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CN-224209394-U - Battery case bottom welding set

CN224209394UCN 224209394 UCN224209394 UCN 224209394UCN-224209394-U

Abstract

The utility model provides a battery shell bottom welding device which comprises a conveying belt, a rotating mechanism, a lifting mechanism and a welding mechanism, wherein the conveying belt is provided with a groove used for accommodating and conveying a battery at the bottom to be welded, the rotating mechanism is used for rotating the battery at the bottom to be welded for at least one circle, the lifting mechanism is arranged on one side of the conveying belt, the welding mechanism is arranged on the lifting mechanism, and the welding end of the welding mechanism can be lifted and stretched into the battery to be abutted with the bottom and circumferentially welded with the bottom of the battery along with the rotation of the battery. The device has compact structure, all parts work cooperatively, the bottom of the battery is welded, the labor is saved, and the welding efficiency is improved.

Inventors

  • WU BAICAI

Assignees

  • 欧特能源(江门)有限公司

Dates

Publication Date
20260508
Application Date
20250627

Claims (10)

  1. 1. A battery case bottom welding apparatus, the apparatus comprising: A conveyor belt (100) provided with grooves for receiving and conveying batteries of the bottom to be welded; a rotation mechanism (200) for rotating the battery at the bottom to be welded at least one circle; a lifting mechanism (300) arranged on one side of the conveyor belt (100); The welding mechanism (400) is arranged on the lifting mechanism (300), and the welding end of the welding mechanism (400) can lift and stretch into the battery to be in contact with the bottom, so that the bottom and the battery shell of the battery are welded along with the rotation of the battery in the circumferential direction.
  2. 2. The device according to claim 1, characterized in that the rotating mechanism (200) is arranged at a welding position of the conveyor belt (100), the welding mechanism (400) is arranged above the welding position, and the welding end is directed towards the welding position; When the battery at the bottom to be welded moves to a welding position, the rotating mechanism (200) clamps the battery, the welding end stretches into the welding position inside the battery, the rotating mechanism (200) rotates the battery, and the welding end circumferentially welds the bottom of the battery and the battery shell.
  3. 3. The device according to claim 1, wherein the conveyor belt (100) is provided with a notch (110) on each of opposite sides of a central region thereof, and wherein the rotation mechanism (200) comprises: The driving rotating wheel (210) is arranged at a notch (110) at one side of the groove of the transmission belt (100); the driven rotating wheel (220) is telescopically arranged at the notch (110) at the other side of the groove of the transmission belt (100); When the battery at the bottom to be welded moves between the driving rotating wheel and the driven rotating wheel (220), the driven rotating wheel (220) stretches out and is respectively abutted against the two sides of the battery with the driving rotating wheel (210), so that the battery rotates along with the rotation of the rotating wheel.
  4. 4. A device according to claim 3, wherein the driven wheel (220) is connected to a drive motor for driving the driven wheel (220) into and out of the recess; The driven rotating wheel (220) comprises two sub rotating wheels (221) which are arranged at intervals, and the middle line of the two sub rotating wheels (221) is opposite to the center of the main rotating wheel.
  5. 5. The device according to any one of claims 1 to 4, characterized in that the conveyor belt (100) comprises: A welding section (120), the welding section (120) being provided with the rotating mechanism (200) and the welding mechanism (400) for welding a battery at that position; An input section (130) for receiving and delivering the battery to be welded at the bottom to the welding section (120); And the output section (140) is used for receiving the battery welded by the welding section (120) and outputting the battery.
  6. 6. The apparatus of claim 5, wherein the conveyor belt (100) further comprises a transfer section disposed at the input section (130) adjacent to the welding section (120) for sequentially conveying the batteries at the bottom to be welded to the welding section (120).
  7. 7. The apparatus of claim 6, wherein the staging section comprises: The connecting section (131) is arranged on the input section (130) and divides the input section (130) into a first input section and a second input section, and the connecting section (131) is vertically communicated with the first input section and the second input section respectively so as to enable the two input sections to generate parallel dislocation; The first driving pushing piece (132) is arranged at the inlet of the connecting section (131), the pushing direction is perpendicular to the first input section, and the first driving pushing piece is used for pushing the battery at the bottom to be welded, which is conveyed by the first input section, to the outlet of the connecting section (131); And the second driving pushing piece (133) is arranged at the outlet of the connecting section and is used for pushing the battery at the bottom to be welded at the outlet of the connecting section (131) into the second input section.
  8. 8. The device according to any one of claims 1 to 4, characterized in that the lifting mechanism (300) comprises a bracket (310) provided with a vertical sliding rail (311); a slider (320) slidably disposed on the slide rail; the linear driving mechanism (330) is arranged on the bracket (310), and the telescopic end of the linear driving mechanism is connected with the sliding block (320); And an elastic compression mechanism (340), one side surface of which is arranged on the sliding block (320), and the other side surface of which is elastically connected with the welding mechanism (400).
  9. 9. The device according to claim 8, wherein the elastic compression mechanism (340) comprises: A base (341) with one side surface arranged on the sliding block (320), the other side surface provided with a guide rail, the top of the base (341) is provided with a lug which faces the conveying belt (100), and the guide rail is used for being connected with a sliding groove of the welding mechanism body (410) in a sliding way; an elastic piece (342) with two ends respectively connected with the lug and the welding mechanism (400); When the battery at the bottom to be welded moves to the rotating mechanism (200), the rotating mechanism (200) clamps the battery, the linear driving mechanism (330) drives the sliding block (320) to move downwards, the welding mechanism (400) moves inwards along with the battery, the end part of the welding needle (420) is abutted with the welding position at the bottom of the battery, the rotating mechanism (200) rotates circumferentially with the battery, the welding needle (420) performs circumferential welding, and the end part of the welding needle (420) is abutted with the bottom of the battery under the pressure of the elastic piece (342) to finish welding.
  10. 10. The apparatus according to any one of claims 1 to 4, further comprising: the pushing mechanism is arranged at the inlet of the conveying belt (100), and is used for pushing the battery to move to the welding position after the battery at the bottom to be welded enters the conveying belt (100); Or alternatively The apparatus further comprises: And the feeding mechanism is used for sequentially conveying the batteries to the conveying belt (100) so as to push the batteries to move to the welding position.

Description

Battery case bottom welding set Technical Field The embodiment of the disclosure relates to the technical field of welding of power batteries, in particular to a battery shell bottom welding device. Background At present, a welding mode of welding a shell bottom plate of a lithium battery is not only manual handheld welding gun welding, but also some welding equipment, such as welding equipment for a shell bottom plate of the lithium battery disclosed in China patent publication No. CN114346567A, which integrates the functions of welding, polishing and marking, but each time a workpiece is processed, the battery is placed on a placing plate by manual material changing or mechanical arm feeding, and the welding equipment is suitable for small and medium-scale production, and has the advantages of complex structure, large volume and large occupied area. Disclosure of utility model It is an aim of embodiments of the present disclosure to provide a battery case bottom welding device, which solves the aforementioned problems in the prior art. In order to achieve the above objective, the technical solution adopted in the embodiments of the present disclosure is as follows: The embodiment of the disclosure provides a battery shell bottom welding device, which comprises a transmission belt, a rotating mechanism, a lifting mechanism and a welding mechanism, wherein the transmission belt is provided with a groove for accommodating and transmitting a battery at the bottom to be welded, the rotating mechanism is used for rotating the battery at the bottom to be welded for at least one circle, the lifting mechanism is arranged on one side of the transmission belt, the welding mechanism is arranged on the lifting mechanism, and the welding end of the welding mechanism can be lifted and stretched into the battery to be abutted with the bottom so as to circumferentially weld the bottom of the battery and a battery shell along with the rotation of the battery. When the battery at the bottom to be welded moves to the welding position, the rotating mechanism clamps the battery, the welding end stretches into the welding position inside the battery, the rotating mechanism rotates the battery, and the welding end circumferentially welds the bottom of the battery and the battery shell. Optionally, openings are respectively formed on two opposite sides of the central area of the transmission belt; the rotating mechanism comprises a driving rotating wheel, a driven rotating wheel and a driven rotating wheel, wherein the driving rotating wheel is arranged at a notch on one side of a groove of the transmission belt, the driven rotating wheel is telescopically arranged at a notch on the other side of the groove of the transmission belt, and when a battery at the bottom to be welded moves between the driving rotating wheel and the driven rotating wheel, the driven rotating wheel stretches out and is respectively abutted with the two sides of the battery to enable the battery to rotate along with the rotation of the rotating wheel. Optionally, the driven rotating wheel is connected with a driving motor to drive the driven rotating wheel to move into and out of the groove, and the driven rotating wheel comprises two sub rotating wheels which are arranged at intervals, and the middle line of the two sub rotating wheels is opposite to the center of the main rotating wheel. Optionally, the conveying belt comprises a welding section, an input section and an output section, wherein the welding section is provided with the rotating mechanism and the welding mechanism and is used for welding the battery positioned at the position, the input section is used for receiving and conveying the battery at the bottom to be welded to the welding section, and the output section is used for receiving and outputting the battery welded by the welding section. Optionally, the transmission belt further comprises a middle rotating section arranged at the position, close to the welding section, of the input section and used for sequentially conveying the batteries at the bottom to be welded to the welding section. The transfer section comprises a connecting section, a first driving pushing piece and a second driving pushing piece, wherein the connecting section is arranged on the input section and divides the input section into a first input section and a second input section, the connecting section is vertically communicated with the first input section and the second input section respectively so that the two input sections are in parallel dislocation, the first driving pushing piece is arranged at an inlet of the connecting section, the pushing direction of the first driving pushing piece is vertical to the first input section and is used for pushing a battery at the bottom to be welded, which is conveyed by the first input section, to an outlet of the connecting section, and the second driving pushing piece is arranged at an outlet of the connecting end an