Battery tab hole stamping device

Abstract

The utility model relates to the technical field of battery production and processing, discloses a battery tab hole stamping device, and solves the problems of adhesion and damage between a punch and a pole piece and insufficient stamping adaptability to pole pieces with different thicknesses in the existing battery tab hole stamping process. The device is mainly composed of a workbench, a lifting tower, a supporting frame, a stamping assembly, a leveling mechanism and the like. Due to the unique design of the stamping assembly, impact force generated at the stamping moment of the punch is buffered by means of a buffer spring and a collision column structure, pole piece adhesion is prevented through a diamond coating, and the pole pieces are effectively protected. The height adjusting function depends on the cooperation of the driving motor, the screw rod and the movable seat to adapt to different pole pieces. And the leveling mechanism is used for leveling the pole piece through a push rod, an elastic telescopic rod and an elastic grinding roller before stamping, so that the stamping precision is improved. According to the battery tab hole punching device, the product yield is increased, the universality of the device is enhanced, and the high efficiency and accuracy of battery tab hole punching are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery production processing technical field, concretely is a kind of battery tab hole stamping device. BACKGROUND

[0002] Battery tab hole is the small hole on the battery tab. The tab is the metal part of the battery positive and negative lead-out, and its main role is to connect the electrode inside the battery with the external circuit. Battery tab hole stamping is a kind of processing method that applies pressure to the battery tab material through a die to make it produce plastic deformation and form the required hole type.

[0003] The existing Chinese patent with publication number CN221675446U discloses a lithium battery stamping support, mainly including a processing plate, a support leg, a support plate, a positioning column, a forming die, a feeding mechanism, a stamping mechanism, a collecting mechanism, a pressing mechanism and a pushing assembly. When working, the electrode sheet is inserted through the C-shaped fixed frame, and the electric telescopic rod drives the pressing plate to press the electrode sheet. Then the driving motor drives the lead screw to rotate through the transmission part, and the moving block drives the electrode sheet to move above the forming die. Then the stamping cylinder pushes the moving plate, and the bottom trapezoidal pressing block first contacts and fixes the electrode sheet. The installation plate drives the stamping head to cooperate with the forming die for stamping. After stamping is completed, the electric push rod pushes the push rod and the pushing plate to push the finished product through the discharge opening to the collecting box. The box door handle can be pulled to open the discharge opening to discharge the finished product. The guide plate plays a guiding role, so as to realize the stamping processing and finished product collection of the electrode sheet. In the stamping process, the vacuum adsorption and mechanical jamming effect between the electrode sheet and the punch head are enhanced, so that the electrode sheet is difficult to smoothly separate from the punch head, and there are problems of adhesion and damage risk of the electrode sheet.

[0004] In view of the above-mentioned related technology, the present application provides a battery tab hole stamping device that can eliminate the drawbacks of existing devices. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a battery tab hole stamping device, which is used for work, so as to solve the problems of adhesion, damage and insufficient stamping adaptability of different thickness electrode sheets between the punch head and the electrode sheet in the existing battery tab hole stamping process.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a battery tab hole stamping device, comprising a workbench, a lifting tower is fixedly arranged on one side of the workbench, a connecting groove is opened on the side wall of the lifting tower, a supporting frame is slidably arranged in the connecting groove, and sliding grooves are opened on the inner walls of the two sides of the supporting frame. A stamping assembly is slidably connected on the sliding grooves, and a leveling mechanism is movably connected between the supporting frame and the stamping assembly.

[0007] The stamping assembly comprises a hydraulic cylinder fixedly installed at the top end of the support frame, an output end of the hydraulic cylinder is fixedly connected with a stamping seat, the stamping seat is slidingly arranged in the sliding groove, a punch is screw-connected to the other end of the stamping seat, a column hole is formed in the other end of the punch, ring grooves are formed in the outer walls on the two sides of the punch, a buffer spring is fixedly connected to the top surface in the column hole, the other end of the buffer spring is fixedly connected with a striking column, connecting rods are fixedly connected to the outer walls on the two sides of the striking column corresponding to the positions of the ring grooves, and a diamond coating is arranged on the end surface of the striking column in contact with the battery tab.

[0008] Preferably, the flattening mechanism comprises a push rod, an elastic telescopic rod and an elastic roller, the push rod, the elastic telescopic rod and the elastic roller are symmetrically arranged on the outer walls of the two sides of the support frame, one end of the push rod is fixedly connected to the support frame through a connecting piece, the other end of the push rod is movably connected with the elastic roller, the elastic roller is movably abutted with the battery tab, the push rod is movably connected with the elastic telescopic rod, and the other end of the elastic telescopic rod is fixedly connected to the stamping seat through a connecting piece.

[0009] Preferably, the support frame is in an inverted U-shaped structure.

[0010] Preferably, a driving motor is fixedly installed at the top end of the lifting tower, a screw rod is fixedly connected to the output shaft of the driving motor, and the other end of the screw rod is rotatably connected to the inner wall at the bottom end of the connecting groove.

[0011] Preferably, a movable seat is screw-connected to the screw rod, and the movable seat is fixedly connected with the support frame.

[0012] Preferably, an ear hole is formed in the bottom end of the workbench.

[0013] Compared with the prior art, the battery tab hole stamping device has the following beneficial effects:

[0014] 1. The battery tab hole stamping device has the buffer spring and the striking column structure arranged in the stamping assembly, so that the impact force of the punch on the tab can be effectively dispersed at the moment of stamping, and the possibility of damage such as cracks and deformation of the tab due to uneven or excessive force is greatly reduced. Meanwhile, the diamond coating on the end surface of the punch effectively reduces the adhesion phenomenon between the tab and the punch, and avoids the tab pulling damage caused by adhesion.

[0015] 2. The battery tab hole stamping device has the height adjustable function, and the height position of the stamping assembly can be conveniently adjusted according to the battery tabs of different thicknesses and specifications through the cooperation of the driving motor, the screw rod and the movable seat, so as to ensure the accuracy and effectiveness of the stamping operation. The flattening mechanism utilizes the synergistic effect of the push rod, the elastic telescopic rod and the elastic roller to finely roll and flatten the tab before stamping, so that the flatness of the tab surface reaches the best state, and a good foundation condition is provided for the subsequent stamping process, thereby greatly improving the precision and quality of the tab hole stamping. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic view of the utility model;

[0017] Figure 2 It is the stamping assembly exploded structure schematic view of the utility model;

[0018] Figure 3 It is the section structure schematic view of the utility model;

[0019] Figure 4 It is the stamp head internal structure schematic view of the utility model.

[0020] In the drawing: 1, workbench;10, ear hole;2, lifting tower;20, connecting groove;21, drive motor;22, screw;23, movable seat;3, support frame;30, sliding slot;4, stamping assembly;41, hydraulic cylinder;42, stamping seat;43, stamp head;431, column hole;432, ring groove;433, buffer spring;434, impact column;435, connecting rod;5, leveling mechanism;51, push rod;52, elastic telescopic rod;53, elastic roller. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the utility model.

[0022] In order to further understand the content of the utility model, the utility model will be described in detail with reference to the drawings.

[0023] In combination with Figures 1-4 A battery tab hole stamping device, including workbench 1, one side of workbench 1 is fixed with lifting tower 2, the side wall of lifting tower 2 is opened with connecting groove 20, connecting groove 20 is slidably provided with support frame 3, and the inner wall of the both sides of support frame 3 is opened with sliding slot 30. Stamping assembly 4 is slidably connected on sliding slot 30, and leveling mechanism 5 is movably connected between support frame 3 and stamping assembly 4.

[0024] The stamping assembly 4 is fixed at the top end of the support frame 3, and the output end of the hydraulic cylinder 41 is connected to the stamping seat 42. The stamping seat 42 slides in the sliding groove 30, and the other end of the stamping seat 42 is screwed to the stamping head 43. The other end of the stamping head 43 is provided with a column hole 431, and the outer walls on both sides are provided with ring grooves 432. The top surface of the column hole 431 is connected to the buffer spring 433, and the other end of the buffer spring 433 is connected to the impact column 434. The impact column 434 is connected to the connecting rod 435 on the outer walls on both sides corresponding to the positions of the ring grooves 432. The contact end surface of the impact column 434 and the battery pole piece is provided with a diamond coating. During the stamping process, the hydraulic cylinder 41 drives the stamping seat 42 to drive the stamping head 43 to perform stamping operation on the battery pole piece. The buffer spring 433 and the impact column 434 can play a buffering role at the moment of stamping, reduce the impact force of the stamping head 43 on the pole piece, avoid damage to the pole piece due to excessive instantaneous force, reduce the friction between the stamping head 43 and the pole piece, prevent the pole piece from sticking to the stamping head 43, and ensure the stamping quality and efficiency.

[0025] The leveling mechanism 5 includes a push rod 51, an elastic telescopic rod 52, and an elastic roller 53, which are symmetrically arranged on the outer walls of the support frame 3. One end of the push rod 51 is connected to the support frame 3, and the other end is connected to the elastic roller 53 and is in movable abutment with the battery pole piece. The push rod 51 is connected to the elastic telescopic rod 52, and the other end of the elastic telescopic rod 52 is connected to the stamping seat 42. Before stamping, the elastic roller 53 can roll and level the battery pole piece under the action of the push rod 51 and the elastic telescopic rod 52, ensure the flatness of the pole piece surface, improve the stamping precision, and make the position of the stamped lug hole more accurate and the quality more stable.

[0026] The driving motor 21 is fixedly installed at the top end of the lifting tower 2, the output shaft of the driving motor 21 is connected to the screw rod 22, the other end of the screw rod 22 is rotatably connected to the inner wall at the bottom end of the connecting groove 20, the screw rod 22 is screwed with the movable seat 23, and the movable seat 23 is fixedly connected with the support frame 3. The driving motor 21 drives the screw rod 22 to rotate, which can drive the movable seat 23 to move up and down, thereby adjusting the height position of the support frame 3 and the stamping assembly 4, adapting to the stamping needs of battery pole pieces of different thicknesses or specifications, and enhancing the versatility and flexibility of the device.

[0027] The bottom end of the workbench 1 is provided with an ear hole 10, which is convenient for discharging waste after stamping.

[0028] Working principle: when working, firstly, the battery pole piece is placed on the workbench 1. The driving motor 21 is started, the screw rod 22 is driven to rotate, the movable seat 23 screwed on the screw rod 22 drives the support frame 3 to move up and down in the connecting groove 20 of the lifting tower 2, is adjusted to the appropriate height, the stamping assembly 4 is aligned with the pole piece. Then, the hydraulic cylinder 41 pushes the stamping seat 42 to slide downward along the sliding groove 30 of the support frame 3, drives the punch 43 to stamp the pole piece. The buffer spring 433 and the impact column 434 on the punch 43 buffer the impact force at the moment of stamping, the diamond coating on the end face prevents the pole piece from sticking. Before stamping, the elastic roller 53 of the leveling mechanism 5 is rolled and leveled under the action of the push rod 51 and the elastic telescopic rod 52, ensures the stamping precision. The waste produced by stamping can be discharged through the ear hole 10 at the bottom end of the workbench 1.

[0029] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery tab punching device, comprising a workbench (1), wherein a lifting tower (2) is fixedly installed on one side of the workbench (1), a connecting groove (20) is opened on the side wall of the lifting tower (2), a support frame (3) is slidably installed in the connecting groove (20), and sliding grooves (30) are opened on the inner walls of both sides of the support frame (3), characterized in that: A stamping assembly (4) is slidably connected to the slide groove (30), and a leveling mechanism (5) is movably connected between the support frame (3) and the stamping assembly (4); The stamping assembly (4) includes a hydraulic cylinder (41), which is fixedly installed on the top of the support frame (3). The output end of the hydraulic cylinder (41) is fixedly connected to a stamping seat (42), which is slidably disposed in the slide groove (30). The other end of the stamping seat (42) is screwed with a punch (43), which has a column hole (431) at the other end. The outer walls on both sides of the punch (43) have annular grooves (432). A buffer spring (433) is fixedly connected to the top surface inside the column hole (431). A strike post (434) is fixedly connected to the other end of the buffer spring (433). A connecting rod (435) is fixedly connected to the outer walls on both sides of the strike post (434) corresponding to the position of the annular groove (432). The end face of the strike post (434) that contacts the battery electrode is coated with a diamond coating.

2. The battery tab hole stamping device according to claim 1, characterized in that: The leveling mechanism (5) includes a push rod (51), an elastic telescopic rod (52), and an elastic roller (53). The push rod (51), the elastic telescopic rod (52), and the elastic roller (53) are symmetrically arranged on the outer walls of both sides of the support frame (3). One end of the push rod (51) is fixedly connected to the support frame (3) through a connector. The other end of the push rod (51) is movably connected to the elastic roller (53). The elastic roller (53) movably abuts against the battery electrode. The push rod (51) is movably connected to the elastic telescopic rod (52). The other end of the elastic telescopic rod (52) is fixedly connected to the stamping seat (42) through a connector.

3. The battery tab hole stamping device according to claim 1, characterized in that: The support frame (3) has an inverted U-shaped structure.

4. The battery tab hole stamping device according to claim 1, characterized in that: A drive motor (21) is fixedly installed at the top of the lifting tower (2). A screw (22) is fixedly connected to the output shaft of the drive motor (21). The other end of the screw (22) is rotatably connected to the inner wall of the bottom end of the connecting groove (20).

5. A battery tab hole stamping device according to claim 4, characterized in that: A movable seat (23) is screwed onto the screw (22), and the movable seat (23) is fixedly connected to the support frame (3).

6. The battery tab hole stamping device according to claim 1, characterized in that: The bottom end of the workbench (1) has an ear hole (10).

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