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CN-224208935-U - Conical guide and buffer device of trimming and punching die

CN224208935UCN 224208935 UCN224208935 UCN 224208935UCN-224208935-U

Abstract

The utility model relates to the technical field of die manufacturing, and discloses a conical guiding and buffering device of a trimming and punching die, which comprises four conical guide block male dies, four die buffering blocks, a lower die, conical guide block female dies, a pressing plate and an upper die, wherein the four conical guide block male dies are respectively arranged at key parts of the lower die, the four conical guide block female dies are respectively arranged on the pressing plate and form a conical matching relationship with the conical guide block male dies of the die, the four die buffering blocks are respectively arranged at four corners of the lower die of the die, and the cone angle of the conical guide block male dies of the die ranges from 30 degrees to 60 degrees. According to the utility model, the die buffer block is arranged to effectively buffer the die closing impact force, so that the abrasion degree of the die is reduced, and the service life of the die is prolonged. Experimental data show that the service life of the die adopting the technical scheme of the utility model is prolonged by more than 30% compared with that of the traditional die, and meanwhile, the production cost is reduced by more than 15%.

Inventors

  • XU CHUAN
  • WANG YAPENG
  • DING HANLIN
  • ZHAO JIAN
  • Sun Dahe
  • WANG XIUYAN

Assignees

  • 吉林弘凯专用车制造有限公司

Dates

Publication Date
20260508
Application Date
20250522

Claims (8)

  1. 1. The conical guiding and buffering device for the trimming and punching die is characterized by comprising a die conical guide block male die (1), a die buffering block (2), a die lower die (3), conical guide block female dies (4), a material pressing plate (5) and a die upper die (6), wherein the number of the die conical guide block male dies (1) is four, the die conical guide block male dies are respectively arranged at key positions of the die lower die (3), the number of the conical guide block female dies (4) is four, the die conical guide block male dies are arranged on the material pressing plate (5) and form conical matching relation with the die conical guide block male dies (1), and the number of the die buffering blocks (2) is four and are respectively arranged at four corners of the die lower die (3).
  2. 2. The conical guiding and buffering device of the trimming and punching die is characterized in that the cone angle of the die conical guide block male die (1) ranges from 30 degrees to 60 degrees, and the contact area of the die conical guide block male die (1) and the conical guide block female die (4) reaches 100 percent when the die is clamped.
  3. 3. The conical guiding and buffering device of the trimming and punching die is characterized in that the die conical guide block male die (1) is fixed on the die lower die (3) through bolts, and the flatness error of the upper surface of the die lower die (3) is not more than 0.01mm.
  4. 4. The conical guiding and buffering device of the trimming and punching die is characterized in that the die buffering block (2) is made of elastic materials, the elastic modulus of the die buffering block ranges from 5MPa to 20MPa, and the height of the die buffering block (2) is adjustable and is fixed on a lower die (3) of the die in a threaded connection mode.
  5. 5. The conical guiding and buffering device for the trimming and punching die is characterized in that an arc-shaped contact surface is arranged at the top of the die buffering block (2), and the contact surface is matched with the bottom plane of the material pressing plate (5) to increase the contact area.
  6. 6. The conical guiding and buffering device for the trimming and punching die is characterized in that the hardness of the bottom plane of the material pressing plate (5) ranges from HRC50 to HRC60, and guide grooves are formed in the periphery of the material pressing plate (5) and are used for being matched with guide columns of the upper die (6) of the die.
  7. 7. The conical guiding and buffering device for the trimming and punching die is characterized in that four guiding posts are arranged at the bottom of the upper die (6) of the die, and a mounting interface is arranged at the top of the upper die (6) of the die and used for being connected with a driving device of a press.
  8. 8. The conical guiding and buffering device for the trimming and punching die is characterized in that mounting holes are formed in four corners of a lower die (3) of the die, and the diameters of the mounting holes are matched with the outer diameter of threads of a buffering block (2) of the die to ensure the installation stability of the buffering block.

Description

Conical guide and buffer device of trimming and punching die Technical Field The utility model relates to the technical field of die manufacturing, in particular to a conical guiding and buffering device of a trimming and punching die. Background In the technical field of die manufacturing, a trimming and punching process is an important link for realizing high-precision product processing, and high requirements are put on the guiding precision of a die and the stability of a die closing process. In the existing trimming and punching process, the control of the fit clearance between the upper die and the lower die and the buffer treatment during die assembly directly affect the processing precision of products and the service life of the dies. The traditional die has obvious defects in the aspects of guiding and buffering, and particularly under complex working conditions, the design of a guiding structure is difficult to meet the requirement of high-precision matching, so that deviation occurs in the trimming and punching process, and the product quality is affected. Meanwhile, due to the lack of an effective buffer device, the die is subjected to larger impact force in the die assembly process, so that the surface of the die is easy to wear and even damage, the service life of the die is shortened, and the production cost is increased. To solve the above problems, a conical guiding and buffering device for a trimming and punching die is provided. Disclosure of utility model The utility model aims to provide a conical guiding and buffering device for a trimming and punching die, which solves the problems of insufficient trimming and punching precision and easy damage of the die caused by improper control of fit clearance between an upper die and a lower die and overlarge die closing impact force in the prior art. The utility model provides a conical guiding and buffering device of a trimming and punching die, which comprises a die conical guide block male die, a die buffering block, a die lower die, conical guide block female dies, a material pressing plate and a die upper die, wherein the number of the die conical guide block male dies is four, the die conical guide block male dies are respectively arranged at key positions of the die lower die, the number of the conical guide block female dies is four, the die conical guide block female dies are arranged on the material pressing plate and form conical matching relation with the die conical guide block male dies, and the number of the die buffering blocks is four and are respectively arranged at four corners of the die lower die. By adopting the technical scheme, the conical structure is designed to guide the upper die and the lower die to realize accurate matching in the die assembling process of the upper die and the lower die. As a further description of the technical scheme, the cone angle of the conical guide block male die of the die ranges from 30 degrees to 60 degrees, and the contact area of the conical guide block male die of the die and the conical guide block female die reaches 100 percent when the die is closed. By adopting the technical scheme, the stability and the accuracy in the guiding process are ensured. As a further description of the technical scheme, the conical guide block male die of the die is fixed on the lower die of the die through bolts, and the flatness error of the upper surface of the lower die of the die is not more than 0.01mm. By adopting the technical scheme, the die cushion block is used for fixing the die cushion block. The diameter of the mounting hole is matched with the thread outer diameter of the die buffer block, so that the mounting stability of the buffer block is ensured. As a further description of the technical scheme, the die cushion block is made of elastic materials, the elastic modulus of the die cushion block ranges from 5MPa to 20MPa, and the height of the die cushion block is adjustable and is fixed on the lower die of the die in a threaded connection mode. By adopting the technical scheme, the assembly precision with other components is ensured. As a further description of the technical scheme, the top of the die buffer block is provided with an arc-shaped contact surface which is matched with the bottom plane of the material pressing plate so as to increase the contact area. Through adopting above-mentioned technical scheme, ensure the installation steadiness of buffer block. As further description of the technical scheme, the hardness of the bottom plane of the material pressing plate ranges from HRC50 to HRC60, and guide grooves are formed in the periphery of the material pressing plate and are used for being matched with guide posts of an upper die of the die. By adopting the technical scheme, the stability of the pressing plate in the descending process is ensured. As a further description of the technical scheme, four guide posts are arranged at the bottom of the upper die of the die, and a m