Aluminum alloy extrusion molding die

Abstract

The utility model discloses an aluminum alloy extrusion forming die, including upper die, lower die and a plurality of guide body, and guide body is located between upper die and lower die, upper die is equipped with the coaxial distribution of upper die center body, upper die inner ring and upper die outer ring, and there are a plurality of upper die inboard pilot hole with uniform distribution between upper die center body and upper die inner ring, and there are a plurality of upper die outboard pilot hole with uniform distribution between upper die inner ring and upper die outer ring, lower die has a plurality of lower die guide slot with uniform distribution, and lower die guide slot is communicated with lower die pilot hole, and upper die inboard pilot hole is directly opposite part's lower die guide slot, and upper die outboard pilot hole is directly opposite two lower die guide slots simultaneously. The aluminum alloy extrusion forming die disclosed by the utility model has the beneficial effect that it avoids the defects of uneven filling or cavity caused by directly falling the aluminum alloy blank in plastic state into lower die pilot hole.

Description

Technical Field

[0001] This utility model belongs to the field of molds, and specifically relates to an aluminum alloy extrusion molding mold. Background Technology

[0002] The utility model patent with publication number CN201094973Y and subject name "aluminum alloy hot extrusion forming die with a large tongue core" has IPC classification number B21C25 / 02. Its technical solution discloses "aluminum alloy hot extrusion forming die with a large tongue core, including an upper die, a die core and a middle die. The upper die and the die core are integrated. The upper die feed end is connected to a sloping flow divider bridge. The sloping flow divider bridge opens fan-shaped sloping flow divider holes around the die core according to the shape of the die hole. The adjacent sloping flow divider holes are sloped and connected to the die core through the sloping surface."

[0003] Therefore, the above utility model patents have disclosed one technical solution for the hot extrusion forming die of aluminum alloy with a large tongue core. However, the technical solution disclosed in the above utility model patents focuses on reducing the extrusion pressure during the extrusion process and increasing the strength of the inclined flow divider bridge to prevent the bridge from breaking. However, it does not further solve the problems of uneven filling or voids caused by the aluminum alloy billet in a plastic state falling directly into the guide hole of the lower die, and further improvements are needed. Utility Model Content

[0004] This utility model addresses the shortcomings of the existing technology by providing an aluminum alloy extrusion molding die.

[0005] This utility model adopts the following technical solution: an aluminum alloy extrusion molding die, including an upper die, a lower die, and multiple guide bodies, wherein the guide bodies are located between the upper die and the lower die, wherein:

[0006] The upper mold is provided with a coaxially distributed upper mold center body, upper mold inner ring and upper mold outer ring. There are multiple upper mold inner guide holes evenly distributed between the upper mold center body and the upper mold inner ring, and there are multiple upper mold outer guide holes evenly distributed between the upper mold inner ring and the upper mold outer ring.

[0007] The lower mold has multiple evenly distributed lower mold guide grooves, which are connected to the lower mold guide holes. The inner guide hole of the upper mold is directly opposite a portion of the lower mold guide groove, and the outer guide hole of the upper mold is directly opposite two adjacent lower mold guide grooves.

[0008] As a preferred technical solution to the above technical solutions, the guide body is provided with a guide body cone and a guide body column, and the guide body cone and the guide body column are integrally formed.

[0009] As a preferred embodiment of the above technical solution, the conical part of the guide body is located in the lower mold guide groove and is fixedly connected to the upper mold, part of the column part of the guide body is located in the lower mold guide groove, and the remaining part of the column part of the guide body is located in the lower mold guide hole, with a guide body gap between the column part of the guide body and the lower mold guide hole.

[0010] As a preferred technical solution to the above technical solutions, an inner connecting part of the upper mold is provided between two adjacent inner guide holes of the upper mold, and the inner connecting part of the upper mold is integrally formed with the center body of the upper mold and the inner ring of the upper mold.

[0011] As a preferred technical solution to the above technical solutions, an outer connecting part of the upper mold is provided between two adjacent outer guide holes of the upper mold, and the outer connecting part of the upper mold is integrally formed with the inner ring and the outer ring of the upper mold.

[0012] The aluminum alloy extrusion die disclosed in this utility model has the following advantages: by optimizing the specific layout of the inner and outer guide holes of the upper die (such as the outer guide hole of the upper die being directly opposite two adjacent guide grooves of the lower die), and the design of the cone and column parts of the guide body (a gap is formed between the column part of the guide body and the guide hole of the lower die), the aluminum alloy billet in a plastic state must first fully fill the guide groove of the lower die, and then be extruded into the guide hole of the lower die through the gap of the guide body, thus avoiding defects such as uneven filling or voids caused by the aluminum alloy billet in a plastic state falling directly into the guide hole of the lower die. Attached Figure Description

[0013] Figure 1 This is a perspective view of this application.

[0014] Figure 2 This is a three-dimensional view from another perspective of this application.

[0015] Figure 3 This is a top view of this application.

[0016] Figure 4 It is along Figure 3 A three-dimensional sectional view along the AA direction.

[0017] Figure 5 This is a perspective view of the upper mold and guide body of this application.

[0018] Figure 6 This is a perspective view of the upper mold and guide body of this application from another angle.

[0019] Figure 7 This is a perspective view of the lower mold of this application.

[0020] Figure 8 This is a perspective view of the lower mold of this application from another angle.

[0021] The reference numerals in the attached drawings include: 100-upper mold; 110-center body of upper mold; 120-inner ring of upper mold; 130-outer ring of upper mold; 140-inner guide hole of upper mold; 150-outer guide hole of upper mold; 160-inner connecting part of upper mold; 170-outer connecting part of upper mold; 200-lower mold; 210-lower mold guide groove; 220-lower mold guide hole; 300-guide body; 301-guide body gap; 310-conical part of guide body; 320-pillar part of guide body. Detailed Implementation

[0022] This utility model discloses an aluminum alloy extrusion molding die. The following description, in conjunction with a preferred embodiment (Example 1), is shown in the accompanying drawings. Figures 1 to 8 The specific embodiments of this utility model will be further described below.

[0023] See attached diagram. Figures 1 to 8 , Figures 1 to 4 The aluminum alloy extrusion die is shown from different perspectives. Figure 5 and Figure 6 The upper mold and guide body are shown from different perspectives. Figure 7 and Figure 8 The lower mold is shown from different perspectives.

[0024] Example 1.

[0025] Preferably, the aluminum alloy extrusion die includes an upper die 100, a lower die 200, and a plurality of guide bodies 300, wherein the guide bodies 300 are located between the upper die 100 and the lower die 200, wherein:

[0026] The upper mold 100 is provided with an upper mold center body 110, an upper mold inner ring 120 and an upper mold outer ring 130 coaxially distributed. There are a plurality of upper mold inner guide holes 140 (preferably eight upper mold inner guide holes 140) evenly distributed between the upper mold center body 110 and the upper mold inner ring 120. There are a plurality of upper mold outer guide holes 150 (preferably eight upper mold outer guide holes 150) evenly distributed between the upper mold inner ring 120 and the upper mold outer ring 130.

[0027] The lower mold 200 has a plurality of evenly distributed lower mold guide grooves 210 (preferably eight lower mold guide grooves 210), which communicate with the lower mold guide holes 220. The inner ring 120 of the upper mold exactly covers (all) the lower mold guide holes 220 and (all) the guide bodies 300. The inner guide hole 140 of the upper mold is directly opposite to a portion of the lower mold guide grooves 210, and the outer guide hole 150 of the upper mold is directly opposite to two adjacent lower mold guide grooves 210 (specifically, the outer guide hole 150 of the upper mold is directly opposite to a portion of one of the lower mold guide grooves 210, and this upper mold...). The outer guide hole 150 is simultaneously aligned with a portion of another lower die guide groove 210 adjacent to the upper die guide groove 210, forming the effect that the same upper die outer guide hole 150 is simultaneously aligned with two adjacent lower die guide grooves 210. This ensures that the aluminum alloy billet in a plastic state cannot fall directly into the lower die guide hole 220 from either the upper die inner guide hole 140 or the upper die outer guide hole 150. Instead, it must first contact and fully fill the lower die guide groove 210 before being squeezed into the lower die guide hole 220, thereby improving the forming quality of the aluminum alloy workpiece.

[0028] The guide body 300 is provided with a guide body cone portion 310 and a guide body column portion 320, and the guide body cone portion 310 and the guide body column portion 320 are integrally formed.

[0029] The guide cone portion 310 is located in the lower die guide groove 210 and is fixedly connected to the upper die 100. Part of the guide pillar portion 320 is located in the lower die guide groove 210, and the remaining part of the guide pillar portion 320 is located in the lower die guide hole 220. There is a guide gap 301 between the guide pillar portion 320 and the lower die guide hole 220. This allows the aluminum alloy billet in a plastic state to be squeezed into the lower die guide hole 220 only through the guide gap 301.

[0030] Among them, an inner connecting part 160 of the upper mold is provided between two adjacent inner guide holes 140 of the upper mold, and the inner connecting part 160 of the upper mold is integrally formed with the upper mold center body 110 and the upper mold inner ring 120.

[0031] Among them, an outer connecting part 170 of the upper mold is provided between two adjacent outer guide holes 150 of the upper mold, and the outer connecting part 170 of the upper mold is integrally formed with the inner ring 120 and the outer ring 130 of the upper mold.

[0032] It is worth mentioning that the specific material and other technical features of the aluminum alloy extrusion molding die involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement of these technical features can be conventionally selected in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0033] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An aluminum alloy extrusion die, characterized in that, It includes an upper mold, a lower mold, and multiple guide bodies, with the guide bodies located between the upper and lower molds, wherein: The upper mold is provided with a coaxially distributed upper mold center body, upper mold inner ring and upper mold outer ring. There are multiple upper mold inner guide holes evenly distributed between the upper mold center body and the upper mold inner ring, and there are multiple upper mold outer guide holes evenly distributed between the upper mold inner ring and the upper mold outer ring. The lower mold has multiple evenly distributed lower mold guide grooves, which are connected to the lower mold guide holes. The inner guide hole of the upper mold is directly opposite a portion of the lower mold guide groove, and the outer guide hole of the upper mold is directly opposite two adjacent lower mold guide grooves.

2. The aluminum alloy extrusion die according to claim 1, characterized in that, The guide body has a guide body cone and a guide body column, which are integrally formed.

3. The aluminum alloy extrusion die according to claim 2, characterized in that, The conical part of the guide body is located in the lower mold guide groove and is fixedly connected to the upper mold. Part of the guide body column is located in the lower mold guide groove, and the remaining part of the guide body column is located in the lower mold guide hole. There is a guide body gap between the guide body column and the lower mold guide hole.

4. The aluminum alloy extrusion die according to claim 1, characterized in that, An inner connecting part of the upper mold is provided between two adjacent inner guide holes of the upper mold. The inner connecting part of the upper mold is integrally formed with the center body of the upper mold and the inner ring of the upper mold.

5. The aluminum alloy extrusion die according to claim 1, characterized in that, An outer connecting part of the upper mold is provided between two adjacent outer guide holes of the upper mold. The outer connecting part of the upper mold is integrally formed with the inner ring and the outer ring of the upper mold.

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