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CN-122007386-A - Design device and method for side trimming die of aluminum alloy casting

CN122007386ACN 122007386 ACN122007386 ACN 122007386ACN-122007386-A

Abstract

The invention provides a design device and a method for an aluminum alloy casting side trimming die, and belongs to the technical field of trimming dies of cooling water pumps of automobile engines. The side cutting device comprises an edge cutting machine, an upper die assembly and a lower die assembly, wherein the edge cutting machine is provided with an upper die plate, the upper die assembly is mounted on the upper die plate and used for moving towards the lower die assembly in a reciprocating mode, the lower die assembly is used for placing a member to be cut, the side cutting device further comprises a main edge cutting module and a side cutting module, the main edge cutting module comprises a cutter plate for extruding horizontal leftover materials of the member to be cut, the side cutting module comprises a material pressing column and a riser ejector rod, the material pressing column is arranged on the upper die assembly, and the riser ejector rod is arranged on the lower die assembly for extruding vertical leftover materials which are bent downwards to be bent upwards. According to the invention, through the cooperative design of the main trimming module and the side trimming module, the removal operation of slag ladles in the horizontal direction, pouring channels and pouring channels in the vertical direction of the aluminum alloy castings can be synchronously completed, multiple procedures or additional equipment are not needed, the production efficiency is greatly improved, and the labor intensity is reduced.

Inventors

  • FENG CHANGHONG
  • ZHANG DAI
  • YUAN XIAOFAN
  • XIN BO
  • HU XIAO
  • SONG YUHANG
  • MING CHAO

Assignees

  • 西峡县飞龙铝制品有限责任公司

Dates

Publication Date
20260512
Application Date
20260323

Claims (10)

  1. 1. The design device of the aluminum alloy casting side trimming die comprises a trimming machine, an upper die assembly and a lower die assembly, wherein the trimming machine is provided with an upper die plate, the upper die assembly is installed on the upper die plate and is used for moving towards the lower die assembly in a reciprocating mode, the lower die assembly is used for placing a member to be trimmed, the design device is characterized by further comprising a main trimming module and a side trimming module, the main trimming module comprises a cutter plate (13), the cutter plate (13) is arranged on the upper die assembly and is used for moving along with the upper die assembly to squeeze horizontal leftover materials of the member to be trimmed, the side trimming module comprises a material pressing column (25) and a riser top rod (26), the material pressing column (25) is arranged on the upper die assembly and is arranged at intervals with the cutter plate (13), the material pressing column (25) is used for moving along with the upper die assembly to squeeze the vertical leftover materials of the member to be trimmed to be bent downwards, and the riser top rod (26) is arranged on the lower die assembly to squeeze the vertical leftover materials to be bent upwards.
  2. 2. The device for designing the side trimming die for the aluminum alloy castings according to claim 1, wherein the upper die assembly further comprises an upper die holder (17), a female die (14), a fixing plate (15) and a push rod (18), the upper die holder (17) is fixedly connected with the upper die plate, the fixing plate (15) is fixed below the upper die holder (17) through a fastening piece, the cutter plate (13) is embedded in the bottom of the female die (14) and is fixedly connected with the female die (14), one end of the push rod (18) is in threaded connection with a material returning block (21), the other end of the push rod is movably arranged in a push rod (18) mounting limiting hole formed in the upper die holder (17), and the material pressing column (25) is fixed below the upper die holder (17) through threaded connection and is positioned on one side of the material returning block (21).
  3. 3. The device for designing the side trimming die for the aluminum alloy castings, as set forth in claim 1, wherein the upper die assembly further comprises a material returning mechanism, the material returning mechanism comprises a material returning block (21), a spring plate (23), a rectangular spring (22), a spring guide post and an upper cover plate (19), the material returning block (21) is arranged in the die (14), the spring plate (23) is fixed on the upper side of the upper die holder (17) through a fastener, two ends of the spring guide post (30) are fixedly connected with the spring plate (23) and the upper die holder (17) respectively, the rectangular spring (22) is sleeved outside the spring guide post, and the upper cover plate (19) is fixed on the upper side of the spring plate (23) through the fastener and abuts against the upper end of the rectangular spring (22).
  4. 4. The device for designing the side trimming die for the aluminum alloy castings, as set forth in claim 1, characterized in that the lower die assembly further comprises a positioning supporting mechanism and a guiding limiting mechanism, the positioning supporting mechanism comprises a lower die holder (10), a lower base plate (9), a male die assembly (11) and a positioning mandrel (3), the lower die holder (10) is fixedly arranged on the lower die plate, the lower base plate (9) is fixed above the lower die holder (10) through a fastening piece, the male die assembly (11) is matched with the positioning mandrel (3) in a positioning mode through a cylindrical pin, the male die assembly (11) is fixed above the lower base plate (9) through a fastening piece, and the positioning mandrel (3) is arranged on the male die assembly (11) and used for positioning a member to be trimmed.
  5. 5. The device for designing the side trimming die for the aluminum alloy castings according to claim 4, wherein the guide limiting mechanism comprises an adjusting block (1), a limiting sleeve (2) and a sliding guide post (12), the adjusting block (1) and the limiting sleeve (2) are sleeved outside the sliding guide post (12), and the lower end of the sliding guide post (12) is fixedly connected with the lower die holder (10).
  6. 6. The device for designing an aluminum alloy casting side trimming die according to claim 1, wherein the lower die assembly further comprises a cylinder support (27) and a thin arm cylinder (24), the cylinder support (27) is fixed on one side of the lower die holder (10) through fastening fasteners, the thin arm cylinder (24) is fixed on the cylinder support (27) through a hexagon socket head cap screw (28), the riser ejector rod (26) is in threaded connection with a piston rod of the thin arm cylinder (24) and is fixedly connected with a gas path of the thin arm cylinder (24) through a gas pipe.
  7. 7. The device for designing the side trimming die for aluminum alloy castings according to claim 3, wherein three uniformly arranged ejector rod (18) mounting holes are formed in the material returning block (21), the ejector rods (18) penetrate through the mounting holes to be connected with the material returning block (21), the ejector rods (18) are mounted in the ejector rod (18) mounting limiting holes formed in the upper die holder (17), and the end face of the material returning block (21) is level with the end face of the cutter plate (13) or higher than the end face of the cutter plate by 2-3mm.
  8. 8. The device for designing an aluminum alloy casting side trimming die according to claim 5, wherein the upper die assembly is further provided with a sliding guide sleeve (16), the sliding guide sleeve (16) is embedded in the upper die holder (17) through interference fit, the lower die assembly is further provided with a sliding guide post (12), the sliding guide post (12) is fixed on the lower die holder (10) through interference fit, and the sliding guide sleeve (16) and the sliding guide post (12) are in three groups in total and are in clearance fit.
  9. 9. The device for designing a side trimming die for aluminum alloy castings according to claim 2, wherein the upper die assembly further comprises a punch, the punch comprises a punch A (32) and a punch B (33), two punch mounting holes are formed in the fixing plate (15), and the punch A (32) and the punch B (33) are mounted in the punch mounting holes and are used for removing a diaphragm in a hole of a product in blank forming in the trimming process.
  10. 10. A method for side trimming of aluminum alloy castings, employing the apparatus of any one of claims 1 to 9, characterized by comprising the steps of: The method comprises the steps of firstly, fixedly connecting all parts of an upper die assembly of a device with an upper die plate of an edge cutter after the parts are assembled according to a connection relation, fixedly connecting all parts of a lower die assembly with a lower die plate of the edge cutter after the parts are assembled according to the connection relation, correcting the relative coaxial positions of the upper die assembly and the lower die assembly, locking and fixing the relative coaxial positions, and communicating an air channel of a thin arm air cylinder (24) of a side cutting module with a control air channel of the edge cutter through an air pipe to finish air channel debugging; Placing the blank on a positioning mandrel (3) of the lower die assembly, enabling the blank to be attached to the upper surface of the male die assembly (11), and enabling the upper die assembly to be in an initial position; Starting the edge cutter, enabling the upper die assembly to move downwards, enabling the sliding guide sleeve (16) to guide the sliding guide pillar (12) in a clearance fit manner, enabling the lower end face of the material returning block (21) to be attached to the upper surface of a blank, enabling the upper die to move downwards continuously, enabling the rectangular spring (22) to be compressed, enabling the material returning block (21) to be attached to the blank, enabling the knife edge of the cutter plate (13) to be in contact with a blank slag ladle and a horizontal pouring channel and cut off, and enabling the material pressing column (25) to be in contact with the upper end face of the vertical pouring channel and to be bent downwards; Continuously moving the upper die downwards until the sliding guide sleeve (16) is in contact with the limiting sleeve to form a die assembly state, and enabling the cutter edge of the cutter plate (13) to exceed the lower end face of the slag ladle at the lowest end by 3-5mm; Step five, starting the thin arm cylinder (24), wherein a piston rod of the thin arm cylinder drives the riser ejector rod (26) to move upwards, so that the pouring gate in the vertical direction is bent upwards; And step six, the upper die assembly returns upwards, and the blank is taken out and placed at a specified position.

Description

Design device and method for side trimming die of aluminum alloy casting Technical Field The invention belongs to the technical field of trimming dies of cooling water pumps of automobile engines, and particularly relates to a design device and a method of a side trimming die of an aluminum alloy casting. Background In an automobile engine cooling system, a water pump die casting (such as a water pump body and a bracket) is formed by adopting an aluminum alloy die casting process, and the periphery of a formed blank inevitably forms excessive scraps such as a slag ladle, a runner and the like, and the excessive scraps need to be removed through trimming treatment so as to meet the subsequent assembly and use requirements. The pouring gate is divided into a horizontal direction and a vertical direction, wherein the pouring gate and the slag ladle in the horizontal direction can be directly cut off through a conventional trimming die, but the pouring gate in the vertical direction is required to be processed in a side cutting mode due to special structural orientation. The Chinese patent application No. CN201811160265.2 proposes a side trimming device and a composite die for trimming leftover materials, the main structure of the side trimming device comprises two fixing seats, an ejection mechanism, a die holder, a clamping plate and a stripper plate, wherein the ejection mechanism, the die holder, the clamping plate and the stripper plate are sequentially connected between the fixing seats from top to bottom, a trimming punch fixed on the die holder, a trimming knife edge punch and a sliding seat are arranged below the stripper plate, and the side trimming and other working procedures can be synchronously carried out. However, the existing device has obvious defects that the structural design of the device cannot simultaneously finish the removal operation of the material handle and the slag ladle in the horizontal direction and the vertical direction (lateral direction) of the die-casting aluminum alloy part, so that a plurality of working procedures are needed or the leftover materials in different directions are respectively treated by means of additional equipment, the complexity of the production flow is increased, the production period is prolonged, the labor intensity of workers is also improved, meanwhile, the product is easily damaged due to multiple positioning and operation in the step-by-step trimming process, and the quality stability of the product is influenced, and therefore, the device and the method for designing the side trimming die of the aluminum alloy casting are provided to solve the problems. Disclosure of Invention The invention aims to solve the technical problem that the device can not remove a material handle or a slag ladle in the two directions of the horizontal direction and the vertical direction of a die-casting aluminum alloy part, and provides a design device and a method for a side trimming die of an aluminum alloy casting. The technical scheme includes that the design device of the side trimming die for the aluminum alloy castings comprises a trimming machine, an upper die assembly and a lower die assembly, wherein the trimming machine is provided with an upper die plate, the upper die assembly is installed on the upper die plate and used for moving towards the lower die assembly in a reciprocating mode, the lower die assembly is used for placing a member to be trimmed, the design device is characterized by further comprising a main trimming module and a side trimming module, the main trimming module comprises a cutter plate, the cutter plate is arranged on the upper die assembly and used for moving along with the upper die assembly to squeeze horizontal leftover materials of the member to be trimmed, the side trimming module comprises a material pressing column and a riser rod, the material pressing column is arranged on the upper die assembly and is arranged at intervals with the cutter plate, the material pressing column is used for moving along with the upper die assembly to squeeze the vertical leftover materials of the member to be trimmed to bend downwards, and the riser rod is arranged on the lower die assembly to move upwards to squeeze the vertical leftover materials to bend downwards. The upper die assembly further comprises an upper die holder, a female die, a fixing plate and a push rod, wherein the upper die holder is fixedly connected with the upper die plate, the fixing plate is fixed below the upper die holder through a fastening piece, the cutter plate is embedded in the bottom of the female die and is fixedly connected with the female die, one end of the push rod is in threaded connection with a material returning block, the other end of the push rod is movably arranged in a push rod mounting limiting hole formed in the upper die holder in a penetrating mode, and the material pressing column is fixed below the upper die holder through threaded connecti