阅读说明：本技术 铝型材及其加工方法 (Aluminum profile and processing method thereof ) 是由 徐云 陈润德 李济余 于 2019-09-23 设计创作，主要内容包括：本发明公开了一种铝型材及其加工方法,加工方法包括以下步骤：S1、提供铝型材；铝型材包括相对的第一表面和第二表面,第一表面分布有多个相间隔平行的第一凸筋；S2、采用冲床压住铝型材,在铝型材第一表面上的第一凸筋上选出多个间隔分布的冲压点；S3、采用冲头对冲压点进行冲压,使冲压点下凹并凸出铝型材的第二表面,形成凸台；S4、对铝型材的第一表面进行冲铣；S5、按预定形状对铝型材的四周边缘进行冲切；S6、在铝型材上冲孔,铝型材上形成有多个分别贯穿凸台至第一表面的第一通孔；S7、采用多头攻牙机对第一通孔进行攻牙。本发明的铝型材的加工方法,增加打凸、切边、冲孔等冲压工艺,代替现有的全CNC加工工艺,生产效率提高50％。(The invention discloses an aluminum profile and a processing method thereof, wherein the processing method comprises the following steps: s1, providing an aluminum profile; the aluminum profile comprises a first surface and a second surface which are opposite, and a plurality of first convex ribs which are parallel at intervals are distributed on the first surface; s2, pressing the aluminum profile by using a punch, and selecting a plurality of punching points which are distributed at intervals on the first convex rib on the first surface of the aluminum profile; s3, stamping the stamping point by using a punch, so that the stamping point is concave and protrudes out of the second surface of the aluminum profile to form a boss; s4, performing punching and milling on the first surface of the aluminum profile; s5, punching the peripheral edge of the aluminum profile according to a preset shape; s6, punching a hole in an aluminum section, wherein a plurality of first through holes respectively penetrating through the boss to the first surface are formed in the aluminum section; and S7, tapping the first through hole by adopting a multi-head tapping machine. According to the processing method of the aluminum profile, stamping processes such as embossing, trimming and punching are added to replace the existing full CNC processing process, and the production efficiency is improved by 50%.)

1. The processing method of the aluminum profile is characterized by comprising the following steps of:

s1, providing an aluminum profile; the aluminum profile comprises a first surface and a second surface which are opposite, and a plurality of first convex ribs which are parallel at intervals are distributed on the first surface;

s2, pressing the aluminum profile by using a punch, and selecting a plurality of punching points distributed at intervals on the first convex rib on the first surface of the aluminum profile;

s3, stamping the stamping point by using a stamping head, so that the stamping point is concave and convex to the second surface of the aluminum profile, and a boss is formed on the second surface;

s4, performing punching and milling on the first surface of the aluminum profile, and removing the first convex rib;

s5, punching the peripheral edge of the aluminum profile according to a preset shape;

s6, punching holes in the aluminum profile, wherein a plurality of first through holes which penetrate through the bosses to the first surface are formed in the aluminum profile;

s7, tapping the first through hole by using a multi-head tapping machine to obtain the processed aluminum profile.

2. The aluminum profile processing method according to claim 1, wherein in step S4, during the punching, the first ribs on the first surface are milled flat, and a convex platform and a hole groove on the platform are further milled on the first surface.

3. The processing method of the aluminum profile as claimed in claim 2, wherein the step S6 includes:

s6.1, punching holes on the aluminum profile for the first time to form a plurality of first through holes which penetrate through the bosses to the first surface respectively and a plurality of second through holes which penetrate through the hole grooves to the first surface;

s6.2, punching the aluminum profile for the second time to form a plurality of third through holes penetrating through the second surface and the first surface.

4. The processing method of the aluminum profile according to claim 3, wherein in step S1, a plurality of second ribs which are parallel at intervals are distributed on the second surface of the aluminum profile, and the second ribs and the first ribs are staggered with each other;

in step S6.2, the third through holes are distributed between the second ribs.

5. The processing method of the aluminum profile according to claim 1, wherein the predetermined shape is non-linear.

6. The aluminum profile machining method according to any one of claims 1 to 5, further comprising deburring the first through hole after step S6: and pressing a pressing stabbing member with a conical top into the first through hole from one end to the other end of the first through hole in a direction opposite to the punching direction.

7. The processing method of the aluminum profile according to claim 6, wherein after the burrs are removed, the aperture of the first through hole is gradually increased from one end to the opposite end.

8. The processing method of the aluminum profile according to claim 6, wherein the diameter of the roughening piercing member is 0.5mm larger than the diameter of the first through hole.

9. The processing method of aluminum profiles as set forth in claim 6, wherein the bevel angle of the tapered top of the burring stabber is 30 °.

10. An aluminum profile characterized by being produced by the processing method of the aluminum profile according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of section bar processing, in particular to an aluminum section bar and a processing method thereof.

Background

The fifth generation mobile communication (5G) oriented in 2020 and the future has become a global research and development hotspot. The 5G is a new generation mobile communication system developed according to the mobile communication demand in 2020, and according to the development rule of mobile communication, the 5G has an ultra-high spectrum utilization rate and energy efficiency, and is improved by one order of magnitude or more in transmission rate, resource utilization rate and other aspects compared with 4G mobile communication, and the wireless coverage performance, transmission delay, system security and user experience of the system are also remarkably improved.

The aluminum profile is a very light metal, has good heat conduction and electric conductivity, and has excellent atmospheric corrosion resistance because a compact oxidation protection film is easily formed on the surface of the aluminum profile and can prevent the internal metal from being further oxidized, so that the aluminum profile is widely applied to communication base stations and can be well applied to 5G communication base stations.

At present, aluminum profiles at home and abroad are all processed by CNC (numerical control machine), so that more working hours are needed, and the improvement of the production efficiency is limited to a certain extent.

Disclosure of Invention

The invention aims to provide an aluminum profile processing method and a manufactured aluminum profile, which can reduce the working hours and improve the efficiency and the quality.

The technical scheme adopted by the invention for solving the technical problems is as follows: the processing method of the aluminum profile comprises the following steps:

s1, providing an aluminum profile; the aluminum profile comprises a first surface and a second surface which are opposite, and a plurality of first convex ribs which are parallel at intervals are distributed on the first surface;

s2, pressing the aluminum profile by using a punch, and selecting a plurality of punching points distributed at intervals on the first convex rib on the first surface of the aluminum profile;

s3, stamping the stamping point by using a stamping head, so that the stamping point is concave and convex to the second surface of the aluminum profile, and a boss is formed on the second surface;

s4, performing punching and milling on the first surface of the aluminum profile, and removing the first convex rib;

s5, punching the peripheral edge of the aluminum profile according to a preset shape;

s6, punching holes in the aluminum profile, wherein a plurality of first through holes which penetrate through the bosses to the first surface are formed in the aluminum profile; (the lower part is described)

S7, tapping the first through hole by using a multi-head tapping machine to obtain the processed aluminum profile.

Preferably, in step S4, during the punching, the first rib on the first surface is milled flat, and a convex platform and a hole groove on the platform are also milled on the first surface.

Preferably, the step S6 includes:

s6.1, punching holes on the aluminum profile for the first time to form a plurality of first through holes which penetrate through the bosses to the first surface respectively and a plurality of second through holes which penetrate through the hole grooves to the first surface;

s6.2, punching the aluminum profile for the second time to form a plurality of third through holes penetrating through the second surface and the first surface.

Preferably, in step S1, a plurality of second ribs parallel to each other are distributed on a second surface of the aluminum profile, and the second ribs and the first ribs are staggered with each other;

in step S6.2, the third through holes are distributed between the second ribs.

Preferably, the predetermined shape is non-linear.

Preferably, after step S6, the method further includes deburring the first through hole: and pressing a pressing stabbing member with a conical top into the first through hole from one end to the other end of the first through hole in a direction opposite to the punching direction.

Preferably, after the burrs are removed, the aperture of the first through hole gradually increases from one end to the opposite end.

Preferably, the diameter of the press-hair stabbing piece is 0.5mm larger than the aperture of the first through hole.

Preferably, the bevel angle of the conical top of the hair-pressing stabbing piece is 30 °.

The invention also provides an aluminum profile which is prepared by the processing method of any one of the aluminum profiles.

According to the processing method of the aluminum profile, stamping processes such as embossing, trimming and punching are added to replace the existing full CNC (computer numerical control) processing process (the working time is about 1h/PCS), and the production efficiency is improved by 50%.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic view of a processing process of a processing method of an aluminum profile according to an embodiment of the invention;

fig. 2 is a schematic structural view of a shedding plate in the method for processing an aluminum profile according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a lower die in the processing method of the aluminum profile according to the embodiment of the invention;

fig. 4 is a schematic structural diagram of a deburring piercing member in the method for processing an aluminum profile according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of the aluminum profile obtained by the processing method of the invention.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the processing method of the aluminum profile according to an embodiment of the present invention includes the following steps:

s1, providing the aluminum profile 10.

As shown in fig. 1 (1), the aluminum profile 10 includes a first surface 11 and a second surface 12 which are opposite. The first surface 11 is distributed with a plurality of first ribs 101 which are parallel at intervals. The second surface 12 may have a plurality of spaced parallel second ribs 102, and the second ribs 102 may be offset from the first ribs 101.

In this embodiment, the width of the first rib 101 is larger than the width of the second rib 102.

S2, pressing the aluminum profile 10 with a 200 ton press, and selecting a plurality of punching points spaced apart from each other on the first ribs 101 on the first surface 11 of the aluminum profile 10.

And S3, stamping the stamping point by using a punch, so that the stamping point is concave and convex to the second surface 12 of the aluminum profile 10, and the boss 103 is formed on the second surface 12.

As shown in fig. 1 (2), in the present embodiment, five punching points are selected on each first rib 101, and five bosses 103 are formed by punching; the five bosses 103 are non-uniformly spaced. The stamping points on all the first ribs 101 may be the same or different.

And S4, performing punching and milling on the first surface of the aluminum profile 10, and removing the first convex rib 101.

As shown in (3) of fig. 1, during the punching, the first rib 101 on the first surface 11 is milled flat, and a convex platform 13 and a hole groove 14 on the platform 13 are also milled on the first surface 11. The slots 14 may be distributed according to product requirements and may be one or more of circular and oval in shape.

In addition, a step 15 is milled on the first surface 11 to space the platform 13, and the step 15 has a width much smaller than the platform 13 and a height equal to the height of the platform 13.

S5, die-cutting the peripheral edge of the aluminum profile 10 in a predetermined shape.

Specifically, before punching, the aluminum profile 10 is positioned on the lower die with the second surface 12 facing upward; a cutter 20 is installed at the upper die. As shown in fig. 1 (4), a plurality of cutters 20 are spaced on the upper die along the outer circumference of the aluminum profile 10. When punching, the upper die moves towards the lower die to drive the cutter 20 to move downwards to punch the peripheral edge of the aluminum profile 10, so as to obtain a non-linear preset shape. Each side of the die-cut aluminum profile 10 has at least one concave notch 16, as shown in fig. 1 (5).

S6, punching the aluminum profile 10, wherein a plurality of first through holes 104 are formed in the aluminum profile 10, and the first through holes 104 penetrate the bosses 103 to the first surface 11 of the aluminum profile 10, as shown in (4) in fig. 1.

The depth of the first through hole 104 is the sum of the thickness between the second surface 12 and the first surface 11 of the aluminum profile 10 and the thickness of the boss 103.

The relative position degree and the internal smoothness of the holes are ensured by adding cooling liquid (heat dissipation oil) in the punching process. The punch used for punching is made of carbon tool steel, preferably SKD11, so that the shear strength is improved, and meanwhile, the adhesion of aluminum scraps and aluminum powder is effectively avoided or reduced.

Specifically, the step S6 includes:

s6.1, performing a first punching on the aluminum profile 10 to form a plurality of first through holes 104 respectively penetrating the bosses 103 to the first surface 11 and a plurality of second through holes 105 respectively penetrating the through holes 104 to the first surface 11.

And S6.2, punching the aluminum profile 10 for the second time to form a plurality of third through holes 106 penetrating through the second surface 12 and the first surface 11, as shown in (4) in FIG. 1.

In this embodiment, the third through holes 106 are distributed between the second ribs 102.

Specifically, as shown in fig. 2 and 3, in step S6.2, before the second punching, a stripper plate 40 is placed on the lower die 50, an elastic stripper structure 32 is provided on the upper die 30 and can act on the stripper plate 40, and the aluminum profile 10 is placed between the lower die 50 and the stripper plate 40. When punching for the second time, the spring force of the elastic stripping structure 32 acts on the stripping plate 40, the stripping plate 40 compresses the aluminum profile 10, and the punch 31 punches the aluminum profile 10 through the stripping plate 40.

The stripper plate 40 is internally provided with a stripper plate double-layer insert, the stripper plate double-layer insert comprises a stripper plate upper-layer insert 41 and a stripper plate lower-layer insert 42 which are vertically matched, and the stripper plate upper-layer insert 41 and the stripper plate lower-layer insert 42 are respectively provided with an upper-layer through hole 410 and a lower-layer through hole 420 for the punch 31 to pass through; the upper via 410 and the lower via 420 communicate with each other. The stripper lower insert 42 serves to protect the head (working portion) of the punch 31, and the stripper upper insert 41 serves to protect the upper portion of the connecting head. The lower via hole 420 is connected with the first end 421 of the upper via hole 410 and the upper via hole 410, and the upper part of the punch 31 can penetrate into the upper via hole 410, and the second end 422 of the lower via hole 420, which is far away from the upper via hole 410, is arranged corresponding to the head of the punch 31 and penetrates through the head, so that the head is protected. The second end 422 has an inner diameter that is smaller than the inner diameter of the first end 421.

The lower die 50 is provided with a lower die double-layer insert which is opposite to the stripper double-layer insert and comprises a lower die upper layer insert 51 and a lower die lower layer insert 52 which are matched up and down. The lower die upper layer insert 51 and the lower die lower layer insert 52 are respectively provided with an upper layer through hole 510 and a lower layer through hole 520, the upper layer through hole 510 comprises a first end 511 with a smaller inner diameter and a second end 512 with a larger inner diameter, the first end 511 is arranged corresponding to the head of the punch 31, and the head of the punch 31 can penetrate into the first end 511 after penetrating through the aluminum profile 10. The second end 510 of upper through-hole 510 meets the intercommunication with lower floor's through-hole 520, and the internal diameter of lower floor's through-hole 520 is greater than the internal diameter of second end 510, and its inner wall is equipped with the gas pocket 521 that runs through lower mould lower floor income son periphery side for connect air pump equipment and blow in lower floor's through-hole 520, form the negative pressure in lower mould lower floor income son 52, the waste material is automatic down to fall, prevents the stifled hole of waste material, guarantees that the punching press is continuous, high efficiency.

In addition, after step S6, removing burrs from the first through hole 104 is further included, which specifically includes the following operations:

as shown in fig. 4, the roughening stabber 60 is pressed into the first through hole 104 from one end of the first through hole 104 to the other end in the opposite direction to the punching direction, for example, from the first surface 11 toward the second surface 12 of the aluminum profile 10 on the lower die.

The top of the roughening piercing member 60 is tapered, and after the burrs are removed, the aperture of the first through hole 104 is gradually increased from one end to the opposite end. The diameter of the roughening piercing member 60 is 0.5mm larger than the diameter of the first through-hole 104, so that the diameter of the first through-hole 104 near the first surface 11 is also enlarged after deburring.

Alternatively, the beveled angle of the tapered top of the sanding stabber 60 is 30 °.

S7, tapping the first through hole 104 by using a multi-head tapping machine to obtain the processed aluminum profile 10', as shown in (5) in fig. 1.

According to the number of the tapping heads of the multi-head tapping machine, tapping of a plurality of first through holes 104 corresponding to the number can be performed at one time, and tapping efficiency is improved. The tapped first through hole 104 is internally threaded for fastener engagement.

In step S7, the third through hole 106 located at the edge of the aluminum profile 10 'is tapped, as shown in (5) in fig. 1, in this embodiment, two opposite edges of the platform 13 are punched by the cutter 20 to protrude from other portions of the edge of the aluminum profile 10', the two opposite edges of the platform 13 are respectively punched to form the third through hole 106, and each edge may be formed with two third through holes 106 as shown in the figure. The write third via 106 is tapped.

According to the needs, the second through hole 105 and other third through holes 106 can be tapped, and a multi-head tapping machine is adopted for tapping, so that the efficiency is high.

The aluminum profile prepared by the processing method is suitable for 5G communication base stations. As shown in fig. 1 (5), the peripheral edge of the aluminum profile 10' is non-linear, and each side has at least one concave notch 16. Referring to fig. 1 and 5, the aluminum profile 10' has a plurality of second ribs 102 spaced in parallel and a plurality of bosses 103 on one side, and a raised platform 13 and a hole 14 on the platform 13 on the other side. A plurality of through holes are distributed on the aluminum profile 10', and comprise a first through hole 104 penetrating through the boss 103, a second through hole 105 penetrating through the hole groove 104, and a third through hole 106 penetrating through two opposite surfaces of the aluminum profile 10'; the third through holes 106 are distributed between the second ribs 102.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.