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CN-121988661-A - Side punching die for workpiece machining

CN121988661ACN 121988661 ACN121988661 ACN 121988661ACN-121988661-A

Abstract

The invention relates to the technical field of punching dies and discloses a side punching die for workpiece machining, which comprises a lower die and an upper die, wherein a limiting shaft for clamping and placing an end cap is arranged at the top of the lower die, two elastic loading parts are symmetrically arranged on the lower die, punching assemblies are arranged on adjacent sides of the two elastic loading parts, the limiting shaft is arranged between the two punching assemblies, the punching assemblies comprise loading columns, the loading columns are arranged at one ends of the elastic loading parts, which are close to the limiting shaft, end columns are detachably arranged at one ends of the loading columns, which are close to the limiting shaft, and spike punching parts and roller grinding parts are respectively arranged at two ends of the end columns. According to the invention, the elastic loading piece drives the loading column to realize synchronous punching on two sides of the end cap, so that hole site symmetry is ensured, the spike part is adopted to pre-break the shell and the stepped punching rod structure, burrs are reduced, reducing machining is supported, the end column is disassembled and commutated, and the punching and roller milling procedures are switched on the same die, so that punching and polishing integration is realized, and the machining efficiency and the product quality are improved.

Inventors

  • YAO JIAN
  • XU CHUN
  • WEN JUNWEI
  • GUO JIASHENG

Assignees

  • 安庆力翔新能源科技有限责任公司

Dates

Publication Date
20260508
Application Date
20260320

Claims (10)

  1. 1. The side punching die for processing the workpiece is characterized by comprising a lower die (1) and an upper die (2); a limiting shaft (101) for clamping and placing the end caps is arranged at the top of the lower die (1), two elastic loading pieces (3) are symmetrically arranged on the lower die (1), punching assemblies (4) are arranged on adjacent sides of the two elastic loading pieces (3), and the limiting shaft (101) is arranged between the two punching assemblies (4); The punching assembly (4) comprises a loading column (41), the loading column (41) is arranged at one end, close to the limiting shaft (101), of the elastic loading piece (3), an end column (42) is detachably arranged at one end, close to the limiting shaft (101), of the loading column (41), and a spike punching piece (43) and a roller grinding piece (44) are respectively arranged at two ends of the end column (42); when the upper die (2) moves downwards, the two elastic loading pieces (3) are pushed to drive the two loading posts (41) to be close to each other, and the spike punching pieces (43) on the two end posts (42) punch holes on two sides of the end cap respectively.
  2. 2. The side punching die for workpiece machining according to claim 1, wherein a first thread head (421) is fixed at one end of the end post (42) close to the limiting shaft (101), a second thread head (422) is fixed at one end of the end post far away from the limiting shaft (101), a thread channel is formed in the loading post (41), the second thread head (422) is in threaded connection with the thread channel, the roller grinding piece (44) is mounted at the end part of the second thread head (422) and is arranged in the thread channel, and the spike punching piece (43) is detachably mounted at the end part of the first thread head (421).
  3. 3. The side punching die for workpiece machining according to claim 2, wherein the spike punching member (43) comprises a first punching rod (431) and a spike part (432), a first threaded hole is formed in the first threaded head (421), one end of the first punching rod (431) is in threaded connection with the first threaded hole, and the spike part (432) facing the limiting shaft (101) is detachably connected to the other end of the first punching rod (431).
  4. 4. A side punching die for workpiece processing according to claim 3, characterized in that the spike part (432) comprises a second punching rod (4321), a second threaded hole is formed in the first punching rod (431), one end of the first punching rod (431) is in threaded connection with the second threaded hole, the other end of the first punching rod is fixedly provided with a spike head (4322) facing the limiting shaft (101), and the diameter of the second punching rod (4321) is smaller than that of the first punching rod (431).
  5. 5. The side punching die for workpiece processing according to claim 4, characterized in that the roller grinding piece (44) comprises a first grinding roller (441), the end of the end post (42) far away from the limiting shaft (101) is provided with the first grinding roller (441) and a driving part for driving the end post to rotate, the first grinding roller (441) is arranged in a threaded channel in the loading post (41), a second grinding roller (442) is fixed at the end of the first grinding roller (441) far away from the end post (42), the size of the first grinding roller (441) is matched with the size of the first punching rod (431), and the size of the second grinding roller (442) is matched with the size of the spike (4322).
  6. 6. The side punching die for workpiece processing according to claim 5, wherein the driving part is a motor (443), a cavity is formed in the end post (42), the motor (443) is installed in the cavity, an output end of the motor (443) rotates through the second thread head (422), and one end of the first grinding roller (441) away from the second grinding roller (442) is connected with an output end of the motor (443).
  7. 7. The side punching die for workpiece machining according to claim 1, characterized in that the elastic loading piece (3) comprises loading blocks (31), the loading blocks (31) are fixed on two sides of the top of the lower die (1), movable columns (32) which are transversely arranged are connected to the loading blocks (31) in a sliding and penetrating mode, two loading columns (41) are respectively fixed on one ends, close to the two movable columns (32), of the movable columns (32), an elastic portion (33) connected with the loading blocks (31) is installed on one end, far away from the loading columns (41), of the movable columns (32), a stress block (34) is fixedly sleeved on the movable columns (32), a first inclined surface is formed on the top surface of the stress block (34), pushing blocks (21) are fixed on two sides of the upper die (2), the two pushing blocks (21) are respectively located above the two stress blocks (34), and a second inclined surface matched with the first inclined surface is formed on the bottom of each pushing block (21).
  8. 8. The side punching die for workpiece processing according to claim 7, wherein the elastic portion (33) comprises a second spring (331) and an end block (332), the end of the movable column (32) far away from the limiting shaft (101) is fixed with the end block (332), the movable column (32) is sleeved with the second spring (331) located between the loading block (31) and the end block (332), and two ends of the second spring (331) are connected with the loading block (31) and the end block (332) respectively.
  9. 9. The side punching die for workpiece machining according to claim 1, wherein the elastic limiting piece (22) comprises a first spring (221) and a limiting disc (222), the bottom of the upper die (2) is provided with the limiting disc (222) located above the limiting shaft (101) through the first spring (221), and two limiting rods (223) sliding through the upper die (2) are symmetrically arranged on the limiting disc (222).
  10. 10. A side punching die for workpiece processing according to claim 3, characterized in that a through discharging channel is formed in the limiting shaft (101), round openings communicated with the discharging channel are formed on two sides of the limiting shaft (101), and the positions of the two round openings correspond to the positions of the two first punching rods (431).

Description

Side punching die for workpiece machining Technical Field The invention relates to the technical field of punching dies, in particular to a side punching die for workpiece machining. Background The terminal end cap is a structural member in the lithium ion battery module, is usually made of conductive metal materials, is installed at the end part of the battery core terminal and mainly bears multiple functions such as current conduction, structural support and safety protection, and is required to be perforated at two sides in the injection molding or subsequent processing process of the terminal end cap, and the holes are mainly used for realizing installation and positioning, air exhaust and pressure relief or as a leading-out channel of a connecting terminal; In the prior art, the side wall punching operation of the pole end cap is processed one by adopting punching equipment, namely, one side punching is finished firstly, then the end cap is adjusted to punch the other side, and the processing mode is characterized by multiple clamping, the position of the end cap is adjusted for each clamping, the processing precision is easily affected, the holes on two sides of the end cap are asymmetric, the product quality is unqualified, the processing time is prolonged, the continuity of batch production is affected, and the production efficiency is reduced. In order to solve the above problems, the present application provides a side punching die for processing a workpiece. Disclosure of Invention The invention provides a side punching die for workpiece machining, which solves the problems that holes are easy to be asymmetric and unstable in quality, the process is time-consuming and the production consistency and efficiency are affected due to the fact that holes are easy to be opened at two sides due to the fact that the holes are required to be clamped and the positions are adjusted for multiple times when the side surfaces of a pole end cap are opened in the related art. The invention provides a side punching die for workpiece processing, which comprises a lower die and an upper die; The top of the lower die is provided with a limiting shaft for clamping and placing the end caps, the lower die is symmetrically provided with two elastic loading pieces, one adjacent side of each elastic loading piece is provided with a punching assembly, and the limiting shaft is arranged between the two punching assemblies; the punching assembly comprises a loading column, the loading column is arranged at one end, close to the limiting shaft, of the elastic loading piece, an end column is detachably arranged at one end, close to the limiting shaft, of the loading column, and a spike punching piece and a roller grinding piece are respectively arranged at two ends of the end column; When the upper die moves downwards, the two elastic loading pieces are pushed to drive the two loading posts to approach each other, and the spike punching pieces on the two end posts punch holes on two sides of the end cap respectively. As a further optimization scheme of the invention, a first thread head is fixed at one end of the end post, which is close to the limiting shaft, a second thread head is fixed at one end of the end post, which is far away from the limiting shaft, a thread channel is arranged in the loading post, the second thread head is in threaded connection with the thread channel, the roller grinding part is arranged at the end part of the second thread head and is arranged in the thread channel, and the spike punching part is detachably arranged at the end part of the first thread head. As a further optimization scheme of the invention, the spike punching piece comprises a first punching rod and a spike part, a first threaded hole is formed in the first threaded head, one end of the first punching rod is in threaded connection with the first threaded hole, and the spike part facing the limiting shaft is detachably connected with the other end of the first punching rod. As a further optimization scheme of the invention, the spike part comprises a second punching rod, a second threaded hole is formed in the first punching rod, one end of the first punching rod is in threaded connection with the second threaded hole, the other end of the first punching rod is fixedly provided with a spike head facing the limiting shaft, and the diameter of the second punching rod is smaller than that of the first punching rod. As a further optimization scheme of the invention, the roller grinding piece comprises a first grinding roller, one end of the end column, which is far away from the limiting shaft, is provided with the first grinding roller and a driving part for driving the first grinding roller to rotate, the first grinding roller is arranged in a threaded channel in the loading column, one end of the first grinding roller, which is far away from the end column, is fixedly provided with a second grinding roller, the size of the first gri