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CN-122007592-A - Welding processing device for battery copper bars

CN122007592ACN 122007592 ACN122007592 ACN 122007592ACN-122007592-A

Abstract

The invention discloses a welding processing device for a battery copper bar, which relates to the technical field of copper bar processing and comprises a machine table, wherein a welding host machine for performing diffusion welding on copper foil is arranged on one side of the machine table, a welding main body comprises a heating mechanism and a pressurizing mechanism, the heating mechanism comprises an upper pressure head module and a lower pressure head module which are oppositely arranged, the pressurizing mechanism comprises a pressurizing cylinder body, a driving end of the pressurizing cylinder body is fixedly connected with the upper pressure head module, a first groove is formed on one side of the upper pressure head module, a second groove is formed on one side of the lower pressure head module, and a feeding mechanism is arranged on one side of the machine table and used for orderly stacking multiple layers of copper foils according to a preset number and sequentially conveying the copper foils between the upper pressure head module and the lower pressure head module.

Inventors

  • Su Yanshuai
  • CHEN YONG

Assignees

  • 安徽国壹科技有限公司

Dates

Publication Date
20260512
Application Date
20260305

Claims (10)

  1. 1. The welding processing device for the battery copper bar comprises a machine table (1), wherein a welding host machine for performing diffusion welding on a copper foil (5) is arranged on one side of the machine table (1); The welding device is characterized in that the welding main body comprises a heating mechanism and a pressurizing mechanism; the heating mechanism comprises an upper pressure head module (201) and a lower pressure head module (3) which are oppositely arranged, the pressurizing mechanism comprises a pressurizing cylinder body (2), and the driving end of the pressurizing cylinder body (2) is fixedly connected with the upper pressure head module (201); The upper pressure head module (201) is provided with a first groove (202) at one side close to the lower pressure head module (3), and the lower pressure head module (3) is provided with a second groove (301) at one side close to the upper pressure head module (201); The feeding mechanism is arranged on one side of the machine table (1) and used for orderly stacking the multi-layer copper foils (5) according to the preset quantity and sequentially conveying the multi-layer copper foils between the upper pressure head module (201) and the lower pressure head module (3).
  2. 2. The welding processing device of the battery copper bar according to claim 1, wherein the feeding mechanism comprises a storage bin for storing a plurality of layers of copper foils (5), and a material taking assembly is arranged on the storage bin and used for moving the copper foils (5) which are subjected to preset material conveying from the storage bin; And the feeding assembly is arranged between the material taking assembly and the welding host machine and used for conveying the copper foil (5) to a welding station of the welding host machine after being stacked in order.
  3. 3. The welding processing device of the battery copper bar according to claim 2, wherein the machine table (1) is fixed on the bottom plate (104), the bottom plate (104) is fixedly provided with the bottom frame (103) on one side, the storage bin comprises a limiting frame body (501) fixed on the bottom frame (103), a plurality of groups of limiting plates (502) are fixedly arranged on each side edge of the limiting frame body (501) in a rectangular array, and the limiting plates (502) are enclosed to form the storage bin for embedding the copper foil (5).
  4. 4. A device for welding and processing a copper bar of a battery according to claim 3, wherein the material taking assembly comprises a bearing plate (506) arranged in the storage bin and used for bearing a copper foil (5) embedded in the storage bin, at least one group of guide rods (503) are fixedly arranged on the bottom frame (103), guide seats (504) fixedly connected with the bearing plate (506) are sleeved on the guide rods (503) in a sliding manner, and telescopic springs (505) are arranged on the guide rods (503).
  5. 5. A welding processing device for a copper bar of a battery as claimed in claim 3, wherein the material taking assembly comprises a receiving plate (507) fixedly arranged between the material bin and the lower pressure head module (3), and the upper surface of the receiving plate (507) is respectively flush with the top of the limiting plate (502) and the upper surface of the lower pressure head module (3); the material taking assembly further comprises a pushing plate (401) arranged on the storage bin, the pushing plate (401) is fixedly connected with the driving end of the horizontal electric cylinder (4), and the horizontal electric cylinder (4) is fixed on the underframe (103) through an L-shaped bracket.
  6. 6. The welding processing device for the battery copper bar according to claim 5, wherein a support plate (402) is fixedly arranged on one side, close to a welding host, of the push plate (401), an adjusting screw (405) is spirally arranged in the support plate (402), a pressing plate (406) is rotatably arranged on one end, close to the underframe (103), of the adjusting screw (405), and an adjusting handle is fixedly arranged on the other end of the adjusting screw.
  7. 7. The welding processing device for the battery copper bar according to claim 6, wherein a baffle frame (403) is fixedly arranged at one end of the push plate (401) far away from the welding host machine.
  8. 8. The welding processing device for the battery copper bar according to claim 5, wherein clamping plates (407) are symmetrically arranged at two ends of the pushing plate (401), and the clamping plates (407) at two sides are connected with an adjusting part for driving the clamping plates to be close to each other or to be far away from each other.
  9. 9. The welding processing device of the battery copper bar according to claim 8, wherein the adjusting part comprises L-shaped positioning frames (404) symmetrically fixed on two sides of the push plate (401), a first adjusting rod (608) is inserted into the tail end of the L-shaped positioning frames (404) in a sliding mode, the clamping plate (407) is fixedly connected with one end of the first adjusting rod (608), the other end of the clamping plate is rotatably provided with a first guide wheel (606), and a first spring (609) is arranged on the first adjusting rod (608); The adjusting part further comprises first linear guide frames (602) symmetrically arranged on two sides of the lower pressure head module (3), wherein first inclined guide frames (603) are fixedly arranged on one ends, close to the storage bin, of the first linear guide frames (602) on two sides, and the first inclined guide frames (603) on two sides incline towards directions away from each other.
  10. 10. The welding processing device of the battery copper bar according to claim 9, wherein a blanking plate (612) is further arranged on one side, close to the welding host, of the push plate (401), the blanking plate (612) is fixed to the bottom of the push frame (604), second adjusting rods (610) are fixedly arranged on the L-shaped positioning frames (404) on two sides respectively, lifting plates (605) fixedly connected with the push frame (604) are sleeved on the second adjusting rods (610) in a sliding mode, and second springs (611) are further arranged on the second adjusting rods (610); The two ends of the pushing frame (604) are respectively and rotatably provided with second guide wheels (607), two sides of the lower pressure head module (3) are respectively and symmetrically provided with second linear guide frames (6), the second linear guide frames (6) are fixed on the first linear guide frames (602) through connecting frames, the second inclined guide frames (601) are fixedly arranged at one ends of the two sides of the second linear guide frames (6) close to the welding host, and the two sides of the second inclined guide frames (601) are respectively inclined downwards.

Description

Welding processing device for battery copper bars Technical Field The invention relates to the technical field of copper bar processing, in particular to a welding processing device for a battery copper bar. Background The battery copper bar, also called soft connection or bus bar, is a key conductive component in a power battery system of a new energy automobile, is generally formed by laminating a plurality of layers of copper foils, and plays roles of conductive connection, shock absorption and buffering and compensation for thermal expansion and cold contraction by utilizing a flexible structure of the battery copper bar. The polymer diffusion welding is used as a solid-state connecting technology, and has become a main process of multi-layer copper foil lamination welding due to the advantages of high strength of welding joints, good conductivity, no splashing and the like. According to the process, the interface atoms of the stacked copper foils are mutually diffused through high temperature and high pressure, so that the fixed connection of the lap joint surfaces at the two ends of the copper bars is realized, and the interlayer free state is kept in the middle area, so that the flexible buffer function is kept. However, the current operation mode of welding the copper bars of the battery by using the polymer diffusion welding machine has obvious defects in terms of operation convenience and production efficiency, and is mainly characterized in the following two aspects: Under the prior art condition, an operator needs to hold a clamp to send one end of the orderly stacked multi-layer copper foil to a heating module of the diffusion welding machine for welding, after one end is welded, the copper bar needs to be taken out and is cooled, and then the other end is sent to the welding machine for welding after clamping again. The step-by-step operation mode of welding one end first, cooling and welding the other end second enables the welding process of a single copper bar to be split into a plurality of discrete procedures, and operators need to repeatedly clamp and wait, so that the complexity of manual operation is increased, and the improvement of production efficiency is severely restricted. Before welding, operators need to manually take out a corresponding number of copper foil sheets according to the technological requirements and stack and pile up the copper foil sheets, so that two ends of the copper foil sheets are aligned to form a regular laminated structure. Because the copper foil is soft in texture and thinner in thickness, the copper foil is misplaced and uneven due to finger touch or improper operation in the manual stacking process, so that the welding quality is affected, and even the product is scrapped. Meanwhile, the mode of manual material taking and stacking is difficult to realize standardized operation, so that the labor intensity is high, the stacking precision is highly dependent on the proficiency of operators, and the control of batch stability is not facilitated. Disclosure of Invention The invention provides a welding processing device for a battery copper bar, which can solve the following problems in the prior art: 1) The two ends of the copper bar are required to be welded in a divided mode, the operation flow is complex, 2) stacking of the copper bar depends on manual work, and stacking uniformity is difficult to guarantee. The welding processing device for the battery copper bar comprises a machine table, wherein a welding host machine for performing diffusion welding on copper foil is arranged on one side of the machine table; The welding main body comprises a heating mechanism and a pressurizing mechanism; The heating mechanism comprises an upper pressure head module and a lower pressure head module which are oppositely arranged, the pressurizing mechanism comprises a pressurizing cylinder body, and the driving end of the pressurizing cylinder body is fixedly connected with the upper pressure head module; The upper pressure head module is provided with a first groove at one side close to the lower pressure head module, and the lower pressure head module is provided with a second groove at one side close to the upper pressure head module; the copper foil stacking machine further comprises a feeding mechanism, wherein the feeding mechanism is arranged on one side of the machine table and used for stacking multiple layers of copper foils according to preset quantity and sequentially conveying the copper foils between the upper pressure head module and the lower pressure head module. Preferably, the feeding mechanism comprises a bin for storing the multi-layer copper foil, and a material taking assembly is arranged on the bin and used for moving the copper foil with preset material conveying from the bin; And the feeding assembly is arranged between the material taking assembly and the welding host machine and used for conveying the copper foil to a welding station of