Steel shell battery electrode slice negative electrode welding pressing claw mechanism

Abstract

The utility model discloses a steel shell battery electrode slice cathode welding press claw mechanism which comprises a battery positioning side press block, a rolling wheel and an electrode slice press claw, the electrode slice press claw is controlled by a three-axis drive to move, the rolling wheel is controlled by a press wheel drive to move horizontally, the press wheel drive and the three-axis drive are both installed on a bottom plate, and the three-axis drive is installed on the bottom plate. A semicircular groove is formed in the end part of the battery positioning side pressing block; the battery positioning side pressing block abuts against the side portion of the battery, the rolling wheel rolls from one side of the upper end of the battery to the other side of the upper end of the battery, and the electrode piece pressing claw presses an electrode piece for laser welding. According to the utility model, the rolling wheel is used for rolling and bending the welding end of the electrode plate, so that the welding end of the electrode plate is tightly attached to the negative end surface of the battery, and the electrode plate pressing claw is used for pressing and fixing the rolled and bent welding end of the electrode plate, so that the phenomenon that the welding end of the electrode plate tilts can be prevented, and the welding quality is improved.

Description

Technical Field

[0001] The utility model relates to electrode sheet welding equipment for steel-shell batteries, in particular to a negative electrode welding pressing claw mechanism for steel-shell battery electrode sheets. Background Art

[0002] During the production process of steel-cased batteries, electrode sheets need to be welded to the upper and lower ends of the steel-cased battery so that the positive and negative electrodes of the steel-cased battery are welded to the electrode sheets. During welding, one end of the electrode sheet is first welded to the positive terminal of the steel-cased battery. After the positive terminal is welded, the electrode sheet needs to be bent so that the other end of the electrode sheet is turned to the negative terminal of the steel-cased battery to facilitate welding the other end of the electrode sheet to the negative terminal of the steel-cased battery. After the electrode sheet is bent 90 degrees, the negative electrode welding end of the electrode sheet needs to be bent another 90 degrees so that the negative electrode welding end of the electrode sheet is in close contact with the negative terminal surface of the steel-cased battery.

[0003] At present, the existing bending mechanism generally uses a bending finger cylinder to bend the negative electrode welding end of the electrode sheet. The finger cylinder pushes the pressure block to bend the negative electrode welding end of the electrode sheet to 90 degrees, so that the negative electrode welding end of the electrode sheet is close to the negative end surface of the steel shell battery. However, since the electrode sheet has a certain resilience, the negative electrode welding end of the electrode sheet will be lifted up after bending, and cannot be in close contact with the negative end surface of the steel shell battery, resulting in poor contact of the negative electrode after welding. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a negative electrode welding pressure claw mechanism for a steel shell battery electrode sheet.

[0005] The purpose of the utility model is achieved through the following technical solutions: a steel shell battery electrode sheet negative electrode welding claw mechanism, including a battery positioning side pressure block, a rolling wheel and a pole piece pressure claw, the pole piece pressure claw is controlled to move by a three-axis drive, the rolling wheel is controlled to move horizontally by the pressure wheel drive, the pressure wheel drive and the three-axis drive are both mounted on the bottom plate, and the end of the battery positioning side pressure block is provided with a semicircular groove;

[0006] Before welding the electrode sheet, the battery positioning side pressure block presses against the side of the battery, and the rolling wheel rolls from one side of the upper end of the battery to the other side, rolling and bending the welding end of the electrode sheet so that the welding end of the electrode sheet is tightly attached to the negative end surface of the battery. The electrode sheet pressing claw is controlled by a three-axis drive to move and press the welding end of the electrode sheet to prevent the welding end of the electrode sheet from warping. The laser welding machine performs laser welding on the electrode sheet. After the electrode sheet welding is completed, the electrode sheet pressing claw is reset.

[0007] As an improvement of the negative electrode welding claw mechanism of the steel shell battery electrode sheet of the utility model, the pressure wheel drive includes a transverse movement control cylinder and a side mounting block, the piston rod of the transverse movement control cylinder is connected to the side mounting block, a pre-pressing assembly is provided on one side of the side mounting block, and the rolling wheel is arranged on the pre-pressing assembly.

[0008] As an improvement of the negative electrode welding claw mechanism of the steel shell battery electrode sheet of the utility model, the pre-stressing assembly includes a roller mounting block and a fixed block, the roller mounting block is movably connected to the fixed block through a guide rod, and a pre-stressing spring is provided on the guide rod. The pre-stressing spring is located between the roller mounting block and the fixed block, and the rolling wheel is installed at the bottom of the roller mounting block.

[0009] As an improvement to the negative electrode welding clamp mechanism for steel-cased battery electrodes, the base plate is fixed to a bracket, and the bracket is controlled by a servo module. The servo module is used to control the movement of the entire mechanism and enable the battery positioning side pressure block to abut the side of the battery.

[0010] As an improvement of the negative electrode welding claw mechanism of the steel shell battery electrode sheet of the utility model, the three-axis drive includes an X-axis drive, a Y-axis drive and a Z-axis drive. The X-axis drive controls the movement of the Y-axis drive, the Y-axis drive controls the movement of the Z-axis drive, and the Z-axis drive can control the up and down movement of the electrode sheet claw.

[0011] As an improvement of the negative electrode welding claw mechanism of the steel shell battery electrode sheet of the utility model, the Z-axis drive includes a cylinder, the cylinder is fixed on the cylinder mounting plate, the side of the cylinder is provided with a guide slider, the piston rod end of the cylinder is provided with a connecting block, the connecting block is connected to the guide slider, a buffer block mounting plate is provided on one side of the guide slider, a step is provided on the buffer block mounting plate, a guide rod mounting block is provided on the step, a buffer guide rod is provided on the guide rod mounting block, the bottom of the buffer guide rod is connected to the pressure rod mounting plate, a spring is provided on the buffer guide rod, and the electrode pressure claw is fixed on the pressure rod mounting plate.

[0012] As an improvement to the negative electrode welding clamp mechanism for steel-cased battery electrodes, the electrode clamp has a notch at its end. Laser welding equipment can weld the electrode through the notch, and the clamp not only presses and secures the electrode, but also meets the need for laser welding to yield.

[0013] As an improvement of the negative electrode welding claw mechanism of the steel shell battery electrode sheet of the utility model, the X-axis drive includes an X-axis servo motor, an X-axis transmission screw and an X-axis sliding plate, the X-axis servo motor is connected to the X-axis transmission screw through a coupling, the X-axis transmission screw is connected to the X-axis sliding plate through a screw nut, and the Y-axis drive is arranged on the X-axis sliding plate;

[0014] The Y-axis drive includes a Y-axis servo motor, a Y-axis transmission screw and a Y-axis sliding plate. The Y-axis servo motor is connected to the Y-axis transmission screw through a coupling, and the Y-axis transmission screw is connected to the Y-axis sliding plate through a screw nut. The Z-axis drive is arranged on the Y-axis sliding plate.

[0015] As an improvement of the negative electrode welding claw mechanism of the steel shell battery electrode sheet of the utility model, the servo module includes a profile bracket, a servo motor and a transmission screw. The output shaft of the servo motor is connected to the transmission screw through a coupling. The servo motor and the transmission screw are both arranged on the profile bracket. The profile bracket is also provided with a linear slide rail. The bottom of the bracket is connected to the linear slide rail through a slider, and the transmission screw drives the bracket to move through a screw nut.

[0016] The beneficial effect of the present invention is that the present invention adopts a rolling wheel to roll and bend the welding end of the electrode sheet, so that the welding end of the electrode sheet is tightly attached to the negative terminal surface of the battery, and the electrode sheet pressing claw is used to press and fix the rolled and bent welding end of the electrode sheet, which can prevent the welding end of the electrode sheet from warping and improve the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is the main view of the utility model;

[0019] Figure 3 This is a schematic diagram of the rolling wheel mechanism and Z-axis drive structure of the utility model;

[0020] The accompanying drawings are marked as: 1. Battery positioning side pressure block, 2. Rolling wheel, 3. Pole piece pressure claw, 4. Three-axis drive, 5. Pressure wheel drive, 6. Base plate, 7. Pre-pressing assembly, 8. Bracket, 9. Servo module, 51. Transverse movement control cylinder, 52. Side mounting block, 71. Roller mounting block, 72. Fixed block, 73. Guide rod, 41. X-axis drive, 42. Y-axis drive, 43. Z-axis drive, 431. Cylinder, 432. Guide slider, 433. Connecting block, 434. Buffer block mounting plate, 435. Guide rod mounting block, 436. Buffer guide rod, 437. Pressure rod mounting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0024] like Figure 1-Figure 3 As shown, a negative electrode welding clamping mechanism for a steel-shell battery electrode sheet comprises a battery positioning side clamping block 1, a rolling wheel 2 and a pole piece clamping clamp 3. The pole piece clamping clamp 3 is controlled to move by a three-axis drive 4, and the rolling wheel 2 is controlled to move horizontally by a clamping wheel drive 5. Both the clamping wheel drive 5 and the three-axis drive 4 are mounted on a base plate 6. A semicircular groove is provided at the end of the battery positioning side clamping block 1; the semicircular groove can form a semi-enclosed clamping and positioning effect on the round battery.

[0025] Before welding the electrode sheet, the battery positioning side pressure block 1 is pressed against and clamped on the side of the battery, and the rolling wheel 2 rolls from one side of the upper end of the battery to the other side, rolling and bending the welding end of the electrode sheet so that the welding end of the electrode sheet is tightly attached to the negative end surface of the battery. The electrode sheet pressing claw 3 is controlled by the three-axis drive 4 to move and press the welding end of the electrode sheet to prevent the welding end of the electrode sheet from warping. The laser welding machine performs laser welding on the electrode sheet. After the electrode sheet welding is completed, the electrode sheet pressing claw is reset.

[0026] Preferably, the pressure wheel drive 5 includes a transverse control cylinder 51 and a side mounting block 52, the piston rod of the transverse control cylinder 51 is connected to the side mounting block 52, a pre-pressing component 7 is provided on one side of the side mounting block 52, and the rolling wheel 2 is arranged on the pre-pressing component 7.

[0027] Preferably, the prestressing assembly 7 includes a roller mounting block 71 and a fixed block 72. The roller mounting block 71 is movably connected to the fixed block 72 through a guide rod 73. A prestressing spring is provided on the guide rod 73. The prestressing spring is located between the roller mounting block 71 and the fixed block 72. The rolling wheel 2 is installed at the bottom of the roller mounting block 71.

[0028] Preferably, the bottom plate 6 is fixed on a bracket 8, and the bracket 8 is controlled to move by a servo module 9. The servo module 9 is used to control the movement of the entire mechanism and enable the battery positioning side pressure block 1 to press against and clamp the side of the battery.

[0029] Preferably, the three-axis drive 4 includes an X-axis drive 41, a Y-axis drive 42 and a Z-axis drive 43. The X-axis drive 41 controls the movement of the Y-axis drive 42, the Y-axis drive 42 controls the movement of the Z-axis drive 43, and the Z-axis drive 43 can control the up and down movement of the pole piece pressing claw 3.

[0030] Preferably, the Z-axis drive 43 includes a cylinder 431, which is fixed on a cylinder mounting plate. A guide slider 432 is provided on the side of the cylinder 431, and a connecting block 433 is provided at the piston rod end of the cylinder 431. The connecting block 433 is connected to the guide slider 432. A buffer block mounting plate 434 is provided on one side of the guide slider 432. A step is provided on the buffer block mounting plate 434, and a guide rod mounting block 435 is provided on the step. A buffer guide rod 436 is provided on the guide rod mounting block 435, and the bottom of the buffer guide rod 436 is connected to a pressure rod mounting plate 437. A spring is provided on the buffer guide rod 436, and the pole piece pressure claw 3 is fixed on the pressure rod mounting plate 437.

[0031] Preferably, a notch is provided at the end of the electrode pressing claw 3. Laser welding equipment can weld the electrode sheet through the notch, and the electrode pressing claw can not only press and fix the electrode sheet, but also meet the need for laser welding to make way.

[0032] Preferably, the X-axis drive 41 includes an X-axis servo motor, an X-axis transmission screw and an X-axis sliding plate, the X-axis servo motor is connected to the X-axis transmission screw through a coupling, the X-axis transmission screw is connected to the X-axis sliding plate through a screw nut, and the Y-axis drive is arranged on the X-axis sliding plate;

[0033] The Y-axis drive 42 includes a Y-axis servo motor, a Y-axis transmission screw and a Y-axis sliding plate. The Y-axis servo motor is connected to the Y-axis transmission screw through a coupling, and the Y-axis transmission screw is connected to the Y-axis sliding plate through a screw nut. The Z-axis drive is set on the Y-axis sliding plate.

[0034] Preferably, the servo module 9 includes a profile bracket, a servo motor and a transmission screw. The output shaft of the servo motor is connected to the transmission screw through a coupling. The servo motor and the transmission screw are both arranged on the profile bracket. The profile bracket is also provided with a linear slide rail. The bottom of the bracket is connected to the linear slide rail through a slider, and the transmission screw drives the bracket to move through the screw nut.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and structure of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A negative electrode welding pressure claw mechanism for a steel shell battery electrode sheet, characterized in that: It includes a battery positioning side pressure block, a rolling wheel and a pole piece pressure claw, the pole piece pressure claw is controlled to move by a three-axis drive, the rolling wheel is controlled to move horizontally by a pressure wheel drive, the pressure wheel drive and the three-axis drive are both installed on the bottom plate, and a semicircular groove is provided at the end of the battery positioning side pressure block; The battery positioning side pressing block abuts against the side of the battery, the rolling wheel rolls from one side of the upper end of the battery to the other side, and the electrode sheet pressing claw presses the electrode sheet for laser welding.

2. The negative electrode welding pressing claw mechanism for steel shell battery electrode sheet according to claim 1 is characterized in that: The pressure wheel drive includes a transverse control cylinder and a side mounting block, the piston rod of the transverse control cylinder is connected to the side mounting block, a pre-pressing component is provided on one side of the side mounting block, and the rolling wheel is arranged on the pre-pressing component.

3. The negative electrode welding pressing claw mechanism for steel shell battery electrode sheet according to claim 2 is characterized in that: The pre-stressing assembly includes a roller mounting block and a fixed block, the roller mounting block is movably connected to the fixed block via a guide rod, a pre-stressing spring is provided on the guide rod, the pre-stressing spring is located between the roller mounting block and the fixed block, and the rolling wheel is installed at the bottom of the roller mounting block.

4. The negative electrode welding pressing claw mechanism for steel shell battery electrode sheet according to claim 1, characterized in that: The bottom plate is fixed on a bracket, and the bracket is controlled to move by a servo module.

5. The negative electrode welding pressing claw mechanism for steel shell battery electrode sheet according to claim 1, characterized in that: The three-axis drive includes an X-axis drive, a Y-axis drive and a Z-axis drive. The X-axis drive controls the movement of the Y-axis drive, the Y-axis drive controls the movement of the Z-axis drive, and the Z-axis drive can control the up and down movement of the pole piece pressing claw.

6. The negative electrode welding pressing claw mechanism for steel shell battery electrode sheet according to claim 5, characterized in that: The Z-axis drive includes a cylinder, which is fixed on a cylinder mounting plate. A guide slider is provided on the side of the cylinder. A connecting block is provided at the piston rod end of the cylinder. The connecting block is connected to the guide slider. A buffer block mounting plate is provided on one side of the guide slider. A step is provided on the buffer block mounting plate. A guide rod mounting block is provided on the step. A buffer guide rod is provided on the guide rod mounting block. A pressure rod mounting plate is connected to the bottom of the buffer guide rod. A spring is sleeved on the buffer guide rod. The pole piece pressure claw is fixed on the pressure rod mounting plate.

7. The negative electrode welding pressing claw mechanism for steel shell battery electrode sheet according to claim 1, characterized in that: A notch is provided at the end of the pole piece pressing claw.

8. The negative electrode welding pressing claw mechanism for steel shell battery electrode sheet according to claim 5, characterized in that: The X-axis drive comprises an X-axis servo motor, an X-axis transmission screw and an X-axis sliding plate, wherein the X-axis servo motor is connected to the X-axis transmission screw via a coupling, the X-axis transmission screw is connected to the X-axis sliding plate via a screw nut, and the Y-axis drive is arranged on the X-axis sliding plate; The Y-axis drive includes a Y-axis servo motor, a Y-axis transmission screw and a Y-axis sliding plate. The Y-axis servo motor is connected to the Y-axis transmission screw through a coupling, and the Y-axis transmission screw is connected to the Y-axis sliding plate through a screw nut. The Z-axis drive is arranged on the Y-axis sliding plate.

9. The negative electrode welding pressing claw mechanism for steel shell battery electrode sheet according to claim 4, characterized in that: The servo module includes a profile bracket, a servo motor and a transmission screw. The output shaft of the servo motor is connected to the transmission screw through a coupling. The servo motor and the transmission screw are both arranged on the profile bracket. The profile bracket is also provided with a linear slide rail. The bottom of the bracket is connected to the linear slide rail through a slider, and the transmission screw drives the bracket to move through a screw nut.

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