CN112170525A

CN112170525A - Hot extrusion die for producing aluminum alloy section

Info

Publication number: CN112170525A
Application number: CN202011090484.5A
Authority: CN
Inventors: 宋彬彬; 孙海阔; 王少博
Original assignee: Anhui Jinlan Jinying Aluminium Co Ltd
Current assignee: Anhui Jinlan Jinying Aluminium Co Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-01-05

Abstract

The invention discloses a hot extrusion die for producing aluminum alloy sections, which comprises a fixed frame, an upper die and a lower die, wherein one end of a hydraulic telescopic rod is fixedly arranged on the lower surface of the top wall of the fixed frame, a hydraulic cylinder is arranged on one side of the hydraulic telescopic rod, the bottom end of the hydraulic telescopic rod is fixedly connected with the upper end surface of the upper die, an upper die core is arranged below the upper die, a lower die core is arranged below the upper die core, an extrusion opening is arranged between the upper die core and the lower die core, a lower die is arranged below the lower die core, slide blocks are fixedly arranged on two sides of the upper die and the lower die, the slide blocks are in sliding connection with slide grooves, the upper die core and the lower die core can be disassembled and replaced by screwing or loosening nuts, concave counter bores are arranged on through holes on the opposite sides of the upper die, the replacement of the entire mold is avoided.

Description

Hot extrusion die for producing aluminum alloy section

Technical Field

The invention relates to the technical field of extrusion dies, in particular to a hot extrusion die for producing aluminum alloy sections.

Background

Hot extrusion is extrusion by heating a metal material to a hot forging temperature, that is, extrusion by heating a billet to a temperature higher than the recrystallization temperature of the metal before extrusion.

The hot extrusion die of current production aluminum alloy ex-trusions mainly comprises last mould and lower mould two parts, because the blank must heat to the hot forging temperature and extrude, the mould can become low owing to the intensity of being heated this moment, influence the size precision and the roughness of extruded article easily, make the extrusion effect worsen, the mould can receive considerable pressure at extrusion process moreover, the contact surface between moulding-die and the extruded article is impaired easily, the mould of whole change, the cost is very high, and convenient inadequately.

Therefore, a hot extrusion die for producing aluminum alloy sections is provided for solving the problems.

Disclosure of Invention

The invention aims to provide a hot extrusion die for producing an aluminum alloy section so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a production aluminum alloy ex-trusions hot extrusion die, includes fixed frame, last mould and lower mould, fixed surface installs hydraulic telescoping rod one end under the fixed frame roof, hydraulic telescoping rod one side is equipped with the pneumatic cylinder, the last mould up end of hydraulic telescoping rod bottom fixed connection, it is equipped with the mold core to go up the mold core below, it is equipped with down the mold core to go up the mold core below, it is equipped with the extrusion opening with the lower mold core centre to go up the mold core, lower mold core below is equipped with the lower mould, it has the slider to go up mould and lower mould both sides fixed mounting, slider sliding connection spout, the fixed frame both sides inner wall of spout.

Preferably, the upper die core, the lower die and the bottom wall of the fixing frame are provided with through holes in a penetrating manner, bolts penetrate through the through holes, and one end of each bolt is in threaded connection with a nut.

Preferably, a recessed counter bore is arranged on a through hole on the opposite side of the upper mold core and the lower mold core.

Preferably, the cross section of the extrusion opening is I-shaped.

Preferably, the upper mold core and the lower mold core are made of tungsten steel, and the middle parts of the upper mold core and the lower mold core are raised.

Preferably, the sliding block is provided with a limiting protrusion, and the sliding block is matched with the sliding groove.

Compared with the prior art, the invention has the beneficial effects that: the upper mold core and the lower mold core are made of tungsten steel, so that the strength at high temperature can be better maintained, and the service life of the mold core is prolonged;

can dismantle the change through screwing or loosening the nut, go up the mould core and lower mould core, go up and be equipped with recessed counter bore on mould core and the lower mould core relative side's the through-hole, can make the bolt head sink as in the counter bore, avoid it to hinder and go up mould core and lower mould core compound die, guarantee its compound die precision and compactness, avoid the change to whole mould, change mould core and lower mould core easy operation in addition, it is very convenient, be favorable to reduce cost and improve work efficiency.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view showing the divergence of the upper and lower dies of the present invention.

In the figure: 1. a fixing frame; 2. a chute; 3. an upper die; 4. a lower die; 5. a fixed seat; 6. a lower mold core; 7. an upper mold core; 8. a slider; 9. a hydraulic cylinder; 10. a hydraulic telescopic rod; 11. a through hole; 12. a nut; 13. a bolt; 14. an extrusion port.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a hot extrusion die for producing aluminum alloy sections comprises a fixed frame 1, an upper die 3 and a lower die 4, wherein one end of a hydraulic telescopic rod 10 is fixedly arranged on the lower surface of the top wall of the fixed frame 1 and can play a role in fixing, and a hydraulic cylinder 9 is arranged on one side of the hydraulic telescopic rod 10 and can control the hydraulic telescopic rod 10 to do telescopic motion through the hydraulic cylinder 9;

the bottom end of a hydraulic telescopic rod 10 is fixedly connected with the upper end surface of an upper die 3, the hydraulic telescopic rod 10 can move the upper die 3, an upper die core 7 is arranged below the upper die 3, a lower die core 6 is arranged below the upper die core 7, an extrusion opening 14 is formed between the upper die core 7 and the lower die core 6, and an aluminum alloy section can be extruded from the heated blank according to the cross section shape of the extrusion opening 14 through the extrusion opening 14;

a lower die 4 is arranged below the lower die core 6, sliding blocks 8 are fixedly arranged on two sides of the upper die 3 and the lower die 4, the sliding blocks 8 are connected with the sliding groove 2 in a sliding mode, and the sliding blocks 8 can slide up and down in the sliding groove 2, so that the upper die 3 and the lower die 4 can be prevented from transversely shifting to cause the deformation of the section;

the sliding chute 2 is fixedly connected with the inner walls of two sides of the fixed frame 1 and can play a role in fixing, and the top and the bottom of the fixed frame 1 are fixedly connected with the mounting seats 5, so that the device can be fixed at the discharging position of the hot press, namely the position of a die opening;

through holes 11 penetrate through the bottom walls of the upper die 3, the upper die core 7, the lower die core 6, the lower die 4 and the fixed frame 1, bolts 13 penetrate through the through holes 11, the upper die 3 and the upper die core 7 can be fixed to form a whole, the lower die core 6, the lower die 4 and the fixed frame 1 are fixed together to form a whole, one end of each bottom wall bolt 13 is in threaded connection with a nut 12, and the bolts 13 can be disassembled through the nuts 12, so that the upper die core 7 and the lower die core 6 can be replaced conveniently;

a concave counter bore is arranged on the through hole 11 at the opposite side of the upper mold core 7 and the lower mold core 6, so that the head of the bolt 13 can be sunk into the counter bore, and the upper mold core 7 and the lower mold core 67 are prevented from being obstructed by the bolt;

the section of the extrusion opening 14 is I-shaped, and an I-shaped aluminum alloy section can be extruded;

the upper mold core 7 and the lower mold core 6 are made of tungsten steel, so that the strength at high temperature can be better kept, the service life of the mold cores is prolonged, the middle parts of the upper mold core 7 and the lower mold core 6 are raised, the upper mold core 7 and the lower mold core 6 are conveniently attached to the upper mold 3 and the lower mold 4, and the fixation is convenient;

slider 8 is equipped with spacing protrusion, and slider 8 cooperatees with spout 2, can avoid slider 8 to take place about the skew, strengthens 1 its stability.

The working principle is as follows: when the device is used, the device is fixed at the discharging position of a hot press, namely the position of a die opening, a bolt 13 penetrates through the through hole 11 to fix the upper die 3 and the upper die core 7, the bolt 13 penetrates through the through hole 11 to fix the lower die core 6, the lower die 4 and the fixing frame 1 together, the bolt 13 can be fixed through the nut 12, the upper die core 7 and the lower die core 6 can be disassembled and replaced by screwing or loosening the nut, the head of the bolt 13 can sink into the counter bore to avoid hindering the upper die core 7 and the lower die core 6 from being matched, the hydraulic telescopic rod 10 is controlled to move downwards through the hydraulic cylinder 9 to drive the upper die 3 to move downwards to match the upper die core 7 and the lower die core 6, and the whole disassembling and installing are finished, so that the operation is very convenient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a production aluminum alloy ex-trusions hot extrusion die, includes fixed frame (1), goes up mould (3) and lower mould (4), its characterized in that: fixed surface installs hydraulic telescoping rod (10) one end under fixed frame (1) roof, hydraulic telescoping rod (10) one side is equipped with pneumatic cylinder (9), mould (3) up end on hydraulic telescoping rod (10) bottom fixed connection, it is equipped with mould core (7) to go up mould core (3) below, it is equipped with down mould core (6) to go up mould core (7) below, it extrudes mouth (14) to go up mould core (7) and be equipped with in the middle of lower mould core (6), mould core (6) below is equipped with lower mould (4) down, it has slider (8) to go up mould (3) and lower mould (4) both sides fixed mounting, slider (8) sliding connection spout (2), the fixed frame (1) both sides inner wall of spout (2) fixed connection, fixed frame (1) top and bottom fixedly connected with mount pad (5).

2. The hot extrusion die for producing the aluminum alloy profile according to claim 1, wherein: go up mould (3), go up mold core (7), lower mold core (6), lower mould (4) and fixed frame (1) diapire and run through on have through hole (11), there is bolt (13) to pass in through hole (11), bolt (13) one end threaded connection nut (12).

3. The hot extrusion die for producing the aluminum alloy profile according to claim 2, wherein: and a concave counter bore is arranged on the through hole (11) at the opposite side of the upper mold core (7) and the lower mold core (6).

4. The hot extrusion die for producing the aluminum alloy profile according to claim 1, wherein: the cross section of the extrusion opening (14) is I-shaped.

5. The hot extrusion die for producing the aluminum alloy profile according to claim 1, wherein: the upper mold core (7) and the lower mold core (6) are made of tungsten steel, and the middle parts of the upper mold core (7) and the lower mold core (6) are raised.

6. The hot extrusion die for producing the aluminum alloy profile according to claim 1, wherein: the sliding block (8) is provided with a limiting protrusion, and the sliding block (8) is matched with the sliding groove (2).