CN2825147Y

CN2825147Y - Extrusion forming mould for aluminium alloy shell of frequency hopping radio

Info

Publication number: CN2825147Y
Application number: CN 200520027182
Authority: CN
Inventors: 国占昌; 李强
Original assignee: TIANJIN RUIXIN ELECTRON HEAT EXCHANGE TECHNOLOGY Co Ltd
Current assignee: TIANJIN RUIXIN ELECTRON HEAT EXCHANGE TECHNOLOGY Co Ltd
Priority date: 2005-08-30
Filing date: 2005-08-30
Publication date: 2006-10-11
Anticipated expiration: 2015-08-30

Abstract

The utility model relates to an extrusion forming mould for aluminium alloy shells of frequency hopping radios, which can accomplish product shaping via a twelve-path shunting current type combined mould and heated aluminium alloy bar blanks via shunting rewelding. A mould core 2 is divided into twelve paths which are provided with dovetail grooves 8 of eleven shielding ribbed slabs 5, and the dovetail groove 8 is used for inserting a patch board. An upper mould 1 is provided with an outer shunting hole 3, the connecting part of the upper mould 1 and the mould core 2 is an annular belt 6 with gradient, and the annular belt 6 is provided with a shunting slot 7. The back surface of the upper mould 1 is provided with an inner shunting hole 4 so as to assure the feeding and dimensional accuracy of the shield ribbed slab 5, a middle mould 9 is provided with a welding chamber 10 and is fixed with an impede wall 11 so as to balance the metallic flow velocity at the shield ribbed slab 5, and an inner and an outer shunting holes 4, 3 to be consistent. The utility model has the advantages of simple structure, mass and serialization production, high product precision, interchange ability of fixing dimension, high yield rate, no pollution and low cost, and the utility model improves environmental improvement and reduces labor strength.

Description

Frequency hopping radio station aluminum alloy shell extrusion molding dies

Technical field:

The utility model belongs to the mould class, particularly relates to a kind of frequency hopping radio station aluminum alloy shell extrusion molding dies of an extrusion modling.

Background technology:

As everyone knows, be used to load the FM radio station aluminum alloy casing of communication line plate on the transmiter, because its section configuration complexity, inner passage size and gusset gauge do not wait, gusset thickness 0.8-1.5mm only especially, and asymmetric, therefore the traditional precision casting process of many employings, but it need overlap sand mo(u)ld with three molds preparation one, and the service life of a cover sand mo(u)ld is short, and it can only cast a product, so productivity ratio is low, in addition, the defective that casting technique itself is intrinsic has a strong impact on the serviceability of product, simultaneously, the product of at every turn casting, its size can not be in full accord, so interchangeability is poor.

Summary of the invention:

Main purpose of the present utility model is to overcome above deficiency and provides a kind of product precision height, the frequency hopping radio station aluminum alloy shell extrusion molding dies of the multichannel enclosed construction that interchangeability is good.

The technical scheme that its technical problem that solves the utility model adopts is: it is by die sleeve, patrix, core rod, middle mould and support mould are formed, it is characterized in that: patrix 1 and core rod 2 are one, patrix 1 center is near locating to have external shunt hole 3 around the core rod, the center at patrix 1 back side and shielding gusset 5 corresponding sections on the core rod 2 have rectangular interior tap hole 4, external shunt hole 3 is continuous circular shape band 6 and has the gradient with core rod 2 junctions, aim at shielding gusset 5 places on this surface, endless belt and have guiding gutter 7, core rod 2 is divided into the guide rail dovetail groove 8 on 11 of 12

passages shielding gussets

5 and 12 passages, center positions have seam chamber 10 in the middle mould 9, its inner lane is fixed with and hinders wall 11, and side is work zone 12 within it.

The utility model can also adopt following technical measures: described external shunt hole 3 is domatic and has drainage circular arc 13 in the middle of the adjacent external shunt hole 3 for wing.

Advantage and the good effect that the utlity model has are: simple in structure, realized mass and serialization production, and product precision height, fitted position has interchangeability, has improved lumber recovery, prevents public hazards, has improved environment, has reduced labour intensity, and cost is low.

Description of drawings:

Fig. 1 is a syndeton schematic diagram of the present utility model.

Fig. 2 is patrix 1 structural representation.

Fig. 3 is patrix 1 schematic rear view.

Fig. 4 is the structural representation of middle mould 9.

Fig. 5 is the A--A cross-sectional schematic of Fig. 4.

Fig. 6 is patrix 1 and middle mould 9 combination generalized sections.

Fig. 7 is finished section bar 17 structural representations.

Among Fig. 1-Fig. 7: 1. patrix, 2. core rod, 3. external shunt hole, 4. in tap hole, 5. shielding gusset, 6. endless belt, 7. guiding gutter, 8. guide rail dovetail groove, 9. in mould, 10. seam chamber, 11. hinder walls, 12. work zones, 13. drainage garden arc, 14. die sleeves, 15. hold modes, 16. alignment pins, 17. section bars.

The specific embodiment:

For further understanding summary of the invention characteristics of the present utility model and effect following examples for example now, and conjunction with figs. is described in detail as follows, and sees also Fig. 1-Fig. 7.

As shown in Figure 1: the utility model is 12 corridor diversion combination dies, aluminium alloy bars base after the heating produces product is finished in plastic flow again after the seam of seam chamber pressure moulding by tap hole, this mould is by patrix 1, core rod 2 and middle mould 9 constitute, patrix 1 and core rod 2 are one, patrix 1 center is near locating to have wing external shunt hole 3 around the core rod 2, be the gradient and be with drainage circular arc 13 in the middle of per two adjacent holes, flow direction during with the guide wire flow, more helping metal fully fills, as Fig. 2, it is shown in Figure 3: because core rod 2 is divided into the guide rail dovetail groove 8 on 11 of 12

passages shielding gussets

5 and 12 passages, shielding gusset 5 is 0.8-1.5mm, 11 shielding gusset 5 thickness size differences of 12 passages, asymmetric again, dovetail groove 8 thickness size differences, so, the center at patrix 1 back side and shielding gusset 5 corresponding sections on the core rod 2 have rectangular interior tap hole 4, external shunt hole 3 is the continuous circular shape band 6 that has the gradient with core rod 2 junctions, aim at shielding gusset 5 places on the surface of this endless belt 6 and have guiding gutter 7, interior tap hole 4 and guiding gutter 7 all can guarantee to shield the feed of gusset 5 and the dimensional accuracy after the moulding, can avoid this place's metal fracture fully, as Fig. 4-shown in Figure 6: center positions have seam chamber 10 in the middle mould 9, its inner lane is fixed with and hinders wall 11, hinder the height difference of wall 11, mainly be flowing velocity and inside and outside tap hole 4 for balance shield gusset 5 place's metals, the flow velocity unanimity of 3 place's metals, to guarantee the do not exist together uniformity of metal flow speed of product thickness, hindering wall 11 inboard exits is work zone 12, and the product that comes out of extruding is 12 passage enclosed construction extrudates 17 as shown in Figure 7 from here.

In use, with the die sleeve in the mold assemblies 14, go up film 1, middle mould 9 and a hold mode 15 and pack into successively and be fixed in the extruder, last film 1 and 16 pairs of mutatis mutandis screws of middle mould 9 usefulness alignment pins are fixed, rods and bars of aluminium alloy after the heating is pressed into from die sleeve 14 rear arrows, is squeezed into the section bar that dimensional accuracy meets the requirements behind film 1 and the middle mould 9 on the process.Because this mould uses on 5500 tons of extruders, mould should have the pressure that very high intensity could be carried 260N/mm, could under 450 ℃ of uses of high temperature, satisfy higher rigidity requirement, particularly the alternate stress when continuously extruded is to the alternate load of mould generation, in addition, inside and outside frictional force in the time of also will overcoming rods and bars of aluminium alloy and in recipient, move, so require mould should have higher red hardness, the utility model has been selected Austrian 8402 trade mark import mould steel for use, material is heat-treated, make the structure refinement of mould steel, thoroughly eliminate the structural stress and the temperature stress of mould, the service life of improving mould by tempering repeatedly.

The utility model has the advantages that: simple in structure, realized mass and serialization production, the product essence Degree is high, and fitted position has interchangeability, has improved lumber recovery, prevents public hazards, has improved environment, reduces Labour intensity, cost is low.

Claims

1, a kind of frequency hopping radio station aluminum alloy shell extrusion molding dies, it is by die sleeve, patrix, core rod, middle mould, the support mould is formed, it is characterized in that: patrix (1) and core rod (2) are one, patrix (1) center is near locating to have external shunt hole (3) around the core rod (2), the center at patrix (1) back side and shielding gusset (5) corresponding section on the core rod (2) have rectangular interior tap hole (4), external shunt hole (3) is continuous circular shape band (6) and has the gradient with core rod (2) junction, aim at shielding gusset (5) on this endless belt (6) surface and locate to have guiding gutter (7), core rod (2) is divided into the guide rail dovetail groove (8) on the individual passage of (11) bar shielding gusset (5) and (12) of (12) individual passage, the middle interior center position of mould (9) has seam chamber (10), its inner lane is fixed with and hinders wall (11), hinder the height difference of wall (11), side is work zone (12) within it.

2, frequency hopping radio station aluminum alloy shell extrusion molding dies according to claim 1 is characterized in that: described external shunt hole (3) is the gradient and has drainage circular arc (13) in the middle of the adjacent external shunt hole (3) for wing.