Aluminum alloy profile mold

Abstract

The utility model provides an aluminum alloy profile mold, which is integrally formed and includes a shell, and the upper surface of the shell is provided with three guide grooves, wherein the first guide groove, the second guide groove and the third guide groove are respectively located at the three vertices of a virtual triangle, and the first guide groove, the second guide groove and the third guide groove are connected through a working belt. The utility model optimizes the mold structure to obtain an aluminum alloy profile of a control arm profiling structure, which can reduce one flattening and bending process when manufacturing the control arm, reduce the forging deformation, better suppress the generation of forging coarse grain rings, improve the quality while reducing the production cost, and can ensure the dimensional stability of the aluminum alloy profile product, improve the production efficiency and the product qualification rate.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold processing, and specifically relates to an aluminum alloy profile mold. Background Art

[0002] The automobile suspension system is an important assembly in modern automobiles, which has a great influence on the driving smoothness and handling stability of the automobile. As the guiding and force transmission element of the automobile suspension system, the control arm (also called the swing arm) transmits various forces acting on the wheel to the body, while ensuring that the wheel moves along a certain trajectory. The control arm elastically connects the wheel and the body through a ball joint or a bushing. With the continuous development of the automobile industry, the requirements for lightweight automobiles are getting higher and higher, and the use of lightweight aluminum alloys to replace steel and cast iron in automobiles is becoming more and more widespread.

[0003] Aluminum alloy control arms are key components of automobile suspension systems. They have complex shapes and are usually forged from hot extruded aluminum alloy round bars. Common processing procedures are: round bar cutting → heating → roll forging → flattening and bending → secondary heating → pre-forging, final forging → T6 heat treatment. In this process, the blank needs to be heated twice, which results in a long processing cycle and low efficiency. In addition, the material undergoes multiple forgings, resulting in low utilization and yield rates.

[0004] If the aluminum alloy profile is prefabricated into a control arm profiling structure during the extrusion process, compared with the aluminum alloy round bar profile formed by hot extrusion, the aluminum alloy profile with the profiling structure can reduce one flattening and bending process when manufacturing the control arm, reduce the forging deformation, better inhibit the generation of forging coarse grain rings, improve the quality and reduce the production cost. Therefore, there is an urgent need for an aluminum alloy profile extrusion die for preparing a control arm profiling structure, which can ensure the dimensional stability of the aluminum alloy profile by optimizing the die structure, improve production efficiency and product qualification rate. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an aluminum alloy profile mold. The utility model optimizes the mold structure to produce an aluminum alloy profile with a control arm profiling structure, which can reduce one flattening and bending process when manufacturing the control arm, reduce the forging deformation, better inhibit the generation of forging coarse grain rings, improve quality while reducing production costs, and ensure the dimensional stability of aluminum alloy profile products, improve production efficiency and product qualification rate.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the embodiment of the utility model is:

[0007] An aluminum alloy profile mold is integrally formed and includes a shell. Three guide grooves are arranged on the upper surface of the shell. The first guide groove, the second guide groove and the third guide groove are respectively located on the three vertices of a virtual triangle. The first guide groove, the second guide groove and the third guide groove are connected by a working belt.

[0008] Furthermore, the working belt includes a first end, a second end, a third end and a transition zone, the third end is connected to the first end and the second end respectively through the transition zone, a V-shaped groove is provided between the first end and the second end, an opening of the V-shaped groove is located between the first end and the second end, and the bottom of the V-shaped groove is connected to the transition zone.

[0009] Further, the first guide groove is arranged to surround the third end portion, the second guide groove is arranged to surround the first end portion, and the third guide groove is arranged to surround the second end portion.

[0010] Furthermore, the virtual triangle is one of an equilateral triangle, an isosceles triangle or a scalene triangle.

[0011] Furthermore, the third end is connected to the first end and the second end respectively through a plurality of arc surfaces of unequal diameters, and the free end sizes of the first end and the second end are larger than the size of the connection between the first end, the second end and the transition zone.

[0012] Further, the depth of the second guide groove and / or the third guide groove>the depth of the first guide groove>the depth of the transition zone, and the transition zone is located between the first guide groove and the second guide groove and the third guide groove.

[0013] Furthermore, the depth of the transition zone is H, H=50±2㎜, and there is a 5°±0.5° slope between the inlet of the transition zone and the shell as a boost guide angle;

[0014] The depth of the first guide groove is H+20±2㎜, and there is a 30°±1° slope between the feed port and the shell as a boost guide angle, and it is connected to the working belt inlet;

[0015] The depth of the second guide groove and / or the third guide groove is H+40±2㎜, and there is a 30°±1° slope between the feed port and the shell as a boost guide angle, and the feed port is connected to the working belt inlet.

[0016] Furthermore, the transition zone has a 45°±1° slope transition at the intersection with the second guide groove and / or the third guide groove, and the transition zone has a 30°±1° slope transition at the intersection with the first guide groove.

[0017] The beneficial effects brought by the technical solution provided by the embodiment of the utility model are:

[0018] The mold of the utility model is made of W360 mold steel, which has good toughness, can withstand high impact loads and pressure, has high hardness, and can reach 60-64HRC after heat treatment. The working belt of the extrusion mold made of this material is wear-resistant, and the nitriding process can be avoided. The product size is stable, which can greatly save the mold maintenance cost and has a good effect on maintaining product stability.

[0019] Due to the change in the die guide structure, during the extrusion process, the high-temperature aluminum is continuously pressurized by the extruder, and the aluminum alloy enters the die guide groove. Since the depths of the first guide groove, the second guide groove and the third guide groove are greater than the depth of the transition zone, the aluminum retention in the first guide groove, the second guide groove and the third guide groove is greater, so that the aluminum required at the thin-walled part is fully supplied. The guiding and pressurizing effects of the boost guide angle enable the aluminum alloy liquid to flow better to the thin point working zone, which can ensure the dimensional stability of the aluminum alloy profiles and improve production efficiency and product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the aluminum alloy profile mold in the embodiment of the utility model.

[0021] Figure 2 It is a front view of the aluminum alloy profile mold in the embodiment of the utility model.

[0022] Figure 3 It is a left view of the aluminum alloy profile mold in the embodiment of the utility model.

[0023] Explanation of the reference numerals: 1 - shell; 2 - first guide groove; 3 - second guide groove; 4 - third guide groove; 5 - working belt; 51 - first end; 52 - second end; 53 - third end; 54 - transition zone; 6 - V-shaped groove. DETAILED DESCRIPTION

[0024] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "inside, outside", "up, down", "left, right", etc. are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] Example 1

[0027] like Figure 1-3 As shown, an aluminum alloy profile mold is integrally formed and includes a shell 1. Three guide grooves are arranged on the upper surface of the shell 1. The first guide groove 2, the second guide groove 3 and the third guide groove 4 are respectively located on the three vertices of a virtual triangle. The first guide groove 2, the second guide groove 3 and the third guide groove 4 are connected by a working belt 5.

[0028] The virtual triangle is one of an equilateral triangle, an isosceles triangle or a scalene triangle.

[0029] The working belt 5 includes a first end 51, a second end 52, a third end 53 and a transition zone 54. The third end 53 is connected to the first end 51 and the second end 52 through the transition zone 54 respectively. There is a V-shaped groove 6 between the first end 51 and the second end 52. The opening of the V-shaped groove 6 is located between the first end 51 and the second end 52. The bottom of the V-shaped groove 6 is connected to the transition zone 54.

[0030] The first guide groove 2 is disposed to surround the third end portion 53 , the second guide groove 3 is disposed to surround the first end portion 51 , and the third guide groove 4 is disposed to surround the second end portion 52 .

[0031] The third end 53 is connected to the first end 51 and the second end 52 respectively through a plurality of arc surfaces of unequal diameters. The free end sizes of the first end 51 and the second end 52 are larger than the sizes of the connecting parts between the first end 51, the second end 52 and the third end 53.

[0032] The depth of the second guide groove 3 and / or the third guide groove 4 is greater than the depth of the first guide groove 2 and greater than the depth of the transition zone 54 . The transition zone 54 is located between the first guide groove 2 and the second guide groove 3 and the third guide groove 4 .

[0033] The depth of the transition zone 54 is H, H=50±2㎜, and there is a 5°±0.5° slope between the inlet of the transition zone 54 and the shell 1 as a boost guide angle;

[0034] The depth of the first guide groove 2 is H+20±2㎜, and there is a 30°±1° slope between the feed port and the shell 1 as a boost guide angle, and it is connected to the inlet of the working belt 5;

[0035] The depth of the second guide groove 3 and / or the third guide groove 4 is H+40±2㎜, and there is a 30°±1° slope between the feed port and the shell 1 as a boost guide angle, which is connected to the inlet of the working belt 5.

[0036] The transition zone 54 has a 45°±1° slope transition at the intersection with the second guide groove 3 and the third guide groove 4, and the transition zone 54 has a 30°±1° slope transition at the intersection with the first guide groove 2.

[0037] Due to the change in the die guide structure, during the extrusion process, the high-temperature aluminum is continuously pressurized by the extruder, and the aluminum metal enters the die for guide. Since the depths of the first guide groove 2, the second guide groove 3 and the third guide groove 4 are greater than the depth of the transition zone 54, the aluminum retention in the first guide groove 2, the second guide groove 3 and the third guide groove 4 is greater, so that the aluminum required at the thin wall is fully supplied, and the guiding and pressurizing effects of the boost guide angle enable the aluminum to flow better to the thin point working zone.

[0038] The aluminum alloy profile mold of the utility model is made of W360 mold steel, has good toughness, can withstand high impact loads and pressure, has high hardness, and the heat treatment hardness can reach 60-64HRC. The working belt of the extrusion mold made of this material is wear-resistant and can avoid the nitriding process. The product size is stable, which can greatly save the mold maintenance cost and has a good effect on maintaining product stability.

[0039] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An aluminum alloy profile mold, characterized in that: The aluminum alloy profile mold is integrally formed and comprises a shell (1), wherein the upper surface of the shell (1) is provided with three guide grooves, wherein the first guide groove (2), the second guide groove (3) and the third guide groove (4) are respectively located at three vertices of a virtual triangle, and the first guide groove (2), the second guide groove (3) and the third guide groove (4) are connected via a working belt (5); The working belt (5) comprises a first end (51), a second end (52), a third end (53) and a transition zone (54); the third end (53) is connected to the first end (51) and the second end (52) respectively via the transition zone (54); a V-shaped groove (6) is provided between the first end (51) and the second end (52); an opening of the V-shaped groove (6) is located between the first end (51) and the second end (52); and the bottom of the V-shaped groove (6) is connected to the transition zone (54).

2. The aluminum alloy profile mold according to claim 1, characterized in that: The first guide groove (2) is arranged to surround the third end portion (53), the second guide groove (3) is arranged to surround the first end portion (51), and the third guide groove (4) is arranged to surround the second end portion (52).

3. The aluminum alloy profile mold according to claim 1, characterized in that: The virtual triangle is one of an equilateral triangle, an isosceles triangle or a scalene triangle.

4. The aluminum alloy profile mold according to claim 1, characterized in that: The third end portion (53) is connected to the first end portion (51) and the second end portion (52) respectively via a plurality of arc surfaces of unequal diameters, and the free end dimensions of the first end portion (51) and the second end portion (52) are larger than the dimensions of the connection portion between the first end portion (51), the second end portion (52) and the transition zone (54).

5. The aluminum alloy profile mold according to claim 1, characterized in that: The depth of the second guide groove (3) and / or the third guide groove (4) is greater than the depth of the first guide groove (2) and greater than the depth of the transition zone (54), and the transition zone (54) is located between the first guide groove (2) and the second guide groove (3) and the third guide groove (4).

6. The aluminum alloy profile mold according to claim 1, characterized in that: The depth of the transition zone (54) is H, H=50±2 mm, and a slope of 5°±0.5° is provided between the inlet of the transition zone (54) and the shell (1) as a boost guide angle; The first guide groove (2) has a depth of H+20±2 mm, and has a slope of 30°±1° between the feed port and the shell (1) as a boost guide angle, and is connected to the inlet of the working belt (5); The depth of the second guide groove (3) and / or the third guide groove (4) is H+40±2 mm, and a slope of 30°±1° is provided between the feed port and the shell (1) as a boost guide angle, and the feed port is connected to the inlet of the working belt (5).

7. The aluminum alloy profile mold according to claim 1, characterized in that: The transition zone (54) has a 45°±1° slope transition at the flow guide intersection with the second flow guide groove (3) and / or the third flow guide groove (4), and the transition zone (54) has a 30°±1° slope transition at the flow guide intersection with the first flow guide groove (2).

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