect that the contact point is difficult to be uniformly plated, and can fully improve the uniformity of electroplating;

[0018] 2. In this battery shell electroplating processing fixture, when the battery shell is clamped into the interior of the U-shaped bracket, the spherical protrusions at the top of the positioning rods on both sides of the second clamp rod are in contact with the bottom end surface of the battery shell, and the telescopic heads at the bottom ends of the four extension rods around the first clamp rod are in contact with the upper end surface of the battery shell. At this time, the purpose of fixing the battery shell is achieved, and then through the joint support of multiple points, the effect of improving the stability of the battery shell when it is fixed is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The utility model is a structural schematic diagram of a battery shell electroplating processing fixture.

[0021] Figure 2 The utility model is a schematic structural diagram of a first clamping rod of a battery casing electroplating processing fixture.

[0022] Figure 3 The utility model is a schematic structural diagram of a second clamping rod of a battery casing electroplating processing fixture.

[0023] Figure 4 The utility model is a cross-sectional view of a first clamping rod of a battery casing electroplating processing fixture.

[0024] Figure 5 The utility model is a cross-sectional view of a second clamping rod of a battery casing electroplating processing fixture.

[0025] In the figure, 1. U-shaped bracket; 2. sliding hole; 3. mounting hole; 4. first clamping rod; 5. extension rod; 6. telescopic head; 7. elastic member; 8. guide hole; 9. fixing tube; 10. second clamping rod; 11. positioning rod; 12. spherical protrusion; 13. through hole; 14. push rod; 15. connecting plate; 16. supporting spring; 17. mounting groove; 18. return spring; 19. air guide hole; 20. external thread; 21. thread groove; 22. electric lifting rod. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] Example:

[0028] Reference Figure 1-Figure 5 The utility model discloses a battery shell electroplating processing fixture, comprising a U-shaped bracket 1, wherein two ends of the U-shaped bracket 1 are respectively provided with a sliding hole 2 and a mounting hole 3, a first clamping rod 4 is slidably mounted inside the sliding hole 2, and four extension rods 5 arranged in a circular array are arranged at the bottom end of the first clamping rod 4, and the four extension rods 5 are arranged in an axial line array of the first clamping rod 4, a telescopic head 6 is arranged at the bottom end of the extension rod 5, and an elastic member 7 is arranged inside the telescopic head 6, a guide hole 8 is opened at the bottom end of the first clamping rod 4, and a fixing tube 9 is slidably arranged inside the guide hole 8;

[0029] A second clamping rod 10 is fixedly arranged inside the mounting hole 3, two positioning rods 11 are arranged at the top end of the second clamping rod 10, and a spherical protrusion 12 is arranged at one end of the upper end of the two positioning rods 11 away from the second clamping rod 10, a through hole 13 is opened inside the positioning rod 11, a push rod 14 is arranged inside the through hole 13, and the bottom end of the push rod 14 extends out of the through hole 13.

[0030] In this embodiment, a bracket with an opening is formed by setting a U-shaped bracket 1, and a sliding hole 2 and a mounting hole 3 are respectively opened at both ends of the open bracket, and the sliding hole 2 and the mounting hole 3 are set to install the first clamping rod 4 and the second clamping rod 10, and the battery housing is installed inside the U-shaped bracket 1, and the battery housing is clamped by the first clamping rod 4 and the second clamping rod 10, so as to achieve the purpose of fixing the battery housing;

[0031] Specifically, when the battery housing is inserted into the U-shaped bracket 1, the spherical protrusions 12 at the top of the positioning rods 11 on both sides of the second clamping rod 10 contact the bottom end surface of the battery housing, and the telescopic heads 6 at the bottom ends of the four extension rods 5 around the first clamping rod 4 contact the upper end surface of the battery housing, thereby achieving the purpose of fixing the battery housing;

[0032] When the U-shaped bracket 1 is inserted into the electroplating tank, the U-shaped bracket 1 is pressed to change the contact between the first clamping rod 4 and the second clamping rod 10 and the battery housing, so that the battery housing is deflected, and the U-shaped bracket 1 is raised to clamp the battery housing again by the first clamping rod 4 and the second clamping rod 10, so as to avoid the problem of the battery housing having a dead angle during electroplating;

[0033] Specifically, the U-shaped bracket 1 is inserted into the interior of the electroplating tank with one end of the mounting hole 3 facing downward, and the bottom end of the push rod 14 is in contact with the bottom end of the interior of the electroplating tank, and then pressure is continued to be applied to the U-shaped bracket 1 to move the push rod 14 upward. At this time, the top end of the push rod 14 will push the battery shell upward, and the two positioning rods 11 and the two spherical protrusions 12 will be separated from the battery shell. Since the top end of the push rod 14 is arc-shaped, after the bottom end of the battery shell is separated from the spherical protrusions 12, the battery shell is in contact with only one point of the push rod 14, and in the process of the push rod 14 pushing the battery shell to move upward, the telescopic head 6 will be contracted, and the fixed tube 9 will be moved downward by the contraction of the telescopic head 6, and at the same time, the fixed tube 9 will be rotated. The battery shell will contact with the telescopic joint in the process of moving upward. Therefore, in the process of rotating the fixed tube 9, the friction between the bottom end of the telescopic joint and the battery shell will drive the battery shell to rotate, so that the contact positions of the top end of the battery shell and the telescopic head 6 are staggered.

[0034] The pressure applied to the U-shaped bracket 1 is then released, so that the four telescopic heads 6 automatically rebound under the influence of the elastic member 7, and the fixing tube 9 is retracted, and the telescopic joint and the battery housing are separated from each other. Since the battery housing has been rotated, the position where the bottom end of the battery housing contacts the spherical protrusion 12 is also deflected;

[0035] To sum up, the battery shell is rotated to change the contact position with the spherical protrusion 12 and the telescopic head 6, so that any position of the battery shell can fully contact the electroplating solution, which can effectively avoid the effect of difficulty in uniform coating at the contact point and can fully improve the uniformity of electroplating.

[0036] In a further preferred embodiment of the present invention, Figure 1-5 As shown, a connecting plate 15 is provided at the top end of the first clamping rod 4, and a supporting spring 16 is provided at the bottom end of the connecting plate 15. The supporting spring 16 is sleeved on the outer surface of the first clamping rod 4, and the bottom end of the supporting spring 16 is fixedly connected to the upper end of the U-shaped bracket 1.

[0037] In this embodiment, the connection plate 15 is provided to install the support spring 16, and the support spring 16 is in a compressed state when not under stress. Therefore, after being inserted into the battery housing, the support spring 16 will be stretched to exert pressure on the battery housing, thereby achieving the effect of fixing the battery housing.

[0038] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the inner wall of the through hole 13 is provided with a mounting groove 17, and a return spring 18 is arranged inside the mounting groove 17. The two ends of the return spring 18 are fixedly connected to the groove wall of the mounting groove 17 and the outer wall of the push rod 14 respectively.

[0039] In this embodiment, the mounting groove 17 is provided to install a return spring 18, and the two ends of the return spring 18 are respectively fixedly connected to the groove wall of the mounting groove 17 and the outer wall of the push rod 14, so when the push rod 14 is subjected to a thrust, the return spring 18 will be stretched, and then when the pressure on the U-shaped bracket 1 is reduced, the push rod 14 will retract, so that the battery shell continues to contact the two spherical protrusions 12, so as to achieve the effect of fixing the battery shell.

[0040] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the first clamping rod 4 is hollow, and the inner top end of the guide hole 8 is provided with an air guide hole 19 which is connected with the inner cavity of the first clamping rod 4 .

[0041] In this embodiment, since the interior of the first clamping rod 4 is hollow, when the top rod 14 pushes the battery shell to move upward and compresses the telescopic head 6, the pressure inside the telescopic head 6 will enter the interior of the guide hole 8 through the cavity inside the first clamping rod 4 and the connecting hole 13, and apply downward pressure to the fixed tube 9, thereby achieving the purpose of making the telescopic section at the bottom end of the fixed tube 9 contact with the top end of the battery shell.

[0042] In a further preferred embodiment of the present invention, Figure 1-5 As shown, a steel sealing ring is provided at the top end of the fixing tube 9 , and the outer wall of the steel sealing ring is in contact with the inner wall of the guide hole 8 .

[0043] In this embodiment, the steel sealing ring is provided to improve the sealing between the guide hole 8 and the fixing tube 9, so that the air pressure pushes the fixing tube 9 to move downward, thereby facilitating the contact between the expansion joint and the battery housing.

[0044] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the outer surface of the fixing tube 9 is provided with an external thread 20 , and the inner hole wall of the guide hole 8 is provided with a thread groove 21 threadably matched with the external thread 20 .

[0045] In this embodiment, through the arrangement of the external thread 20 and the thread groove 21, when the fixed tube 9 moves downward under the influence of the air pressure, the fixed tube 9 can rotate under the influence of the external thread 20 and the thread groove 21, so that the fixed tube 9 can rotate and move downward, and because the bottom end of the expansion joint is in contact with the battery casing at this time, the battery casing can be driven to rotate with the rotation of the fixed tube 9, so as to achieve the effect that all parts of the battery casing can fully contact with the electroplating solution.

[0046] In a further preferred embodiment of the present invention, Figure 1-5 As shown, an electric lifting rod 22 is provided at the top of the U-shaped bracket 1.

[0047] In this embodiment, the electric telescopic rod is used to provide pressure and upward pulling force to the U-shaped bracket 1, so that the U-shaped bracket 1 can reciprocate up and down inside the electroplating tank, thereby achieving the effect of improving the uniformity of electroplating.

[0048] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A battery shell electroplating fixture, characterized in that: The invention comprises a U-shaped bracket (1), wherein two ends of the U-shaped bracket (1) are respectively provided with a sliding hole (2) and a mounting hole (3), a first clamping rod (4) is slidably mounted inside the sliding hole (2), four extension rods (5) arranged in a circular array are arranged at the bottom end of the first clamping rod (4), and the four extension rods (5) are arranged in an array along the axis of the first clamping rod (4), a telescopic head (6) is arranged at the bottom end of the extension rod (5), an elastic member (7) is arranged inside the telescopic head (6), a guide hole (8) is arranged at the bottom end of the first clamping rod (4), a fixing tube (9) is slidably mounted inside the guide hole (8), and a telescopic joint is arranged at the bottom end of the fixing tube (9); A second clamping rod (10) is fixedly arranged inside the mounting hole (3), two positioning rods (11) are arranged at the top end of the second clamping rod (10), and a spherical protrusion (12) is arranged at one end of the upper end of the two positioning rods (11) away from the second clamping rod (10), a through hole (13) is opened inside the positioning rod (11), a push rod (14) is arranged inside the through hole (13), and the bottom end of the push rod (14) extends out of the through hole (13).

2. A battery casing electroplating fixture according to claim 1, characterized in that: A connecting plate (15) is provided at the top end of the first clamping rod (4), and a supporting spring (16) is provided at the bottom end of the connecting plate (15). The supporting spring (16) is sleeved on the outer surface of the first clamping rod (4), and the bottom end of the supporting spring (16) is fixedly connected to the upper end of the U-shaped bracket (1).

3. A battery casing electroplating fixture according to claim 2, characterized in that: The inner wall of the through hole (13) is provided with a mounting groove (17), a return spring (18) is arranged inside the mounting groove (17), and two ends of the return spring (18) are respectively fixedly connected to the groove wall of the mounting groove (17) and the outer wall of the push rod (14).

4. A battery casing electroplating fixture according to claim 3, characterized in that: The first clamping rod (4) is hollow, and the inner top end of the guide hole (8) is provided with an air guide hole (19) which is in communication with the inner cavity of the first clamping rod (4).

5. A battery casing electroplating fixture according to claim 4, characterized in that: A steel sealing ring is provided at the top end of the fixed tube (9), and the outer wall of the steel sealing ring is in contact with the inner wall of the guide hole (8).

6. A battery casing electroplating fixture according to claim 5, characterized in that: The outer surface of the fixing tube (9) is provided with an external thread (20), and the inner hole wall of the guide hole (8) is provided with a thread groove (21) threadably matched with the external thread (20).

7. A battery casing electroplating fixture according to claim 6, characterized in that: An electric lifting rod (22) is arranged at the top end of the U-shaped bracket (1).

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