CN206936040U - A kind of the Aluminum-Extruding Die of unmanned plane U-shaped cursor - Google Patents

Abstract

The utility model discloses a kind of the Aluminum-Extruding Die of unmanned plane U-shaped cursor, include the connector of upper mould (1), lower mould (2) and the upper and lower mould (1,2) of connection, multiple tap holes (4) that the upper mould (1) is provided with the core rod (3) of shaping in conjunction and is distributed in around core rod (3), shunting bridge (5) is formed between the tap hole (4), the lower mould (2) is provided with the different lower die worker of length and makees band (6), it is characterised in that：The core rod (3) is further separated into multiple small mould cores (7), multiple symmetrical core rod tap holes (9) are offered between the multiple small mould core (7), extrusion die of the present utility model flow rate of metal in extrusion process is uniform, mould uniform force, product surface quality is good, yields is high, die life length.

Description

A kind of the Aluminum-Extruding Die of unmanned plane U-shaped cursor

Technical field

Mould applications are the utility model is related to, more particularly to a kind of the Aluminum-Extruding Die of unmanned plane U-shaped cursor.

Background technology

Aluminum alloy materials have the advantages that density is small, intensity is high, thermal conductivity is good and plasticity is good, are commonly used for processing various types Material.It is in the forming process of aluminium section bar, it is necessary to moulding to aluminium section bar progress under the high temperature conditions using extrusion die, due to shaping It is to be carried out under conditions of HTHP, so often existing, flow rate of metal is uneven, local pressure is big, uneven etc. ask of radiating Topic, make mould is too early to scrap.For the Aluminum-Extruding Die of unmanned plane U-shaped cursor, because product wall thickness is small, change Greatly, complex-shaped, if mold design is unreasonable, its flow rate of metal is uneven, local pressure is big, radiates the problems such as uneven more For protrusion, die life is shorter, and the defects of weld seam easily occurs in product surface, and yields is low.

Utility model content

The purpose of this utility model is to be directed to drawbacks described above of the prior art, there is provided a kind of unmanned plane U-shaped cursor The Aluminum-Extruding Die, its is reasonable in design, can effective balanced flow rate of metal, improve die life and simultaneously improve product Surface quality and yields.

To realize above-mentioned purpose of utility model, the utility model employs following technical scheme：A kind of unmanned plane U-shaped rotates The Aluminum-Extruding Die of arm, including the connector of upper die and lower die and the upper and lower mould of connection, the upper mould are provided with shaping in conjunction Core rod and multiple tap holes for being distributed in around core rod, form shunting bridge between the tap hole, the lower mould is provided with length Short different lower die worker makees band, it is characterised in that：The core rod is further separated into multiple small mould cores, between the multiple small mould core Offer multiple symmetrical core rod tap holes.

In addition, the utility model also proposes following attached technical scheme：

The small mould core is provided with the core rod work band being engaged with the lower die worker as band.

The shunting bridge is provided with the pan feeding fillet of arc transition.

The shunting hole number is for 8 and symmetrical.

The tap hole is horn-like in less entrance and bigger exit.

The lower mould, which is provided with, surrounds the nib die cavity that the lower die worker makees band.

The lower mould is provided with the one-level sky knife being connected with the lower die worker as band and is connected with the one-level sky knife The two level sky knife connect.

It uses H13 standard high quality steel alloys, and is quenched by vacuum heat, and hardness is HRC50 ± 0.3.

Compared to prior art, the utility model has the advantage of：Designed by Rational structure, extruding of the present utility model Mould cause in extrusion process flow rate of metal uniformly, mould reasonable stress, so as to improve the mold use life-span, and metal exists Mixing is abundant in mould, and metal extrudes work band than more uniform so that surface quality is high.

Brief description of the drawings

Fig. 1 is the tap hole of the Aluminum-Extruding Die of this utility model unmanned plane U-shaped cursor and the schematic diagram of work band.

Fig. 2 is sectional view of the present utility model.

Fig. 3 is the sectional view that bridge A-A portions are shunted in Fig. 1.

Embodiment

Technical solutions of the utility model are made below in conjunction with preferred embodiment and its accompanying drawing further nonrestrictive detailed Explanation.

As shown in Figures 1 to 3, the Aluminum-Extruding Die of unmanned plane U-shaped cursor of the present utility model, including upper mould 1, lower mould 2 And the connector (not shown) of the upper and lower mould 1,2 of connection, connector can be bolt.8 symmetrical point is offered around upper mould 1 The tap hole 4 of cloth, symmetrical shunting bridge 5 is formed between tap hole 4, to reduce the extruding force that shunting bridge 5 is subject to, shunt bridge 5 are provided with the pan feeding fillet 10 of arc transition.The upper center of mould 1 is provided with the core rod 3 of shaping in conjunction, down mould 2 of core rod 3 Direction is further separated into six small mould cores 7, and six small mould cores 7 are distributed on the position of product hollow parts.In six small mould cores 7 Between be additionally provided with four symmetrical core rod tap holes 9, the inlet ratio core rod tap hole 9 of tap hole 4 is big, due to metal from Recipient is nearer, and frictional resistance is bigger, so the flow rate of metal of center section is greater than the flow rate of metal on periphery, tap hole 4 is set It is set to quantity and size is both greater than core rod tap hole 9 and can make it that metal feed is uniform so that the extruding that six small mould cores 7 are subject to Power is also more uniformly distributed；Meanwhile core rod tap hole 9 can supplement the metal of mould inside so that metal can uniformly go out in work band Material, obtains more preferable product surface quality.Tap hole 4, core rod tap hole 9 are internally formed mould bonding container 13 in upper mould 1, due to It just can guarantee that setting up enough static pressures mixes metal in bonding container cross sectional area and bigger the ratio between product basal area Abundant, firm welding is closed, improves product surface precision, therefore tap hole 4 is arranged to the horn-like of less entrance and bigger exit, one Aspect can expand bonding container, on the other hand can reduce metal flow resistance, balanced flow rate of metal.Lacked to reduce bubble etc. Fall into, shunting bridge 5 afterbody is provided with the conical surface 16 for promoting metal to converge.Meanwhile further to expand bonding container, it is provided with lower mould 2 The lower mould bonding container 14 being engaged with upper mould bonding container 15 and the nib die cavity 11 being connected with lower mould bonding container 14.And then Nib die cavity 11 is provided with lower die worker and makees band 6, and lower die worker makees band 6 and make band 8 with the upper die worker being arranged on small mould core 7 to be engaged, To make metal flow uniform, more preferably surface quality is obtained, land length is designed by product wall thickness, the bigger part of wall thickness, The band that works is longer, conversely, work band is shorter.The shape of nib die cavity 11 makees that the profile of band 6 is similar, and it is enclosed in lower die worker to lower die worker Make outside band 6, metal is extruded lower die worker after nib die cavity 11 converges fully and makees band 6.To prevent the product extruded away Surface is scratched by mould, makees to be provided with one-level sky knife 12 outside band 6 in lower die worker and the two level being connected with one-level sky knife 12 is empty Knife 13.

Mold materials are preferably H13 standard high quality steel alloys, and are quenched by vacuum heat, hardness be HRC50 ± 0.3, mold cavity surface roughness is Ra 0.1.

The Aluminum-Extruding Die of unmanned plane U-shaped cursor of the present utility model is reasonable in design, and mould stress is equal in extrusion process Even, metal fluidity is uniform, service life length；Metal is uniform in work band discharging, and the product surface quality squeezed out is good, non-defective unit Rate is high, can continuous production；Easy to make and whole set of die can be molded by Cutter Body Processing with Machining Center, precision is high.

It is pointed out that above-mentioned preferred embodiment is only to illustrate technical concepts and features of the present utility model, its purpose It is to allow person skilled in the art to understand content of the present utility model and implements according to this, this reality can not be limited with this With new protection domain.All equivalent change or modifications made according to the utility model Spirit Essence, should all cover in this reality Within new protection domain.

Claims (8)

1. a kind of the Aluminum-Extruding Die of unmanned plane U-shaped cursor, including upper mould (1), lower mould (2) and the upper and lower mould (1,2) of connection Connector, the upper mould (1) is provided with the core rod (3) of shaping in conjunction and the multiple shuntings being distributed in around core rod (3) Hole (4), shunting bridge (5) being formed between the tap hole (4), the lower mould (2) is provided with the different lower die worker of length and makees band (6), It is characterized in that：The core rod (3) is further separated into multiple small mould cores (7), is offered between the multiple small mould core (7) multiple Symmetrical core rod tap hole (9).

2. according to the Aluminum-Extruding Die of unmanned plane U-shaped cursor described in claim 1, it is characterised in that：The small mould core (7) sets There is the core rod for making to be engaged with (6) with the lower die worker to work with (8).

3. according to the Aluminum-Extruding Die of unmanned plane U-shaped cursor described in claim 2, it is characterised in that：The shunting bridge (5) sets There is the pan feeding fillet (10) of arc transition.

4. according to the Aluminum-Extruding Die of unmanned plane U-shaped cursor described in claim 1, it is characterised in that：Tap hole (4) number Measure for 8 and symmetrical.

5. according to the Aluminum-Extruding Die of unmanned plane U-shaped cursor described in claim 4, it is characterised in that：The tap hole (4) is in Less entrance and bigger exit it is horn-like.

6. according to the Aluminum-Extruding Die of unmanned plane U-shaped cursor described in claim 1, it is characterised in that：The lower mould (2) is set Have and surround the nib die cavity (11) that the lower die worker makees band (6).

7. according to the Aluminum-Extruding Die of unmanned plane U-shaped cursor described in claim 1, it is characterised in that：The lower mould (2) is set Have and make band (6) one-level sky knife (12) being connected and the two level being connected with the one-level sky knife (12) sky with the lower die worker Knife (13).

8. according to the Aluminum-Extruding Die of unmanned plane U-shaped cursor described in claim 1, it is characterised in that：It uses H13 standards excellent Matter steel alloy, and quenched by vacuum heat, hardness is HRC50 ± 0.3.