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CN-224208921-U - Stamping die for nut piece

CN224208921UCN 224208921 UCN224208921 UCN 224208921UCN-224208921-U

Abstract

The utility model discloses a stamping die for a nut piece, which comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die base, the bottom of the upper die base is fixedly connected with an upper die plate, the bottom of the upper die plate is fixedly connected with a punch fixing plate, the bottom of the punch fixing plate is fixedly connected with a plurality of first punches and second punches positioned on one side of each first punch, the lower die assembly comprises lower die bases positioned on two sides, the tops of the two lower die bases are fixedly connected with a lower die plate together, the top of the lower die plate is provided with a channel for a nut plate to pass through, and the bottom of the channel is provided with a first punched hole for the first punches to pass through and a second punched hole for the second punches to pass through. The utility model adopts the combination of the round first punch and the regular hexagon second punch, and is matched with the punching holes with the corresponding shapes on the lower die plate, so that the hole patterns required by the nut piece can be punched efficiently and accurately, the processing efficiency and the forming precision of the nut piece are improved, and the strict requirements of industrial production on the specification and the quality of the nut piece are met.

Inventors

  • XU YAN

Assignees

  • 浙江创世通汽车零部件有限公司

Dates

Publication Date
20260508
Application Date
20250513

Claims (5)

  1. 1. The stamping die for the nut piece is characterized by comprising an upper die assembly and a lower die assembly, wherein: The upper die assembly comprises an upper die holder (1), an upper die plate (2) is fixedly connected to the bottom of the upper die holder (1), a punch fixing plate (3) is fixedly connected to the bottom of the upper die plate (2), a plurality of uniformly-distributed round first punches (4) with equal intervals are fixedly connected to the bottom of the punch fixing plate (3), and a second punch (5) which is located on one side of each first punch (4) and is in a regular hexagon shape; The lower die assembly comprises lower die bases (6) located on two sides, the tops of the two lower die bases (6) are fixedly connected with a lower die plate (7) together, a channel (71) for a nut plate (8) to pass through is formed in the top of the lower die plate (7), and a first punching hole (72) for a first punch (4) to pass through and a second punching hole (73) for a second punch (5) to pass through are formed in the bottom of the channel (71).
  2. 2. The stamping die for the nut pieces, as claimed in claim 1, is characterized in that a buffer plate (9) is arranged below the punch fixing plate (3), and four corners of the buffer plate (9) are respectively connected with the upper die holder (1) through buffer mechanisms (10).
  3. 3. The stamping die for the nut pieces is characterized in that the buffer mechanism (10) comprises a limiting sleeve (101), the limiting sleeve (101) is installed inside a buffer plate (9), connecting columns (102) are inserted into the limiting sleeve (101), sliding blocks (103) are symmetrically installed at two ends of the bottom of the connecting columns (102), sliding grooves (104) which are in sliding fit with the sliding blocks (103) are formed in the limiting sleeve (101), fixing blocks (105) penetrate through the limiting sleeve (101) at the top of the connecting columns (102) and are fixedly connected with the fixing blocks (105), the fixing blocks (105) are fixedly connected with an upper die holder (1), the bottoms of the fixing blocks (105) are fixedly connected with the top ends of reset springs (106), the bottoms of the reset springs (106) are fixedly connected with the limiting sleeve (101), and the connecting columns (102) are arranged inside the reset springs (106).
  4. 4. A stamping die for nut pieces as claimed in claim 3, characterized in that the buffer plate (9) is provided with a first through hole (91) through which the first punch (4) passes and a second through hole (92) through which the second punch (5) passes.
  5. 5. The stamping die for the nut pieces is characterized in that two sides of the bottom of the upper die holder (1) are fixedly connected with a first guide seat (11) respectively, the top of the lower die holder (6) is fixedly connected with a second guide seat (12), the second guide seat (12) is fixedly connected with a guide rod (13), and the top of the guide rod (13) is matched and spliced with the first guide seat (11).

Description

Stamping die for nut piece Technical Field The utility model relates to the technical field of dies, in particular to a stamping die for a nut piece. Background In modern industrial production, the nut piece is used as an indispensable standard connecting piece and is widely applied to a plurality of fields such as mechanical manufacturing, automobiles, aerospace and the like. The quality and the processing precision of the nut directly influence the assembly quality and the overall performance of the product, so that high requirements are put on the efficient and high-precision processing of the nut. At present, the stamping processing of the nut piece is mainly finished by a stamping die, and the traditional stamping die for the nut piece has certain limitations on structural design and working performance. The punch structure of the traditional stamping die is single, so that the hexagonal outer hole and the round inner hole required by the nut piece are difficult to stamp at one time, and a plurality of procedures or sets of dies are often required to be matched for completion, so that the processing efficiency is low, accumulated errors are easy to generate in the process of processing for a plurality of times, the forming precision of the nut piece is influenced, and the strict requirements of industrial production on the specification and quality of the nut piece are difficult to meet. Meanwhile, in the stamping process, a punch and a plate can generate larger impact force in contact moment, and due to the lack of an effective buffer device, the die part is extremely easy to damage due to overlarge stress, and the frequent maintenance and replacement of the die part increase the production cost. Based on the above situation, the utility model provides a stamping die for a nut piece, which can effectively solve the above problems. Disclosure of utility model The utility model aims at the state of the prior art, overcomes the defects and provides a stamping die for a nut piece. The utility model is realized by the following technical scheme: A stamping die for nut pieces, comprising an upper die assembly and a lower die assembly, wherein: The upper die assembly comprises an upper die holder, an upper die plate is fixedly connected to the bottom of the upper die holder, a punch fixing plate is fixedly connected to the bottom of the upper die plate, a plurality of uniformly-spaced and round first punches and regular hexagon second punches are fixedly connected to the bottom of the punch fixing plate, and the second punches are located on one side of each first punch; the lower die assembly comprises lower die bases positioned on two sides, the tops of the two lower die bases are fixedly connected with a lower die plate together, a channel for a nut plate to pass through is formed in the top of the lower die plate, and a first punching hole for a first punch to pass through and a second punching hole for a second punch to pass through are formed in the bottom of the channel. According to the above technical scheme, as a further preferable technical scheme of the above technical scheme, a buffer plate is arranged below the punch fixing plate, and four corners of the buffer plate are respectively connected with the upper die holder through buffer mechanisms. According to the technical scheme, as a further preferable technical scheme of the technical scheme, the buffer mechanism comprises a limit sleeve, the limit sleeve is arranged in the buffer plate, a connecting column is inserted into the limit sleeve, sliding blocks are symmetrically arranged at two ends of the bottom of the connecting column, sliding grooves matched with the sliding blocks in a sliding mode are formed in the limit sleeve, the top of the connecting column penetrates through the limit sleeve and is fixedly connected with a fixing block, the fixing block is fixedly connected with an upper die holder, the bottom of the fixing block is fixedly connected with the top end of a reset spring, the bottom end of the reset spring is fixedly connected with the limit sleeve, and the connecting column is arranged in the reset spring. According to the above technical scheme, as a further preferable technical scheme of the above technical scheme, the buffer plate is provided with a first through hole for the first punch to pass through and a second through hole for the second punch to pass through. According to the above technical scheme, as a further preferable technical scheme of the above technical scheme, the two sides of the bottom of the upper die holder are respectively and fixedly connected with a first guide holder, the top of the lower die holder is fixedly connected with a second guide holder, the second guide holder is fixedly connected with a guide rod, and the top of the guide rod is matched and spliced with the first guide holder. Compared with the prior art, the utility model has the following advantages: The nut piece stamping die pro