CN204486536U - The hydrostatic extrusion hollow profile device of the movable stud of a kind of core rod band - Google Patents
The hydrostatic extrusion hollow profile device of the movable stud of a kind of core rod band Download PDFInfo
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- CN204486536U CN204486536U CN201520025028.0U CN201520025028U CN204486536U CN 204486536 U CN204486536 U CN 204486536U CN 201520025028 U CN201520025028 U CN 201520025028U CN 204486536 U CN204486536 U CN 204486536U
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- core rod
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Abstract
The utility model discloses the hydrostatic extrusion hollow profile device of the movable stud of a kind of core rod band, comprise recipient, core rod, recipient base, also comprise movable stud and limit element, recipient base is arranged on recipient one end, core rod is arranged in recipient, core rod root is fixed on recipient base center, the sidewall of core rod is provided with limit element, slide core support set is on core rod outer wall, and be positioned at above limit element, for supporting stud, and restriction supports stud activity, the inwall of movable stud is along the side walls of core rod, the outer wall of movable stud slides along the inwall of recipient.Advantage of the present utility model is by increase activity stud on core rod, improves the stress of core rod, improves the rigidity of core rod, and increases the intensity of core rod.
Description
Technical field
The utility model belongs to hydrostatic extrusion apparatus field, is specifically related to the hydrostatic extrusion hollow profile device of the movable stud of a kind of core rod band.
Background technology
Section bar is that iron or steel and the material (as plastics, aluminium, glass fibre etc.) with some strength and toughness by rolling, are extruded, the object with certain geometrical shape that the techniques such as casting are made.Section bar is divided into solid profile and hollow profile two kinds.Hollow profile refers to that there is the section bar of one or more closed through hole in cross section, as thick-walled tube, thin-wall circular tube, rectangular tube, drop shaped tube etc.Widely apply in Aeronautics and Astronautics, automobile, machine-building, boats and ships, building, finishing and chemical industry.
Extruding is one of common preparation method of hollow profile, comprises the method such as mechanical presses and hydrostatic extrusion.Hydrostatic extrusion technique is a kind of novel material processing technique method, can carry out crimp processing to conventional deformation technique difficult to machine material.It is by superhigh pressure sealing, is placed in by extrusion blank and is full of in the sealed environment of super-pressure medium around, realize crimp by super-pressure medium transmission of pressure.Extrude compared to conventional mechanical, extrusion blank is surrounded by superhigh pressure liquid medium when hydrostatic liquid extrusion pressing deforming, be in three-dimensional compressive stress state, blank material distortion can be more even, the plasticity of material also can obtain and improve to a certain extent simultaneously, and thus hydrostatic extrusion technique can carry out plastic working to the material that other deformation technique difficulty processing maybe can not be processed.Based on these advantages, hydrostatic extrusion technique worldwide obtains and greatly develops, and the materials such as aluminium, magnesium, high-speed steel is used widely, and achieves significant deformation strengthening effect.
Core rod is the essential element of hydrostatic extrusion hollow profile, document " abundant outstanding .AZ80 magnesium alloy pipe hydrostatic extrusion extension forming technical study [D] of Wang.Institutes Of Technology Of Nanjing, 2014 " (P21) core rod of providing as shown in Figure 1.Visible core rod is fixed on base, from the stressed cantilever beam belonging to a kind of single fulcrum.Easily there is disalignment phenomenon away from base end in core rod in extrusion process, causes profile wall thickness ununiformity even, eccentric, and the transverse breakage of core rod or the phenomenon of longitudinal fracture even occur.
Summary of the invention
The purpose of this utility model is the hydrostatic extrusion hollow profile device providing the movable stud of a kind of core rod band, solve core rod in hydrostatic extrusion process easily to depart from, cause profile wall thickness ununiformity even, eccentric, even there is the transverse breakage of core rod or the problem of longitudinal fracture.
The technical solution realizing the utility model object is: the hydrostatic extrusion hollow profile device of the movable stud of a kind of core rod band, comprise recipient, core rod, recipient base, also comprise movable stud and limit element, recipient base is arranged on recipient one end, core rod is arranged in recipient, core rod root is fixed on recipient base center, the sidewall of core rod is provided with limit element, slide core support set is on core rod outer wall, and be positioned at above limit element, for supporting stud, and restriction supports stud activity, the inwall of movable stud is along the side walls of core rod, the outer wall of movable stud slides along the inwall of recipient.
Above-mentioned movable stud comprises loose collar, movable part and sealing ring, loose collar is enclosed within core rod outer wall, P the first groove is circumferentially with along loose collar inwall, P >=1, N number of movable part is provided with in first groove, N >=1, is also provided with Q annular second groove along loose collar inwall circumference, is provided with sealing ring in the second groove; Be circumferentially with K the 3rd groove along loose collar outer wall, K >=1, is provided with M movable part, M >=1 in the 3rd groove, and be also provided with L annular the 4th groove along loose collar outer wall circumference, L >=1, is provided with sealing ring in the 4th groove.
Have at least between second groove and core rod root and there is no the first groove; Have at least between one article of the 4th groove and core rod root and there is no the 3rd groove.
Above-mentioned movable part is ball, roller or needle roller.
The utility model compared with prior art, its remarkable advantage: by increase activity stud on core rod, improve the stress of core rod, the simply supported beam stress of base and the common passive pair of fulcrum of stud is become by original passive single pivot point suspending arm beam-like state of base of only having, improve the rigidity of core rod, and increase the intensity of core rod, the profile wall thickness ununiformity extruded can be avoided even,, even there is the transverse breakage of core rod or the phenomenon of longitudinal fracture in bias.
Accompanying drawing explanation
Fig. 1 is the hydrostatic extrusion hollow profile device schematic diagram of the movable stud of the utility model core rod band.
Fig. 2 is the axis profile of movable stud of the present utility model.
Fig. 3 is the core side view of the utility model embodiment 1.
Fig. 4 is the core rod top view of the utility model embodiment 1.
Fig. 5 is the mold core A-A sectional view of the utility model embodiment 1.
Fig. 6 is the movable stud top view of the utility model embodiment 1.
Fig. 7 is the movable stud B-B sectional view of the utility model embodiment 1.
Fig. 8 is the utility model embodiment 2 core side view.
Fig. 9 is the core rod top view of the utility model embodiment 2.
Figure 10 is the core rod C-C sectional view of the utility model embodiment 2.
Figure 11 is the movable stud top view of the utility model embodiment 2.
Figure 12 is the movable stud long limit schematic diagram of the utility model embodiment 2.
Figure 13 is the movable stud minor face schematic diagram of the utility model embodiment 2.
Figure 14 is the movable stud D-D sectional view of the utility model embodiment 2.
Figure 15 is the core rod top view of the utility model embodiment 3.
Figure 16 is the core rod front view of the utility model embodiment 3.
Figure 17 is the core rod E-E sectional view of the utility model embodiment 3.
Figure 18 is the movable stud top view of the utility model embodiment 3.
Figure 19 is the movable stud front view of the utility model embodiment 3.
Figure 20 is the sectional view of the movable stud F-F of the utility model embodiment 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Composition graphs 1-Fig. 2, the hydrostatic extrusion hollow profile device of the movable stud of a kind of core rod band, comprise recipient 4, core rod 5, recipient base 9, also comprise movable stud 6 and limit element 8, recipient base 9 is arranged on recipient 4 one end, core rod 5 is arranged in recipient 4, core rod 5 root is fixed on recipient base 9 center, the sidewall of core rod 5 is provided with limit element 8, movable stud 6 is enclosed within core rod 5 outer wall, and be positioned at above limit element 8, for supporting stud 6, and restriction supports stud 6 activity, the inwall of movable stud 6 is along the side walls of core rod 5, the outer wall of movable stud 6 slides along the inwall of recipient 4.
Above-mentioned movable stud 6 comprises loose collar 10, movable part 11 and sealing ring 13, loose collar 10 is enclosed within core rod 5 outer wall, P the first groove is circumferentially with along loose collar 10 inwall, P >=1, N number of movable part 11 is provided with in first groove, N >=1, is also provided with Q annular second groove along loose collar 10 inwall circumference, is provided with sealing ring 13 in the second groove; Be circumferentially with K the 3rd groove along loose collar 10 outer wall, K >=1, is provided with M movable part 11, M >=1 in the 3rd groove, and be also provided with L annular the 4th groove along loose collar 10 outer wall circumference, L >=1, is provided with sealing ring 13 in the 4th groove.
Above-mentioned movable part 11 is ball, roller or needle roller.
Above-mentioned second groove is positioned at below the first groove, and with core rod 5 bottom homonymy.
Have at least between second groove and core rod 5 root and there is no the first groove; Have at least between one article of the 4th groove and core rod 5 root and there is no the 3rd groove.
Above-mentioned limit element 8 one end is fixed on the sidewall of core rod 5 along the sidewall circumference of core rod 5, and free end upwards bends, and with the sidewall contact of core rod 5, limit element 8 is in wedge shape, and for supporting stud 6, and restriction supports stud 6 activity.
Hydrostatic extrusion hollow profile process is as follows:
Step 1, by limit element 8, movable stud 6 is moved to assigned address, in the first cavity 7 that movable stud 6 top, core rod 5 and recipient 4 are formed, add lubricating oil, lubricating oil enters into the rolling member 11 of movable stud 6, play lubrication, and sealed by the sealing ring 13 be positioned on loose collar 10 sidewall of movable stud 6, make it not toward dirty.
Step 2, blank 2 is put into recipient 4 from the entrance of recipient 4, be located at above core rod 5.
Lubricating oil is added in step 3, the second cavity 1 of being formed between blank 2 top and recipient 4, along with the increase of lubricating oil, mineralization pressure, promotes blank 2 downward, separately enter through core rod top 3 in first cavity 7, when forming enough pressure, the lubricating oil promotion activity stud 6 in the first cavity 7 retreats, and extrudes limit element 8, there is elastic deformation in limit element 8, and being pressed in core rod 5, guarantee activity stud 6 retreats, until complete extruding.
Step 4, the hydrostatic extrusion hollow profile taken out from recipient 4.
Embodiment 1
Hydrostatic extrusion prepares 10 cylindrical steel tube materials, finished product external diameter 200mm, internal diameter 100mm.
Recipient 4 internal diameter 200mm.
Blank 2 size: external diameter 200mm, height 400mm.
Second groove external diameter 110mm of loose collar 10, width 10mm, degree of depth 4mm, the 4th groove external diameter 200mm, width 20mm, degree of depth 8mm.
Sealing ring 13 is divided into the first sealing ring 13-1 and the second sealing ring 13-2, is O RunddichtringO, wherein the first sealing ring 13-1 external diameter 110mm, internal diameter 100mm, and height 10mm, be stuck in the second groove, the second groove is given prominence at its top.Second sealing ring 13-2 external diameter 200mm, internal diameter 180mm, height 20mm, be stuck in the 4th groove, the 4th groove is given prominence at its top, realizes sealing.
Core rod 5: core rod 5 comprises cylinder and frustum, is provided with frustum at cylindrical member at one end.Cylinder external diameter 97mm, long 300mm.Core rod top 3 is frustum, and frustum upper bottom surface diameter 90mm, bottom surface diameter 100mm, frustum height 30mm, frustum bottom surface is fixed on cylinder ends.As shown in Fig. 3,4,5.
Movable part 11 adopts diameter to be the spin of 4mm.
Movable stud 6: external diameter 198mm, internal diameter 98mm, height 50mm.As shown in Figure 6,7.Be uniformly distributed 4 the first grooves along loose collar 10 inwall circumference, the first recess width direction is parallel to movable stud 6 short transverse, is provided with 6 movable parts 11 in the first groove.Be circumferentially with the second groove of 1 annular along loose collar 10 inwall, the second groove, between the first groove and recipient base 9, is provided with the first sealing ring 13-1 in the second groove; 4 the 3rd grooves are uniformly distributed along loose collar 10 outer wall circumference, 3rd recess width direction is parallel to movable stud 6 short transverse, 6 movable parts 11 are provided with in 3rd groove, 1 annular the 4th groove is circumferentially with along loose collar 10 outer wall, 4th groove, between the 3rd groove and recipient base 9, is provided with the second sealing ring 13-2 in the 4th groove.
Core rod 5 is provided with a groove, and limit element 8 is the aluminium bronze silk of diameter 0.5mm, and one end is fixed in the groove of core rod 5 by bolt 21, one end is free end in addition, and stretch out the backward lower turnover of a segment distance, stretches in groove after turnover, but do not fix, can Free Transform, as shown in Figure 5.
Lubricating oil is machine oil.
Room temperature extrudes.
Hydrostatic extrusion hollow profile process is as follows:
Step 1, by limit element 8, movable stud 6 is moved to assigned address, in the first cavity 7 that movable stud 6 top, core rod 5 and recipient 4 are formed, add lubricating oil, lubricating oil enters into the rolling member 11 of movable stud 6, play lubrication, and seal by being positioned at the first sealing ring 13-1 on loose collar 10 sidewall of movable stud 6 and the second sealing ring 13-2, make it not toward dirty.
Step 2, blank 2 is put into recipient 4 from the entrance of recipient 4, be located at above core rod 5.
Lubricating oil is added in step 3, the second cavity 1 of being formed between blank 2 top and recipient 4, along with the increase of lubricating oil, mineralization pressure, promotes blank 2 downward, separately enter through core rod top 3 in first cavity 7, when forming enough pressure, the lubricating oil promotion activity stud 6 in the first cavity 7 retreats, and extrudes limit element 8, there is elastic deformation in limit element 8, and being pressed in core rod 5, guarantee activity stud 6 retreats, until complete extruding.
Step 4, the hydrostatic extrusion hollow profile taken out from recipient 4.
Embodiment 2
Hydrostatic extrusion prepares 7075 aluminum alloy square tubing, and tubing cross section is rectangle, and side dimension is 300mm × 200mm, wall thickness 10mm.
Recipient 4 cross section is rectangle, and cross section of inboard wall is of a size of 300mm × 200mm.
Blank 2 is cuboid, is of a size of 300mm × 200mm × 100mm.30mm × 20mm is of a size of high for boring the side of 15mm on processing base, center.
Sealing ring 13 is divided into three kinds, be square RunddichtringO, cross sectional dimensions 10mm × 10mm, wherein the first sealing ring 13-1 outside dimension is 302mm × 206 × 10mm, and the second sealing ring 13-2 outside dimension is 304mm × 208 × 10mm, the 3rd sealing ring 13-3 internal diameter is 300mm × 200mm × 10mm.
Core rod 5: core rod 5 comprises two cuboids and side's cone.Wherein the first cuboid dimensions is 180mm × 80mm × 500mm, second cuboid dimensions 300mm × 200mm × 5mm, and it is 150mm that cone base, side is of a size of 300mm × 200mm height.Second cuboid one end is connected with the first cuboid, and the other end is bored with side and is connected.As shown in Figure 8,9, 10.
Limit element 8 is cast iron hexagonal prism, four faces along core rod 5 first cuboid outer wall all have a groove, and limit element 8 one end is fixed on by spring 22 in the groove of core rod 5, by spring 22, make limit element 8 along concave slot sports, as shown in Figure 10.
Movable part 11 is divided into following four kinds, comprising the first rolling member 11-1 is diameter 10mm ball, second movable part 11-2 is diameter 8mm ball, 3rd rolling member 11-3 is the roller of the long 10mm of diameter 8mm, 4th rolling member 11-4 is the long 20mm needle roller of diameter 4mm, and distribution and position are as shown in Figure 12,13,14.
Second groove external diameter 110mm of loose collar 10, width 10mm, degree of depth 4mm, the 4th groove external diameter 200mm, width 20mm, degree of depth 8mm.
Movable stud 6: side dimension is 298mm × 202mm, inside dimensions 182mm × 82mm, height 46mm, as shown in Figure 11,12,13,14.Along loose collar 10 inwall, the long limit of every bar is uniformly distributed 9 the first grooves, and be provided with 1 the 4th movable part 11-4 in each first groove, every bar minor face is uniformly distributed 3 the first grooves, is provided with 1 the first movable part 11-1 in each first groove.Also be provided with 2 annular second grooves along loose collar 10, the first groove, between above-mentioned two the second grooves, is provided with the first sealing ring 13-1 in the second groove; Along loose collar 10 outer wall, every article long limit is uniformly distributed 2 the 3rd grooves, is provided with 30 the second movable part 11-2 in the 3rd groove, is provided with 60 the second movable part 11-2 in another the 3rd groove.Along loose collar 10 outer wall, every article of minor face is provided with 2 the 3rd grooves, is provided with 40 the second movable part 11-2 in the 3rd groove, is provided with a 3rd rolling member 11-3 in another the 3rd groove.Also be provided with 1 annular the 4th groove along loose collar 10 outer wall, the 4th groove, between two the 3rd grooves of above-mentioned minor face, is provided with the second sealing ring 13-3 in the 4th groove.As shown in Figure 11,12,13,14.
Lubricating oil is castor oil.
Blank 2, core rod 5, recipient 4, lubricating oil, movable stud 6 etc. are all preheating to 150 DEG C, then assemble extruding.
Hydrostatic extrusion hollow profile process is as embodiment 1.
Embodiment 3
Hydrostatic extrusion cross section is equilateral pentagonal AZ80 magnesium alloy heterotype tubing, is cut in the circle of radius 50mm, wall thickness 20mm outside the equilateral pentagon in inner side.
Recipient 4 inwall is equilateral pentagon, is cut in the circle of radius 50mm outward.
Blank 2 is equilateral pentagon post, and outside pentagon is inscribed within the circle of radius 50mm, is highly 70mm.
Sealing ring 13 comprises the first sealing ring 13-1 and the second sealing ring 13-2, is O RunddichtringO, cross sectional dimensions 20mm × 10mm.Wherein the second sealing ring 13-2 external diameter is 50mm, and the first sealing ring 13-1 external diameter is 36mm.
Core rod 5: core rod 5 comprises two equilateral pentagon posts and a base is equilateral pentagonal centrum, is cut in the circle of radius 50mm, high 5mm outside the equilateral pentagon of wherein the first equilateral pentagon post; The circle of radius 37.08mm is cut in, high 300mm outside the equilateral pentagon of the second equilateral pentagon post.Centrum height is 120mm, is cut in the circle of radius 50mm outside the equilateral pentagon on base.Second equilateral pentagon post is between the first equilateral pentagon post and centrum.As shown in Figure 15,16,17.
Rolling member comprises the first rolling member 11-1 and the second rolling member 11-2, and the first rolling member 11-1 is diameter 10mm ball, and the second rolling member 11-1 is diameter 8mm ball.
Limit element 8 is for being spring steel plate, all have a groove along on five faces of core rod 5 outer wall, limit element 8 one end is fixed in above-mentioned groove by screw 23, and one end is connected by slide block 24 and valve rubber 25 in addition, valve rubber 25 is fixed in groove by 502 glue, as shown in figure 17.
Movable stud 6 is equilateral pentagon post, and outside pentagon is inscribed within the circle of radius 49mm, and inner side pentagon is inscribed within the circle of radius 36mm, height 60mm.As shown in Figure 18,19,20.10 the first grooves are uniformly distributed along loose collar 10 inwall circumference, first recess width direction is parallel to movable stud 6 short transverse, be provided with 3 the first movable part 11-1 in first groove, be also provided with 1 annular second groove along loose collar 10 inwall, in the second groove, be provided with the first sealing ring 13-1; Be uniformly distributed 10 the 3rd grooves along loose collar 10 outer wall, the 3rd recess width direction is parallel to movable stud 6 short transverse, is provided with 4 the second movable part 11-2 in each 3rd groove; Also be provided with 1 annular the 4th groove along loose collar 10 outer wall circumference, in the 4th groove, be provided with the second sealing ring 13-2.3rd groove is between the 4th groove and recipient base 9, and the second groove is between the first groove and recipient base 9.
Lubricating oil is machine oil+castor oil.
Blank 2, core rod 5, recipient 4, lubricating oil, movable stud 6 etc. are all preheating to 400 DEG C, then assemble extruding.
Hydrostatic extrusion hollow profile process is as embodiment 1.
Claims (4)
1. the hydrostatic extrusion hollow profile device of the movable stud of core rod band, comprise recipient (4), core rod (5), recipient base (9), it is characterized in that: also comprise movable stud (6) and limit element (8), recipient base (9) is arranged on recipient (4) one end, core rod (5) is arranged in recipient (4), core rod (5) root is fixed on recipient base (9) center, the sidewall of core rod (5) is provided with limit element (8), movable stud (6) is enclosed within core rod (5) outer wall, and be positioned at limit element (8) top, for movable support stud (6), and the activity of restraint stud (6), the inwall of movable stud (6) is along the side walls of core rod (5), the outer wall of movable stud (6) slides along the inwall of recipient (4).
2. the hydrostatic extrusion hollow profile device of the movable stud of core rod band according to claim 1, it is characterized in that: above-mentioned movable stud (6) comprises loose collar (10), movable part (11) and sealing ring (13), loose collar (10) is enclosed within core rod (5) outer wall, P the first groove is circumferentially with along loose collar (10) inwall, P >=1, N number of movable part (11) is provided with in first groove, N >=1, also be provided with Q annular second groove along loose collar (10) inwall circumference, in the second groove, be provided with sealing ring (13); Be circumferentially with K the 3rd groove along loose collar (10) outer wall, K >=1, is provided with M movable part (11), M >=1 in the 3rd groove, and be also provided with L annular the 4th groove along loose collar (10) outer wall circumference, L >=1, is provided with sealing ring (13) in the 4th groove.
3. the hydrostatic extrusion hollow profile device of the movable stud of core rod band according to claim 2, is characterized in that: have at least between second groove and core rod (5) root and do not have the first groove; Have at least between one article of the 4th groove and core rod (5) root and there is no the 3rd groove.
4. the hydrostatic extrusion hollow profile device of the movable stud of core rod band according to claim 2, is characterized in that: above-mentioned movable part (11) is ball, roller or needle roller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520025028.0U CN204486536U (en) | 2015-01-14 | 2015-01-14 | The hydrostatic extrusion hollow profile device of the movable stud of a kind of core rod band |
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| CN201520025028.0U CN204486536U (en) | 2015-01-14 | 2015-01-14 | The hydrostatic extrusion hollow profile device of the movable stud of a kind of core rod band |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511514A (en) * | 2015-01-14 | 2015-04-15 | 南京理工大学 | Hydrostatic extrusion hollow profile device with movable core support for die core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511514A (en) * | 2015-01-14 | 2015-04-15 | 南京理工大学 | Hydrostatic extrusion hollow profile device with movable core support for die core |
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Granted publication date: 20150722 Termination date: 20200114 |
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