CN203437440U - Seamless square tube extrusion die - Google Patents

Seamless square tube extrusion die Download PDF

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Publication number
CN203437440U
CN203437440U CN201320432286.1U CN201320432286U CN203437440U CN 203437440 U CN203437440 U CN 203437440U CN 201320432286 U CN201320432286 U CN 201320432286U CN 203437440 U CN203437440 U CN 203437440U
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China
Prior art keywords
extrusion
die
square
mandrel
square tube
Prior art date
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Active
Application number
CN201320432286.1U
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Chinese (zh)
Inventor
刘跃堂
刘海堂
王凯岚
李香安
刘洋
刘涛
聂宏静
李秀昭
陈阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaoning Feiyue Tool & Die Co Ltd
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Liaoning Feiyue Tool & Die Co Ltd
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Priority to CN201320432286.1U priority Critical patent/CN203437440U/en
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Abstract

The utility model relates to a seamless square tube extrusion die which consists of an extrusion cylinder, an extrusion pad, an extrusion shaft and an extrusion mandrel rod, wherein a square mandrel head matched with a square die hole of a swage die is arranged at the front end of the extrusion mandrel rod in the extrusion cylinder, and a mandrel support is arranged at the rear end of the extrusion mandrel rod; the extrusion mandrel rod is sleeved with an aluminum ingot; the extrusion pad is arranged at the rear part of the aluminum ingot; the extrusion shaft is arranged at the rear part of the extrusion pad; the swage die, the mandrel head, the extrusion mandrel rod, the extrusion pad and the extrusion shaft are arranged on the same axis; central through holes of the extrusion pad, the extrusion shaft and the aluminum ingot are square or round. The extrusion die is simple in structure, easy to mount, convenient to use and high in finished product ratio and profile quality, and the axis concentricity between the swage die and each of the extrusion mandrel rod and the mandrel head can be effectively ensured.

Description

Seamless square tube extrusion die
Technical field
The utility model relates to a kind of aluminium-alloy pipe extrusion die, especially a kind of seamless square tube extrusion die.
Background technology
At present, the plane distribution composite die that extruding aluminium alloy tubing is used, due to complex structure, design also rests in the accumulation of traditional dependence engineering analogy and design experiences, during manufacture, lean on artificial experience, repeatedly repair a die and carry out adjusting process parameter with die trial, finally design rational mould, produce accurate seamless tubular goods.In addition, due at aspects such as mould manufacture, assembling, adjustment and extrusion processes, often cause tubing eccentric, turn round stubborn, wave, bending and defects i.e.cracks, cause extruded product of low quality, reduce the service life of security and mould.Although adjust, can address the above problem,, adjustment process extremely bothers, and effect is often not ideal enough, and production capacity is low.For this reason, people develop the extrusion die of tape punching system, produce very seamless pipe tubing, can not push square tube, also exist equipment investment expense high, and tool and mould consumption is large, eccentric serious, the deficiency that yield rate is low.
Summary of the invention
The purpose of this utility model is to provide a kind of seamless square tube extrusion die, and it not only can effectively guarantee that tubing is concentric, and wall thickness is even, and also can solve aluminum pipe existence extruding weld seam, the problem that tubing intensity is low, and yield rate is high, and section quality is good.
The technical solution of the utility model is achieved in that the seamless square tube extrusion die being comprised of recipient, dummy block, extrusion axis, extruding shank, the front end that is located at the extruding shank in recipient is equipped with the square syringe needle that matches with the square nib of pattern, pin supporting is equipped with in the rear end of extruding shank, aluminium ingot is sleeved on extruding shank, the rear portion of aluminium ingot is provided with dummy block, and the rear portion of dummy block is provided with extrusion axis.
Described pattern, syringe needle, extruding shank, dummy block, extrusion axis are located on same axis.
The central through hole of described dummy block, extrusion axis, aluminium ingot is square or circular.
The utility model is simple in structure, it is easy, easy to use to install, and can effectively guarantee to push the axle center of shank, syringe needle and the axle center of pattern is mutually concentric, and yield rate is high, and section quality is good.
Accompanying drawing explanation
Below in conjunction with Figure of description and embodiment, the utility model is further illustrated
Fig. 1 is the utility model front view;
Fig. 2 is the utility model pattern and needle fits figure;
Fig. 3 is the seamless square tube of the utility model.
In figure: 1, pattern; 2, syringe needle; 3, extruding shank; 4, aluminium ingot; 5, recipient; 6, dummy block; 7, pin supports; 8, extrusion axis; 9, seamless square tube.
The specific embodiment
In Fig. 1~2, the seamless square tube extrusion die being formed by recipient, dummy block, extrusion axis, extruding shank, the front end that is located at the extruding shank (3) in recipient (5) is equipped with the square syringe needle (2) that matches with the square nib of pattern (1), pin supporting (7) is equipped with in the rear end of extruding shank, aluminium ingot (4) is sleeved on extruding shank, the rear portion of aluminium ingot is provided with dummy block (6), and the rear portion of dummy block is provided with extrusion axis (8).Described pattern, syringe needle, extruding shank, dummy block, extrusion axis are located on same axis.The central through hole of described dummy block, extrusion axis, aluminium ingot is square or circular.
During extruding, extrusion axis (8) is pushed ahead under the effect of extruder, promotes dummy block (6) and travels forward with aluminium ingot (4).Because pattern is inlaid in recipient end, aluminium ingot motion is obstructed and is produced huge extruding force, and blank metal flows out and becomes seamless square tube (9) section bar from the square nib between pattern and syringe needle under the effect of pressure.With square dummy block, extrusion axis and aluminium ingot, guarantee that flow velocity is even in extrusion process, make aluminium ingot obtain the homogeneous state of stress in crimp district, give full play to its plasticity and obtain maximum deformation quantity, improve metal material tissue, improve its mechanical property.

Claims (3)

1. a seamless square tube extrusion die, by recipient, dummy block, extrusion axis, extruding shank, formed, it is characterized in that: the front end that is located at the extruding shank in recipient is equipped with the square syringe needle that matches with the square nib of pattern, pin supporting is equipped with in the rear end of extruding shank, aluminium ingot is sleeved on extruding shank, the rear portion of aluminium ingot is provided with dummy block, and the rear portion of dummy block is provided with extrusion axis.
2. seamless square tube extrusion die according to claim 1, is characterized in that: described pattern, syringe needle, extruding shank, dummy block, extrusion axis are located on same axis.
3. seamless square tube extrusion die according to claim 1, is characterized in that: the central through hole of described dummy block, extrusion axis, aluminium ingot is square.
CN201320432286.1U 2013-07-20 2013-07-20 Seamless square tube extrusion die Active CN203437440U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320432286.1U CN203437440U (en) 2013-07-20 2013-07-20 Seamless square tube extrusion die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320432286.1U CN203437440U (en) 2013-07-20 2013-07-20 Seamless square tube extrusion die

Publications (1)

Publication Number Publication Date
CN203437440U true CN203437440U (en) 2014-02-19

Family

ID=50088514

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320432286.1U Active CN203437440U (en) 2013-07-20 2013-07-20 Seamless square tube extrusion die

Country Status (1)

Country Link
CN (1) CN203437440U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103464499A (en) * 2013-09-04 2013-12-25 辽源飞跃工模具有限公司 Seamless square tube extruding die
CN106734312A (en) * 2016-12-20 2017-05-31 清华大学 A kind of detachable combination extrusion die

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103464499A (en) * 2013-09-04 2013-12-25 辽源飞跃工模具有限公司 Seamless square tube extruding die
CN106734312A (en) * 2016-12-20 2017-05-31 清华大学 A kind of detachable combination extrusion die

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