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CN-121988724-A - High-precision anti-deformation casting device

CN121988724ACN 121988724 ACN121988724 ACN 121988724ACN-121988724-A

Abstract

The invention relates to the technical field of casting devices, and discloses a high-precision anti-deformation casting device which comprises a machine table, a lifting frame, an electric sliding table and a buffering mechanism, wherein a lower die which is fixedly arranged and an upper die which can move up and down are arranged at the top of the machine table, a supporting cloth which is used for receiving castings separated from the upper die is arranged at the inner side of the lifting frame, the electric sliding table is arranged at the movable end of the electric sliding table, the electric sliding table drives the lifting frame to move below the upper die, the electric sliding table is arranged at the top of the machine table, supporting bars are fixedly arranged between the bottom of the electric sliding table and the top of the machine table, and the buffering mechanism is arranged at two sides of the lifting frame and the supporting cloth and is used for buffering impact force of the castings on the upper die falling onto the supporting cloth. According to the invention, the movable end of the electric sliding table drives the lifting frame to integrally move between the upper die and the lower die, so that the castings fall onto the supporting cloth, and the castings are flexibly picked up by the supporting cloth, so that the deformation caused by hard contact of the castings is avoided.

Inventors

  • GAO SHUXIN

Assignees

  • 南通振亚球墨铸造有限公司

Dates

Publication Date
20260508
Application Date
20260126

Claims (9)

  1. 1. The utility model provides a high accuracy shape casting device that preapring for an unfavorable turn of events, includes board (1), lower mould (2) and upper mould (3) that can reciprocate of fixed setting are installed at board (1) top, its characterized in that still includes: The lifting frame (6), the inner side of the lifting frame (6) is provided with a supporting cloth (7) for taking the castings separated from the upper die (3); The electric sliding table (5), the lifting frame (6) is arranged at the movable end of the electric sliding table (5), the lifting frame (6) is driven to move below the upper die (3) through the electric sliding table (5), the electric sliding table (5) is arranged at the top of the machine table (1), and a supporting bar (4) is fixedly arranged between the bottom of the electric sliding table (5) and the top of the machine table (1); The buffering mechanism is arranged at two side edges of the lifting frame (6) and the supporting cloth (7) and is used for buffering impact force of a casting on the upper die (3) falling onto the supporting cloth (7).
  2. 2. The high-precision deformation-preventing casting device according to claim 1, wherein the buffer mechanism comprises two support rods (8) fixedly installed between inner walls of two opposite sides of the lifting frame (6), the outer surfaces of the two support rods (8) are respectively provided with a movable plate (9) in a sliding mode, the side edge, close to the middle position, of the supporting cloth (7) is fixedly installed with the outer surface of the movable plate (9), and a contraction assembly is installed between the movable plate (9) and two ends of the side edge of the supporting cloth (7).
  3. 3. A high precision deformation-preventing casting apparatus according to claim 2, wherein the outer surface of the support rod (8) is provided with a compression spring (12), and the compression spring (12) is disposed between two opposing moving plates (9).
  4. 4. A high-precision deformation-preventing casting device according to claim 3, wherein the shrinkage assembly comprises mounting grooves (10) formed in the side edges of the two ends of the movable plate (9), one end inner wall of each mounting groove (10) is rotatably provided with a rotating plate (11) through a torsion rotating shaft, and the side edges of the supporting cloth (7) close to the two ends of the supporting cloth are fixedly arranged on the outer surfaces of the rotating plates (11).
  5. 5. The high-precision deformation-preventing casting device according to claim 4, wherein a reset assembly for pushing the movable plate (9) to reset is arranged on the inner side of the electric sliding table (5), the reset assembly comprises a mounting plate (21) fixedly mounted on the inner side of the electric sliding table (5), an inclined guide plate (22) and a vertical guide plate (23) are fixedly mounted on the upper surface of the mounting plate (21), the vertical guide plate (23) and the inclined guide plate (22) are connected end to end, a guide pillar (14) is fixedly mounted at the bottom end of the movable plate (9), and the guide pillar (14) is intermittently attached to the outer surfaces of the vertical guide plate (23) and the inclined guide plate (22).
  6. 6. The high-precision deformation-preventing casting device according to claim 5, wherein a pushing component for pushing the rotating plate (11) to reset is mounted on the side edge of the moving plate (9), the pushing component comprises a fixed block (15) fixedly mounted on the outer surface of the moving plate (9), a vertical rod (16) penetrates through the outer surface of the fixed block (15) from top to bottom, a top plate (19) is fixedly mounted on the top end of the vertical rod (16), wedge-shaped blocks (20) are fixedly mounted on the two end parts of the top plate (19), and the outer surface of the rotating plate (11) close to the rotation center of the rotating plate can be abutted against the inclined surfaces of the wedge-shaped blocks (20).
  7. 7. The high-precision deformation-preventing casting device according to claim 6, wherein a chassis (17) is fixedly arranged at the bottom end of the vertical rod (16), a return spring (18) is sleeved on the outer surface of the vertical rod (16), and the return spring (18) is arranged between the fixed block (15) and the chassis (17).
  8. 8. A high precision deformation preventing casting apparatus according to claim 7, wherein the inclined guide plate (22) is provided with an inclined table (24) near the outer surface of the top end thereof, and the outer periphery of the bottom plate (17) is abutted against the inclined table (24).
  9. 9. The high-precision deformation-preventing casting device according to claim 1, wherein a fan (25) is fixedly arranged at the top end of the machine table (1), and a plurality of ventilation holes (13) are uniformly formed in the outer surface of the supporting cloth (7) in a penetrating mode.

Description

High-precision anti-deformation casting device Technical Field The invention relates to the technical field of casting devices, in particular to a high-precision anti-deformation casting device. Background In the manufacturing process of the aluminum alloy wheels of the automobiles, low-pressure casting is an important factor influencing the cost and qualification rate of products. In the low-pressure casting defective product, the blank deformation accounts for 20% -30%. The main reasons for the deformation of the blank are that the temperature of the die is too high in the demolding process and the impact force between the blank and the receiving disc is too large in the demolding process, wherein the deformation caused by the impact between the blank and the receiving disc in the demolding process is most. The blank temperature is 350-450 ℃ during low pressure casting and demolding of the aluminum alloy wheel, the blank strength in the temperature range is very low, the blank is easy to deform after being impacted, meanwhile, the direct impact surface of the aluminum alloy wheel blank and the receiving disc is the lower rim ear protection during demolding, in the subsequent machining process of the aluminum alloy wheel of the automobile, the lower rim ear protection part is a positioning reference surface during the machining process, if the machining positioning reference surface deforms, the machining precision is directly affected, the problems of out-of-tolerance of dynamic balance, radial runout, out-of-tolerance of end runout and the like of a machined product are caused, and the problem is more remarkable when the wheel size is larger. The prior device (bulletin number: CN 203409232U) for preventing casting deformation of low-pressure casting products has at least the following defects that the impact force between a blank and a receiving disc is effectively buffered by shortening the distance between the lower rim of the blank and the receiving disc and arranging a buffer spring and the like, the deformation of the blank after demoulding is reduced, but the lower rim of the blank is still in hard contact with the receiving disc, and the impact force when the lower rim of the blank falls on the surface of the receiving disc is easy to deform. Disclosure of Invention The invention aims to solve the defects in the prior art and provides a high-precision deformation-preventing casting device. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a high accuracy shape casting device that preapring for an unfavorable turn of events, includes the board, the lower mould that fixedly set up and the last mould that can reciprocate are installed at the board top, still includes: The inner side of the lifting frame is provided with a supporting cloth for receiving castings detached from the upper die; The electric sliding table is arranged at the movable end of the electric sliding table, the electric sliding table drives the lifting frame to move below the upper die, the electric sliding table is arranged at the top of the machine table, and a supporting bar is fixedly arranged between the bottom of the electric sliding table and the top of the machine table; And the buffer mechanism is arranged on two sides of the lifting frame and the supporting cloth and is used for buffering the impact force of the casting on the upper die falling onto the supporting cloth. As a further scheme of the invention, the buffer mechanism comprises two support rods fixedly arranged between the inner walls of the two opposite sides of the lifting frame, the outer surfaces of the two support rods are respectively and slidably provided with a movable plate, the side edge of the supporting cloth close to the middle position of the supporting cloth is fixedly arranged with the outer surface of the movable plate, and a contraction assembly is arranged between the movable plate and the two ends of the side edge of the supporting cloth. As a further scheme of the invention, the outer surface of the supporting rod is sleeved with a compression spring, and the compression spring is arranged between two opposite moving plates. As a further scheme of the invention, the contraction component comprises mounting grooves which are formed in the side edges of the two ends of the movable plate, the inner wall of one end of each mounting groove is rotatably provided with the rotary plate through the torsion rotary shaft, and the side edges of the support cloth, which are close to the two ends of the support cloth, are fixedly arranged on the outer surface of the rotary plate. As a further scheme of the invention, a reset component for pushing the movable plate to reset is arranged on the inner side of the electric sliding table, the reset component comprises a mounting plate fixedly arranged on the inner side of the electric sliding table, an inclined guide plate and a vert