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KR-20260062532-A - Battery terminal processing mold for electric vehicle and processing method using the same

KR20260062532AKR 20260062532 AKR20260062532 AKR 20260062532AKR-20260062532-A

Abstract

The present invention relates to a mold for processing battery terminals for electric vehicles, and more specifically, to a mold for sequentially processing grounding grooves and grounding wings of battery terminals, which are relatively small materials, using two molds, and configuring the punch part and the mold part for forming the grounding grooves and grounding wings to rotate and form them, thereby improving the flatness and strength of the grounding grooves and grounding wings, as well as ensuring the circular shape of the grounding grooves and grounding wings to prevent short circuits when welding wires to the terminals and improving weldability. According to the present invention, the processing defect rate of battery terminals is minimized, thereby increasing productivity. In addition, the punch part and the mold part for forming the grounding groove of the battery terminal are configured to rotate in opposite directions to form the groove, thereby improving the flatness and strength of the grounding groove, as well as ensuring a circular shape of the grounding groove, which prevents short circuits when welding wires to the terminal and improves weldability. In addition, continuous processing shortens processing time, enabling mass production and resulting in effects such as lowering production unit costs.

Inventors

  • 최병철
  • 최정환
  • 최빛

Assignees

  • 최병철
  • 최정환
  • 최빛

Dates

Publication Date
20260507
Application Date
20241029

Claims (9)

  1. In a mold for processing battery terminals for electric vehicles; A mold base (11) having a first mold part (100) and a second mold part (200) formed thereon, to which a cylindrical material (1) is fixed; The punch base (21) comprises a first punch unit (300) that presses a material (1) fixed to the first mold unit (100) to process a grounding groove (1a), a second punch unit (400) that pulls out the processed material (1) and moves it to the second mold unit (200) to settle on the second mold unit (200), and a third punch unit (500) that presses the material (1) settled on the second mold unit (200) to process a grounding wing (1b). The first mold part (100) above comprises a cylindrical mold case (130) having a first assembly part (131) formed on the inside; A first mold (110) that is inserted into the first assembly part (131) of the above mold case (130) and has a processing hole (111) formed through it in the center; A mold pin support (150) that is assembled to the first assembly part (131) including a first spring (160) facing the first mold (110), and has a through hole (151) formed through the center; A first mold pin (120) disposed on the other side of the mold pin support (150) and penetrating the through hole (151) and the first spring (160) to insert the first mold pressure member (122) into the processing hole (111); It is formed by a mold support (140) that is fixed to the tip of the first assembly part (131) and supports a mold pin support (150) and a first mold pin (120); The above first mold pin (120) is characterized by having a grounding projection processing groove (125) formed on the front end of the first mold pressing member (122), and an air discharge hole (123) connected from the center of the grounding projection processing groove (125) to the side of the first mold pressing member (122), in a mold for processing battery terminals for electric vehicles.
  2. In Article 1, The above first mold part (100) is, A mold case (130) is provided with a head fitting hole (132) having a diameter smaller than the diameter of the first assembly part (131), and a first cam hole (134) having a curved diagonal shape is formed on the side of the head fitting hole (132). The first mold (110) inserted into the first assembly part (131) has a first head (113) inserted into the head fitting hole (132) formed to protrude with a step, and a first guide pin (135) that penetrates the first cam hole (134) is assembled on the outer circumference of the first head (113). A battery terminal processing mold for an electric vehicle, characterized in that when the first mold (110) moves forward and backward, the first guide pin (135) is configured to rotate and move the first mold (110) along the first cam hole (134).
  3. In Article 1, The above second mold part (200) is, A second assembly part (212) having a step supporting one end of a second pinhole (211) and a second spring (220) that is continuously formed in the center, and a second cam hole (214) having a curved diagonal shape on the outer surface that is penetrated in the direction of the second pinhole (211), and a second mold (210); A second mold pin (230) that is elastically supported by a second spring (220) provided in the second assembly part (212) and into which a second mold pressure member (232) is inserted into the second pin hole (211), and It is configured with a second guide pin (215) assembled to the second mold pin (230) through the second cam hole (214), so that when the second mold pin (230) moves, the second guide pin (215) rotates along the second cam hole (214). A grounding wing processing groove (211b) is formed at the tip of the second pinhole (211), and A battery terminal processing mold for an electric vehicle, characterized in that the front end of the second mold pressing member (232) has a grounding protrusion pressing surface (235) that presses the grounding molding member (1d) and a grounding groove molding member (237) with an annular protrusion (233) protruding from the outer circumference of the grounding protrusion pressing surface (235).
  4. In Article 1, The above first punch section (300) is, A first punch case (310) having a first punch guide hole (311) formed therein; A first punch pin (330) inserted into the first punch guide hole (311) and having a central pin through hole (331) formed in the center; A pin pipe (320) that contacts the first punch pin (330) inserted into the first punch guide hole (311) and has a first pin through hole (321) formed in the center; A central punch pin (340) that is assembled through the first pin through hole (321) and the central pin through hole (331); A battery terminal processing mold for an electric vehicle, characterized by comprising a first punch pin support member (360) that is inserted into the first punch guide hole (311) and elastically supports the central punch pin (340) by the first elastic spring (350).
  5. In Article 1, The above second punch section (400) is, A second punch case (410) having a second punch guide hole (411) formed through it; A second punch pin (420) that is assembled through the second punch guide hole (411) above; A battery terminal processing mold for an electric vehicle, characterized by being composed of a second punch pin support (440) fitted with a second elastic spring (430) that is inserted into the second punch guide hole (411) and elastically supports the second punch case (410).
  6. In Paragraph 5, The above second punch pin (420) is, A battery terminal processing mold for an electric vehicle, characterized in that a compression processing groove (425) having a concave curved shape is formed at the tip of the second punch compression groove (422), and an air hole (423) is formed from the center of the compression processing groove (425) to the side of the second punch compression groove (422).
  7. In Article 1, The above third punch section (500) is, A third punch case (510) having a third punch guide hole (511) formed through it and a third elastic spring (540) provided inside; A third punch pin (520) that is assembled through the third punch guide hole (511) above; A battery terminal processing mold for an electric vehicle, characterized by comprising a third punch pin support (530) that is inserted into the third punch guide hole (511) and presses the third punch pin (520).
  8. In Article 7, The above third punch section (500) is, A third punch case (510) is provided with a punch fitting hole (515) having a diameter smaller than the diameter of the third punch guide hole (511), and a third cam hole (516) having a curved diagonal shape is formed on the side of the punch fitting hole (515). The third punch pin (520) inserted into the third punch guide hole (511) is formed such that the third punch pressure hole (522) is formed to protrude with a stepped edge so as to be assembled into the punch fitting hole (515), and the third guide pin (517) passing through the third cam hole (516) is assembled to the outer circumference of the third punch pressure hole (522). A battery terminal processing mold for an electric vehicle, characterized in that, when the third punch part (500) moves forward, the end of the third punch pin (520) is inserted into the ground wing processing groove (211b) of the second mold part (200) so that the tip of the third punch pin (520) comes into contact with the material (1), and the third guide pin (517) provided on the third punch pin (520) moves along the third cam hole (516) to rotate the third punch pin (520) and move forward.
  9. A material cutting step (S10) for cutting a round bar; A grounding groove processing step (S20) of fixing the cut material (1) to the first mold part (100) of claim 1 and pressing with the first punch part (300) to form a grounding molding groove (1c); A material extraction step (S30) of applying a second punch part (400) to the first mold part (100) to extract a material (1) fixed to the first mold part (100) from the first mold part (100); A material placement step (S40) in which the material (1) drawn out and fixed to the second punch part (400) is placed in the second mold part (200); A method for manufacturing a battery terminal processing mold for an electric vehicle, characterized by including a grounding wing processing step (500) in which the second mold part (200) is pressed with a third punch part (500) and the second mold pin (230) and the third punch pin (517) are rotated in different directions to form a grounding wing (1b) and a grounding groove (1c) of a material (1).

Description

Battery terminal processing mold for electric vehicle and processing method using the same The present invention relates to a mold for processing battery terminals for electric vehicles and a method for manufacturing the same. More specifically, the invention is configured such that a grounding groove and a grounding wing of a battery terminal, which is a relatively small material, are processed sequentially by two molds, and a punch part and a mold part for forming the grounding groove and the grounding wing are rotated to form them, thereby improving the flatness and strength of the grounding groove and the grounding wing, as well as ensuring a circular shape of the grounding groove and the grounding wing, so as to prevent short circuits when welding wires to the terminal and improve weldability. In aluminum processing, there is a plastic deformation process in which strong compressive force is applied to the material to induce deformation, allowing the product to be formed according to the shape inside the mold. The above plastic deformation process is suitable for processing battery terminals for electric vehicles because, compared to casting, it offers dimensional accuracy and enables the production of uniform products through mass production. Generally, as an example of press processing, a lower punch is applied to a single mold to process into a desired shape, as described in Public Patent No. 10-2004-0020264, 'Die for processing a body panel'. In the case of such plastic deformation, it was possible to process into the desired shape in one go, but there was a problem that continuous processing for mutually different processing methods on both sides, such as grooving and compression, was difficult. Accordingly, prior art regarding a continuous press processing system using an individual part transfer device has been disclosed, such as Registered Patent No. 10-2026588, 'Continuous press processing system using an individual part transfer device'. The configuration of the prior art includes a plurality of molds having an upper mold and a lower mold, arranged at mutually certain intervals along a single process line to sequentially press-process the corresponding parts; a support body for supporting the lower side of each lower mold of each mold; a press unit for press-processing an intermediate product positioned by raising each upper mold of each mold to the corresponding lower mold; a supply unit for supplying a metal plate for press-processing to the arranged molds; a main discharge unit for discharging a product press-processed through the arranged molds; a part transfer device for moving the intermediate product of each mold to another mold arranged in the processing direction; and a control unit for controlling the press unit, the supply unit, the main discharge unit, and the part transfer device. According to the prior art described above, the part can be press-processed continuously in stages, which shortens processing time and reduces costs, thereby improving work efficiency. However, conventional continuous press processing systems arranged in a single row had the problem of a high defect rate because the presses were large and it was difficult to move relatively small parts to the correct position. FIG. 1 is a schematic processing flowchart for a method of manufacturing a battery terminal processing mold for an electric vehicle according to the present invention. FIG. 2 is a schematic installation diagram of a battery terminal processing mold for an electric vehicle according to the present invention. FIG. 3 is an exploded cross-sectional view of the first mold part in a battery terminal processing mold for an electric vehicle according to the present invention. FIG. 4 is an exploded cross-sectional view of the first punch portion in a battery terminal processing mold for an electric vehicle according to the present invention. FIG. 5 is a state diagram of the grounding groove processing step in a battery terminal processing mold for an electric vehicle according to the present invention. FIG. 6 is an exploded perspective view of the mold case of the first mold part and the first mold according to the present invention. FIG. 7 is an exploded cross-sectional view of the second punch portion in a battery terminal processing mold for an electric vehicle according to the present invention. FIG. 8 is a state diagram of the material extraction step in a battery terminal processing mold for an electric vehicle according to the present invention. FIG. 9 is a state diagram of the material seating step in a battery terminal processing mold for an electric vehicle according to the present invention. FIG. 10 is an exploded cross-sectional view of the second mold part in a battery terminal processing mold for an electric vehicle according to the present invention. FIG. 11 is an exploded cross-sectional view of the third punch portion in a battery terminal processing mold for an electric vehicle according