Search

CN-224208966-U - Material pressing device and stamping die

CN224208966UCN 224208966 UCN224208966 UCN 224208966UCN-224208966-U

Abstract

The utility model relates to the technical field of stamping dies, in particular to a pressing force device and a stamping die, wherein the pressing force device comprises a lower base plate, an upper base plate, a guide rod, a locking piece and a belleville spring, wherein the upper base plate is provided with a limiting hole, a guide hole and a mounting hole; when the bottom surface of the limiting plate is abutted against the bottom wall of the limiting hole, a moving space is reserved between the bottom surface of the upper base plate and the top surface of the lower base plate. The utility model realizes the modularized assembly of the pressing force device, has convenient disassembly and maintenance and low cost, the guide rod plays a role in guiding the lifting movement of the upper base plate, the movement stability of the upper base plate is improved, and the pressing force can be changed by changing belleville springs with different elastic force.

Inventors

  • XUE FEI
  • LIU XIAOLONG
  • ZHOU JILE
  • LIU MUSHENG
  • WEI CE
  • LIU XUAN
  • WANG TAO

Assignees

  • 广东中泰工业科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250527

Claims (7)

  1. 1. A material pressing device is characterized by comprising a lower base plate (1), an upper base plate (2), a guide rod (3), a locking piece (4) and a belleville spring (5), wherein the upper base plate (2) is sequentially communicated with a limiting hole (6), a guide hole (7) and a mounting hole (8) from top to bottom, a limiting plate (9) is arranged on the periphery of the upper end of the guide rod (3), the belleville spring (5) is arranged in the mounting hole (8) and sleeved outside the guide rod (3), two ends of the belleville spring (5) are respectively abutted against the top wall of the mounting hole (8) and the lower base plate (1), the upper end of the guide rod (3) penetrates through the guide hole (7) in a sliding mode and stretches into the limiting hole (6), the limiting plate (9) is located in the limiting hole (6), the locking piece (4) is used for enabling the guide rod (3) to be together with the lower base plate (1), and a moving space (14) is reserved between the bottom surface of the upper base plate (2) and the top surface of the lower base plate (1) when the bottom surface of the limiting plate (9) is abutted against the bottom wall of the limiting hole (6).
  2. 2. The pressing device of claim 1, wherein the guide rod (3) is provided with an axial hole (10) and an upper through hole (11) which are sequentially communicated from top to bottom, the locking piece (4) is positioned in the axial hole (10), and the locking end of the locking piece (4) penetrates through the hole and then is connected with the lower base plate (1).
  3. 3. A pressing device according to claim 2, characterized in that the lower pad (1) is provided with a lower via hole (12), the lower via hole (12) is used for being coaxially communicated with the upper via hole (11), and the locking end of the locking piece (4) sequentially penetrates through the upper via hole (11) and the lower via hole (12).
  4. 4. A pressing device according to claim 2 or 3, characterized in that the locking element (4) is a locking screw.
  5. 5. A pressing device according to claim 1, wherein the number of the belleville springs (5) is plural, and the belleville springs (5) are arranged in a straight line along the guide rod (3).
  6. 6. The pressing force device according to claim 1, wherein the top surface of the lower base plate (1) is concavely provided with a positioning hole (13), the bottom end of the belleville spring (5) and the bottom end of the guide rod (3) extend into the positioning hole (13), and the inner wall of the positioning hole (13) is abutted against the side wall of the bottom end of the belleville spring (5).
  7. 7. A stamping die comprising the pressing device according to any one of claims 1 to 6.

Description

Material pressing device and stamping die Technical Field The utility model relates to the technical field of stamping dies, in particular to a pressing device and a stamping die. Background In the stamping forming process of automobile plate, a stamping die is often adopted to punch and form a workpiece. Before the die of the stamping die and the male die are assembled to stamp the workpiece, the edge of the workpiece is required to be pressed by the blank holder and other parts, in the prior art, the elasticity of the nitrogen spring is adopted to provide the blank holder and other parts with pressing force, and the nitrogen spring is expensive, so that the number of the nitrogen springs is large, and the manufacturing cost of the stamping die can be remarkably increased. For example, in the prior art, chinese patent document 201420301391.6 discloses an upper die of a stamping die, which comprises an upper die holder, a plurality of elastic elements mounted in the upper die holder, and a cover plate detachably fixed on the upper die holder, wherein the elastic elements are fixed on the cover plate, and the elastic elements are nitrogen springs connected with an air pipe. Thus, the drawbacks are quite apparent and there is a need to provide a solution. Disclosure of utility model In order to solve the technical problems, the utility model aims to provide a material pressing device and a stamping die. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a pressure device, including the lower bolster, the upper padding plate, the guide bar, locking piece and belleville spring, the upper padding plate is from last to being provided with spacing hole in proper order down, guide hole and mounting hole, the upper end week side of guide bar is provided with the limiting plate, belleville spring installs outside the guide bar in the mounting hole and overlaps, the both ends of belleville spring are contradicted with the roof and the lower bolster of mounting hole respectively, the upper end slip of guide bar runs through the guide hole and stretches into spacing downthehole, the limiting plate is located spacing downthehole, the locking piece is used for locking guide bar and lower bolster together, when the diapire of the bottom surface conflict spacing hole of limiting plate, there is the travel space between the bottom surface of upper padding plate and the top surface of lower bolster. Further, the axial direction of the guide rod is sequentially communicated with an axial hole and an upper through hole from top to bottom, the locking piece is positioned in the axial hole, and the locking end of the locking piece penetrates through the hole and then is connected with the lower base plate. Further, the lower backing plate is provided with a lower through hole, the lower through hole is used for being communicated with the upper through hole coaxially, and the locking end of the locking piece sequentially penetrates through the upper through hole and the lower through hole. Further, the locking piece is a locking screw. Further, the quantity of belleville springs is a plurality of, and a plurality of belleville springs are the straight line arrangement setting along the guide bar. Further, the top surface of the lower backing plate is concavely provided with a positioning hole, the bottom end of the belleville spring and the bottom end of the guide rod are all extended into the positioning hole, and the inner wall of the positioning hole is abutted against the side wall of the bottom end of the belleville spring. The utility model also provides a stamping die, which comprises the material pressing device. The lower base plate of the pressing force device is arranged on the lower die base of the stamping die, the top surface of the upper base plate is in contact with the lower die plate or the blank holder of the stamping die, the belleville springs extend in normal state, the bottom surfaces of the limiting plates are in contact with the bottom walls of the limiting holes, a moving space is reserved between the bottom surfaces of the upper base plate and the top surface of the lower base plate, when the stamping die is matched, the lower die plate or the blank holder of the stamping die moves downwards and presses the upper base plate downwards, so that the upper base plate can move downwards along the guide rod and compress the belleville springs, the moving space provides space for the downward movement of the upper base plate, and the resilience force of the belleville springs applies pressing force to the lower die plate or the blank holder of the stamping die through the upper base plate. The utility model realizes the modularized assembly of the pressing force device, has convenient disassembly and maintenance and low cost, the guide rod plays a role in guiding the lifting movement of the upper base plate, the movement stability