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CN-120644635-B - Ultrahigh strength automobile aluminum alloy part die casting die

CN120644635BCN 120644635 BCN120644635 BCN 120644635BCN-120644635-B

Abstract

The invention discloses an ultrahigh-strength automobile aluminum alloy part die casting die which comprises a first bottom plate, a second bottom plate, a first template, a second template, a push rod mechanism, a cooling mechanism and an air-assisted demolding assembly, wherein two square blocks are fixedly arranged on the first bottom plate, the first template is fixedly arranged on the square blocks, a positioning rod is fixedly arranged on the first bottom plate, the second bottom plate is in sliding connection with the first bottom plate through the positioning rod, the second template is fixedly arranged on the second bottom plate, the push rod mechanism is slidably arranged in the first template, a cooling cavity is formed in the second template, the cooling mechanism is arranged in the cooling cavity in a sealing rotation mode, and the air-assisted demolding assembly is arranged in both the first template and the second template.

Inventors

  • LUO BIN
  • LIU YANPING
  • CHEN XIAO
  • ZHAO LIANG

Assignees

  • 江苏高卡轻合金有限公司

Dates

Publication Date
20260508
Application Date
20250627

Claims (6)

  1. 1. The die-casting die for the ultrahigh-strength automobile aluminum alloy part is characterized by comprising a first bottom plate (1), a second bottom plate (2), a first template (3), a second template (4), a push rod mechanism (5), a cooling mechanism (6) and a gas-assisted die-casting component (7), wherein two square blocks (11) are fixedly arranged on the first bottom plate (1), the first template (3) is fixedly arranged on the square blocks (11), a positioning rod (12) is fixedly arranged on the first bottom plate (1), the second bottom plate (2) is in sliding connection with the first bottom plate (1) through the positioning rod (12), the second template (4) is fixedly arranged on the second bottom plate (2), the push rod mechanism (5) is slidably arranged in the first template (3), a cooling cavity (41) is formed in the second template (4), the cooling mechanism (6) is arranged in a sealing and rotating mode, and the gas-assisted die-casting component (7) is arranged in the first template (3) and the second template (4). The cooling mechanism (6) comprises a cooling plate (61), a first water inlet ring (62), a second water inlet ring (63), a first water discharge ring (64) and a second water discharge ring (65), wherein a first cooling channel (611) and a second cooling channel (612) are uniformly arranged in the cooling plate (61) at intervals in the circumference, the first water inlet ring (62) and the first water discharge ring (64) are fixedly arranged on the inner side of the cooling plate (61), the second water inlet ring (63) and the second water discharge ring (65) are fixedly arranged on the outer side of the cooling plate (61), the first water inlet ring (62) and the first water discharge ring (64) are respectively communicated with the input end and the output end of the first cooling channel (611), and the second water inlet ring (63) and the second water discharge ring (65) are respectively communicated with the input end and the output end of the second cooling channel (612); The gas-assisted demoulding assembly (7) comprises a plurality of air holes (71), a plugging rod (72), a hydraulic rod (73) and a driving rod (74) which are formed in an outer ring of the second template (4) and the first template (3), wherein the plugging rod (72) is arranged in the air holes (71) in a sliding and rotating mode, the end portion of the air holes (71) is provided with a rectangular hydraulic rod (73) in a sliding mode, the driving rod (74) is fixedly arranged at the output end of the hydraulic rod (73), the driving rod (74) is connected with the plugging rod (72) in a sliding mode, and a plurality of gas transmission channels which are used for communicating the air holes (71) with an external gas supply mechanism are formed in the first template (3) and the second template (4).
  2. 2. The die casting die for the ultrahigh-strength automobile aluminum alloy parts, as set forth in claim 1, characterized in that the second die plate (4) is provided with a first water inlet cavity (42), a second water inlet cavity (43), a first water discharge cavity (44) and a second water discharge cavity (45) for sealing rotation of the first water inlet ring (62), the second water inlet ring (63), the first water discharge ring (64) and the second water discharge ring (65), the outer side of the second water inlet cavity (43) is provided with a plurality of L-shaped water inlet channels (431) along the tangential direction, the second die plate (4) is also provided with an annular cavity (46) communicated with the L-shaped water inlet channels (431), and the first water inlet cavity (42), the second water inlet cavity (43), the first water discharge cavity (44), the second water discharge cavity (45) and the annular cavity (46) are all communicated with an external cooling circulation mechanism through water delivery pipes.
  3. 3. The die casting die for ultrahigh-strength automobile aluminum alloy parts according to claim 2, wherein a plurality of blades (631) are fixedly arranged on the second water inlet ring (63) in a circumference manner, and the height of each blade (631) covers the L-shaped water inlet channel (431) and is smaller than the width of the second water inlet cavity (43).
  4. 4. The die casting die for the ultrahigh-strength automobile aluminum alloy parts, as set forth in claim 1, characterized in that the air hole (71) is internally provided with a guide groove (711) consisting of a semi-arc groove and a straight groove; the blocking rod (72) is fixedly provided with a clamping block (721) outside, and the clamping block (721) is clamped into the guide groove (711) and slides or rotates along the guide groove (711).
  5. 5. The ultra-high strength automobile aluminum alloy part die casting mold according to claim 1, wherein the plugging rod (72) is internally provided with a spiral groove (722); the driving rod (74) is fixedly provided with a guide block (741), and the guide block (741) slides along the spiral groove (722).
  6. 6. The ultrahigh-strength automobile aluminum alloy part die casting die according to claim 1, wherein the ejector rod mechanism (5) comprises a top plate (51) and ejector rods (52), a plurality of ejector rods (52) are fixedly arranged on the top plate (51), the ejector rods (52) are slidably arranged on the first template (3), and a hydraulic cylinder is arranged between the top plate (51) and the first bottom plate (1).

Description

Ultrahigh strength automobile aluminum alloy part die casting die Technical Field The invention relates to the technical field of metal die casting, in particular to an ultrahigh-strength automobile aluminum alloy part die casting die. Background Under the trend of light weight of automobiles, the application of the ultra-high strength aluminum alloy die castings is increasingly wide, and the ultra-high strength die castings are also unexpectedly required to adopt more precise and severe die casting environments, especially the cooling of the die and the die stripping work after the molding in the die casting molding process are more severe. At present, most of traditional moulds adopt unidirectional linear cooling water channels to cool the moulds, cooling media flow along a fixed path in such a way that the temperature difference of the surfaces of cavities is large, so that gradual local overheat shrinkage porosity and thermal stress concentration of the moulds are caused, the service life of the moulds is reduced, and the cooling speed is slower. Therefore, it is necessary to provide an ultra-high strength die casting mold for aluminum alloy parts of automobiles to solve the problems set forth in the background art. Disclosure of Invention In order to achieve the purpose, the invention provides the technical scheme that the die-casting die for the ultrahigh-strength automobile aluminum alloy part comprises a first bottom plate, a second bottom plate, a first template, a second template, a push rod mechanism, a cooling mechanism and a gas-assisted demoulding assembly, wherein two square blocks are fixedly arranged on the first bottom plate, the first template is fixedly arranged on the square blocks, a positioning rod is fixedly arranged on the first bottom plate, the second bottom plate is in sliding connection with the first bottom plate through the positioning rod, the second template is fixedly arranged on the second bottom plate, the push rod mechanism is slidably arranged in the first template, a cooling cavity is formed in the second template, the cooling mechanism is arranged in the cooling cavity in a sealing rotation mode, and the gas-assisted demoulding assembly is arranged in the first template and the second template. Preferably, the cooling mechanism comprises a cooling plate, a first water inlet ring, a second water inlet ring, a first water discharge ring and a second water discharge ring, wherein a first cooling channel and a second cooling channel are uniformly arranged in the cooling plate at intervals in the circumference, the first water inlet ring and the first water discharge ring are fixedly arranged on the inner side of the cooling plate, the second water inlet ring and the second water discharge ring are fixedly arranged on the outer side of the cooling plate, the first water inlet ring and the first water discharge ring are respectively communicated with the input end and the output end of the first cooling channel, and the second water inlet ring and the second water discharge ring are respectively communicated with the input end and the output end of the second cooling channel. Preferably, the second template is provided with a first water inlet cavity, a second water inlet cavity, a first water discharge cavity and a second water discharge cavity which are used for sealing and rotating, the outer side of the second water inlet cavity is provided with a plurality of L-shaped water inlet channels along the tangential direction of the second water inlet cavity, the second template is also provided with an annular cavity communicated with the L-shaped water inlet channels, and the first water inlet cavity, the second water inlet cavity, the first water discharge cavity, the second water discharge cavity and the annular cavity are all communicated with an external cooling circulation mechanism through water pipes. Preferably, the second water inlet ring is provided with a plurality of blades fixedly arranged on the circumference, and the heights of the blades cover the L-shaped water inlet channel and are smaller than the width of the second water inlet cavity. Preferably, the gas-assisted demolding assembly comprises a plurality of air holes, a plugging rod, a hydraulic rod and a driving rod, wherein the air holes, the plugging rod, the hydraulic rod and the driving rod are formed in the outer ring of the second template and the first template, the plugging rod is arranged in the air holes in a sliding and rotating mode, the rectangular hydraulic rod is arranged at the end part of the air hole in a sliding mode, the driving rod is fixedly arranged at the output end of the hydraulic rod, the driving rod is in sliding connection with the plugging rod, and a plurality of gas transmission channels used for communicating the air holes with an external gas supply mechanism are formed in the first template and the second template. Preferably, a guide groove formed by a semi-arc groove