CN106914544A - Magnesium alloy sheet punching press hot forming tool - Google Patents

Magnesium alloy sheet punching press hot forming tool Download PDF

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Publication number
CN106914544A
CN106914544A CN201710253669.5A CN201710253669A CN106914544A CN 106914544 A CN106914544 A CN 106914544A CN 201710253669 A CN201710253669 A CN 201710253669A CN 106914544 A CN106914544 A CN 106914544A
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CN
China
Prior art keywords
mould
magnesium alloy
alloy sheet
punching press
forming tool
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Granted
Application number
CN201710253669.5A
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Chinese (zh)
Other versions
CN106914544B (en
Inventor
王鑫松
王守仁
王高琦
王立虎
王成
薛传艺
颜新宇
付坤
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University of Jinan
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University of Jinan
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Priority to CN201710253669.5A priority Critical patent/CN106914544B/en
Publication of CN106914544A publication Critical patent/CN106914544A/en
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Publication of CN106914544B publication Critical patent/CN106914544B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/16Heating or cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003Positioning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D45/00Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/02Ejecting devices
    • B21D45/04Ejecting devices interrelated with motion of tool

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The invention discloses a kind of magnesium alloy sheet punching press hot forming tool, including:Heater box, equipped with heater and equipped with bin gate;Seat, installed in the bottom of heater box, and this is provided with two tracks towards bin gate, and perpendicular to the lower mould via of bottom;Plate, is flatly inserted on the seat by the track, and the plate is provided with the secondary via aligned with lower mould via;The part that the upper surface of plate is located between two tracks has forming surface, and the forming surface also constitutes the positioning mounting surface of workpiece;Upper mould, positioned at the top of seat;Upper mould drive device, under connect mould;Lower mould, contains the moulded head for being guided on lower mould via;And lower die driving device, above connect mould.It is relatively good according to temperature stability in forming process of the present invention, and magnesium alloy sheet blank oxygenation efficiency is than relatively low.

Description

Magnesium alloy sheet punching press hot forming tool
Technical field
The present invention relates to a kind of magnesium alloy sheet punching press hot forming tool.
Background technology
The new material of development, reduces consumption, and environmental protection is realized the sustainable development of society, most closed recently into us One problem of note., used as applicable most light metal material in the world at present, its specific strength and specific stiffness are high, heat conduction for magnesium alloy Conductive and capability of electromagnetic shielding is superior, the good advantage of being compatible with the environment property, with application prospect widely.
Sheet forming is widely used in the fields such as automobile, Aero-Space, instrument and meter, general merchandise, and it decides plate Forming technology, manufacturing process, forming accuracy of plate etc., play an important role in mechanical industry.Wherein, using punching press skill Art can give full play to the excellent mechanical performance of magnesium alloy materials, meet product diversification, thin-walled property, light-weighted requirement, and And product percent of pass and production efficiency can be greatly improved.Therefore the research and development of magnesium alloy sheet punch forming technology are Study hotspot as the field of magnesium alloy Plastic Forming in recent years.
Magnesium alloy has Patterns for Close-Packed Hexagonal Crystal structure, and plastic deformation ability is poor under normal temperature, but with the rising of temperature, its modeling Property processability will occur to sexually revise at all, in mechanical field also widely using hot stamping die.Magnesium has stronger going back Originality, after igniting can sustained combustion in atmosphere, with the rising of temperature, its reproducibility may proceed to lifting, and be easy to by oxygen Change.
Chinese patent literature CN103212617A is specific to magnesium alloy plate impact forming method, and it proposes first to add Heat, being then transported to station determined by mould carries out processing and forming, can cause in transport process workpiece expose in atmosphere and Workpiece surface oxidation is easily produced, and also produces the thermal loss in transport process.
For the defect of Chinese patent literature CN103212617A, can use for reference, Chinese patent literature CN106424279A proposes to configure heating mantles in stamping mold, for being heated to mould and blank, to avoid blank from existing Transported between station and oxidation occur, and reduce the thermal loss in transhipment.The patent document does not express mode of heating, only It belongs to the heating of high strength steel steel plate, it is necessary to be heated to more than 950 DEG C, and do not needed then for magnesium alloy sheet so high Temperature, magnesium alloy sheet has requirement higher to temperature controlled precision, and temperature is too high to cause magnesium alloy sheet warpage, mistake It is low to meet required plastic deformation ability.
Chinese patent literature CN106042061A discloses a kind of control realized in the way of closed-loop control to forming temperature System, the control accuracy of closed-loop control is higher, but cost is also higher, in addition it is also necessary to independent control device, and its loading and unloading Structure with heating, attemperator shortcoming it is necessary contact, efficiency of utilization is relatively low.
Chinese patent literature CN105251685A discloses a kind of mode that antioxidant coating is coated on metal blank surface To avoid workpiece from aoxidizing, on the one hand this kind of mode need high-temperature coatings, another such as 1200 DEG C of the highest that the patent document is proposed Aspect, workpiece is produced in forming process, often and is plastically deformed, and workpiece local surface can increase, and coating can not be covered Whole surfaces, and cause workpiece surface selective oxidation.
The content of the invention
In view of this, it is an object of the invention to provide a kind of magnesium alloy sheet punching press hot forming tool, in forming process Temperature stability is relatively good, and magnesium alloy sheet blank oxygenation efficiency is than relatively low.
According to embodiments of the invention, there is provided a kind of magnesium alloy sheet punching press hot forming tool, including:
Heater box, equipped with heater and equipped with bin gate;
Seat, installed in the bottom of heater box, and this is provided with two tracks towards bin gate, and perpendicular to the lower mould mistake of bottom Hole;
Plate, is flatly inserted on the seat by the track, and the plate is provided with the secondary via aligned with lower mould via;Insert The part that the upper surface of plate is located between two tracks has forming surface, and the forming surface also constitutes the positioning mounting surface of workpiece;
Upper mould, positioned at the top of seat;
Upper mould drive device, under connect mould;
Lower mould, contains the moulded head for being guided on lower mould via;And
Lower die driving device, above connects mould.
Above-mentioned magnesium alloy sheet punching press hot forming tool, alternatively, upper mould drive device is located at the top of heater box;
Correspondingly, the top board of heater box is provided with guide hole;
Upper mould is connected by guide hole with upper mould drive device.
Alternatively, the part being connected with upper mould drive device for upper mould is pull bar, and pull bar is furnished with 2 ~ 4, all pull bars Upper end be fixedly mounted on the same upper beam for being contained in mould drive device, the lower end of all pull bars is fixedly mounted on same mould Plate;
Template is used for the assembling in upper mould drive device of upper mould.
Alternatively, hermetic seal is slidably matched between pull bar and the guide hole.
Alternatively, the heater of heater box is included installed in the heating rod of heater box bottom and installed in heating tank wall Heating rod on face.
Alternatively, the track construction is:
In T-slot is formed with seat, the left and right groove of the T-slot respectively constitutes a track;
The positioning mounting surface is located in the trough with straight angle of T-slot.
Alternatively, it is plane engagement between the bottom land and seat of T-slot.
Alternatively, T-slot has chamfering or rounding towards one end of bin gate.
Alternatively, lower die driving device is fluid pressure type driving device:
The backing plate or seat of lower mould are arranged on the push rod of a heavy in section hydraulic cylinder;
Heavy in section hydraulic cylinder connects a small bore plunger displacement pump, to provide hydraulic oil needed for the hydraulic cylinder of heavy in section;
The area of section of heavy in section hydraulic cylinder is not less than 30, and no more than 50 with the area of section ratio of small bore plunger displacement pump.
Alternatively, the muscle forming part aligned with upper mould is provided with corresponding to the side of two tracks in positioning mounting surface, muscle is first molded Clamped for lower mould positioning preceding in place.
According to embodiments of the invention, identical with the punching press hot forming tool using heater box, workpiece is not easy to be oxidized, And heat scatter and disappear it is small.What is more important, is used to carry workpiece using plate, can be from bin gate side base in the pull mode of plate Loading and unloading, relative to conventional lower material-uploading style, the space requirement to loading and unloading is smaller, such that it is able to using relatively small Heater box, and area of dissipation is reduced, temperature stability is relatively good, while decreasing the inlet of oxygen, and is not easy to produce The oxidation of raw workpiece.Additionally, in this structure, due to reliable positioning, workpiece are easily realized between plate and seat based on cooperation If being positioned after plate pull-out, one side security is relatively good, it is to avoid upper mould falls produce dangerous, another aspect suddenly, Carrying out between upper and lower mould outside space positions, small by space constraint, easy to operate, and easily realizes relatively precisely determining Position.
Brief description of the drawings
Fig. 1 is the structure principle chart of magnesium alloy sheet punching press hot forming tool in an embodiment.
Fig. 2 is lower die driving device structural representation in an embodiment.
In figure:1. heater, 2. heating rod, 3. heater box, 4., and 5. plate, 6. workpiece, 7. goes up mould, 8. template, 9. spiral shell Bolt, 10. upper beam, 11. upper junction plates, 12. pull bars, 13. guide holes, 14. times moulds, 15. pressurized cylinders, 16. big cylinder bodies.
S1. pressurized cylinder ram area, the big cylinder body piston areas of S2..
F1. active force, F2. is from power.
Specific embodiment
For ramming mould, the power direction of mould is generally all vertical, therefore, the motion side on its basis on the whole To be vertically to above-below direction in other words.
The lower mould of mould is typically fixedly installed on the workbench of such as forcing press, and the upper mould of mould is arranged on forcing press On upper mould.
In some implementations, lower mould also includes moving part, such as lower mould shown in Fig. 1.
A kind of magnesium alloy sheet punching press hot forming tool as illustrated in fig. 1 and 2, its agent structure is the heating shown in figure Case 3, it is to be appreciated that the structure of the necessarily relative closure of heater box 3, its relative closure is embodied in it must bin gate, with In the loading and unloading of workpiece.
Heater box 3 is body structure, not high to sealing requirements, enters into air capacity in heater box 3 and is not enough to produce The large area oxidation of workpiece 6.
Prior art is different from, the seat 4 with track is set in the casing of heater box 3, it is to be understood that in order to ensure The exactitude position of upper mould 7 and lower mould, seat 4 should be reliable in the position of heater box 3.
In certain embodiments, can be connected by screw bolts between the bottom of seat 4 and heater box 3, and be carried out by alignment pin Positioning.
Seat 4 is main to provide the track for being used for pull plate 5 such as Fig. 1, and the direction of pull should be vertical with the direction of bin gate, because This, track should should be parallel to each other towards bin gate, two corresponding track components, and horizontally disposed.
Seat 4 is also provided with lower mould via, in this regard, as it was previously stated, the relative motion between upper and lower mould is up and down motion, the institute of seat 4 The basis of offer is the basis for carrying, and the stress principal direction of carrying is above-below direction, therefore, lower mould via should be upper and lower To, and it is vertical with direction determined by two tracks.
For plate 5, it passes through the track and is flatly inserted on the seat 4, and the plate 5 is provided with and lower mould via pair The secondary via of position, after the mounting workpiece 6 of plate 5 reaches station, can be locked, it is also possible to directly use by the file for giving Bin gate carries out the position locking of plate 5, and in a preferred embodiment, in order to reduce the heat bridge produced by directly contact, bin gate should Disengaged with plate 5, the position locking of plate 5 is realized by miscellaneous part.
Position locking on plate 5, level can be used in some simple applications(With the pull direction of plate 5 Vertically), it would however also be possible to employ vertical latch carries out position locking.
Further, since the direction of shaping belongs to vertical positive formation power, in certain embodiments, plate 5 can be needed only Position, it is not necessary to clamp position locking in other words.
In Fig. 1, seat 4 provide mounting plane, the back side of plate 5, that is, lower surface can with the mounting plane engagement, Metastable position is provided.
In level between, a space is determined between two tracks, the upper surface of plate 5 is located between two tracks Part has forming surface, and the forming surface may be constructed the part of lower mould assembly, relative to the lower mould 14 shown in figure, the institute of plate 5 The moulding section of offer belongs to static part.
The forming surface also constitutes the positioning mounting surface of workpiece 6, and workpiece 6 can be positioned in forming surface in advance, Ran Housui Plate 5 to serve on seat 4.
Routinely, the feeding of workpiece 6 is typically all to lack fixed space perpendicular to upper and lower mould(Direction)By feed mechanism Feeding, or be manually fed into.When being especially manually fed into, to feeding space requirement than larger, this is required between upper and lower mould With the stroke of dynamic model than larger distance, can be increased, increase energy consumption.
For ramming mould, work enters the switch usually pedal of stroke, by workman's feeding in place after, step on step on immediately Plate, upper mould(Constitute dynamic model)Descending stamped workpieces, artificial feeding, control dynamic model is descending in operating personnel's fatigue, easily steps on by mistake Pedal, and accident is produced, press workshop belongs to accident rate workshop higher.
If using plate 5, accident can be reduced, be the upper discharge position of workpiece 6 not between upper and lower mould, but Feeding is carried out after the extraction of plate 5, even workman's maloperation, upper mould 7 is descending, will not also produce casualty accident.
Workpiece 6 pushes plate 5 after the feeding of upper mould 7, you can carry out the shaping of workpiece 6.
Based on upper and lower relation, upper mould 7 is located at the top of seat 4, and lower mould 14 is located at the lower section of seat 4, and upper mould 7 needs the upper mould of configuration Drive device, as dynamic model;The moulding section of lower mould 14, i.e. the lower mould 14 identified in Fig. 1, is also dynamic model, it is necessary to configure down Mould drive device.
The drawing structure of plate 5, space pull needed for smaller to loading and unloading space requirement, easily insulation, temperature Stability is relatively good.
Driving on upper mould 7, by the configuration of upper mould drive device in the top of heater box 3, reduces the volume of heater box 3.
Upper mould 7 needs to be connected with upper mould drive device, therefore, the top board of heater box 3 is provided with guide hole, as shown in fig. 1 Guide hole 13, with provide upper mould 7 up and down motion guiding.With this understanding, upper mould 7 passes through guide hole 13 and upper mould drive device phase Even.
Despite the presence of guide hole 13, but the fit clearance of one side guide hole 13 and the pull bar 12 for example shown in Fig. 1 and it is not required to It is too big, it becomes possible to meet guiding and require.On the other hand, as it was previously stated, heater box 3 is to not high, the gap institute of air-tightness requirement The heat dissipation of generation can be ignored substantially.
Hermetic seal is slidably matched between the guide hole 13 shown in pull bar 12 and Fig. 1, and being slidably matched can add kollag, Such as graphite, does not use lubricating grease or lubricant, such as kollag, graphite to be not easy volatilization of being heated as far as possible, and Be attached on sealing surface do not allow it is easy to fall off.
Punching press is needed than larger lower pressure, therefore should have reliable company between the upper mould drive device of upper mould more than 7 Connect intensity.Visible in Fig. 1, the part being connected with upper mould drive device for upper mould 7 is pull bar 12, and pull bar 12 is furnished with 2 ~ 4, draws When bar 12 is two, two pull bars 12 be arranged in parallel, and with this understanding, pull bar 12 should have the larger shearing resistance section factor that compares, And two pull bars 12 should have identical seat, so that overall structure is relatively reliable.
When pull bar 12 has three, the configuration of three 12 one-tenth of pull bar isosceles triangles.It should be noted that because of the stamping press of punching press Not by the center of such as template 8, the center of gravity of power may be biased in the side of template 8, and with this understanding, bearing load is relative Larger side configures two pull bars 12, and bearing load keeps in mind less side and configures a pull bar 12.
When pull bar 12 is furnished with four, the quadrangularly of four-pull-rod 12(Rectangle)Arrangement, meets general mold arrangement, herein Repeat no more.
Further, the upper end of all pull bars 12 is fixedly mounted on the same upper beam 10 for being contained in mould drive device, The lower end of all pull bars 12 is fixedly mounted on same template 8, easily builds relatively reliable structure.
Template 8 is used for the assembling in upper mould drive device of upper mould 7.
In the construction shown in fig. 1, the heater of heater box 3 include installed in the bottom of heater box 3 heating rod 2 and Heating rod on heater box wall.
Heater 1 shown in Fig. 1 can provide heating fluid, and heating rod 2 is expressed as heating tube, the stability of fluid heating It is relatively good.
In Fig. 1, track is provided by T-slot, and T-slot is the conventional structure of workbench originally, only T-slot cross section ratio It is smaller, in the construction shown in fig. 1, the T-slot relatively wide equivalent to notch.T-slot is made up of trough with straight angle and left and right groove.
Wherein, the groove of left and right two respectively constitutes a track.
And the positioning mounting surface is located in the trough with straight angle of T-slot, in other words, positioning mounting surface is by trough with straight angle exposed to upper The lower section of mould 7.
The bottom land of T-slot is plane, and so-called track is title of drawing up, there is provided the groove of T-slot that plate 5 is supported and is oriented to Bottom and the side wall and upper wall surface of left and right groove.
Left and right groove can also provide the constraint on the vertical direction of plate 5.
Oil lubrication can be used between plate 5 and T-slot, lubricating oil can manually be coated, carried out in 6 feeding of workpiece The coating of lubricating oil, different from foregoing pull bar 12 and the vertical cooperation of guide hole 13.
It is plane engagement between the bottom land and seat 4 of T-slot, to improve the bearing capacity of plate 5, the load of plate 5 is by T-slot Bottom land directly support, different from for example simple guide rail, carried by track element, based on the present embodiment, can have and compare Bearing capacity high.
Can be that each seat 4 is configured using the design that can be disengaged with T-slot in preferred embodiment on plate 5 Multiple plates 5, after workpiece is in place, directly insert.
It is one 4 one plate 5 of configuration in other embodiments, the inner of plate 5 sets restrained structure, T-slot direction The end of bin gate is provided for constraining the constraint component of restrained structure, and the structure of plate 5 for being formed is analogous to drawer.
When using previous embodiment, i.e., plate 5 can be extracted out, have chamfering or rounding towards one end of bin gate, with Beneficial to the fast inserted of plate 5.
In the structure shown in Fig. 2, lower die driving device is fluid pressure type driving device, fluid pressure type driving device response speed It is slow, it is to be understood that, for punching press hot forming tool, the heating of workpiece needs the regular hour, within the short time, liquid Pressure driver part can be in place.
Fluid pressure type driving device is configured to:The backing plate or seat of lower mould 14 are arranged on the push rod of a heavy in section hydraulic cylinder, Lower mould 14 as shown in Figure 2, its lower end constitutes the piston of big cylinder body 16.
In the structure shown in Fig. 2, the one small bore plunger displacement pump of connection of big cylinder body 16, pressurized cylinder as shown in Figure 2 15, with Hydraulic oil needed for the hydraulic cylinder of heavy in section is provided.
Here heavy in section belongs to a pair relative concepts with small bore, and those skilled in the art should be understood.
According to hydraulic principle, according to formula F1/S1=F2/S2, really realize small pressure to the conversion of big pressure.The hydraulic pressure is former Typical case's application of reason is hydraulic jack, using a less plunger displacement pump, realizes raising for big cylinder body 16, that is, promote lower mould 14 Rise.
Preferably, the area of section of heavy in section hydraulic cylinder is not less than 30 with the area of section ratio of small bore plunger displacement pump, and not More than 50.
In the construction shown in fig. 1, the right and left of workpiece 6 has location structure, visible in figure, and lid location structure is muscle Shape structure, in some embodiments, it is also possible to using positioning pore structure.
Correspondingly, the muscle forming part aligned with upper mould 7 is provided with corresponding to the side of two tracks in positioning mounting surface, muscle is first molded Clamped for the positioning preceding in place of lower mould 14.

Claims (10)

1. a kind of magnesium alloy sheet punching press hot forming tool, it is characterised in that including:
Heater box, equipped with heater and equipped with bin gate;
Seat, installed in the bottom of heater box, and this is provided with two tracks towards bin gate, and perpendicular to the lower mould mistake of bottom Hole;
Plate, is flatly inserted on the seat by the track, and the plate is provided with the secondary via aligned with lower mould via;Insert The part that the upper surface of plate is located between two tracks has forming surface, and the forming surface also constitutes the positioning mounting surface of workpiece;
Upper mould, positioned at the top of seat;
Upper mould drive device, under connect mould;
Lower mould, contains the moulded head for being guided on lower mould via;And
Lower die driving device, above connects mould.
2. magnesium alloy sheet punching press hot forming tool according to claim 1, it is characterised in that upper mould drive device is located at The top of heater box;
Correspondingly, the top board of heater box is provided with guide hole;
Upper mould is connected by guide hole with upper mould drive device.
3. magnesium alloy sheet punching press hot forming tool according to claim 2, it is characterised in that driven with upper mould for upper mould The part of dynamic device connection is pull bar, and pull bar is furnished with 2 ~ 4, and the upper end of all pull bars is fixedly mounted on and is contained in mould driving dress On the same upper beam put, the lower end of all pull bars is fixedly mounted on same template;
Template is used for the assembling in upper mould drive device of upper mould.
4. the magnesium alloy sheet punching press hot forming tool according to Claims 2 or 3, it is characterised in that pull bar is led with described Hermetic seal is slidably matched between drawing hole.
5. according to any described magnesium alloy sheet punching press hot forming tool of claim 1 ~ 3, it is characterised in that heater box plus Thermal includes the heating rod and the heating rod on heater box wall installed in heater box bottom.
6. according to any described magnesium alloy sheet punching press hot forming tool of claim 1 ~ 3, it is characterised in that the track structure Make for:
In T-slot is formed with seat, the left and right groove of the T-slot respectively constitutes a track;
The positioning mounting surface is located in the trough with straight angle of T-slot.
7. magnesium alloy sheet punching press hot forming tool according to claim 6, it is characterised in that the bottom land and seat of T-slot Between be plane engagement.
8. magnesium alloy sheet punching press hot forming tool according to claim 6, it is characterised in that T-slot is towards bin gate One end has chamfering or rounding.
9. according to any described magnesium alloy sheet punching press hot forming tool of claim 1 ~ 3, it is characterised in that lower mould drives dress It is set to fluid pressure type driving device:
The backing plate or seat of lower mould are arranged on the push rod of a heavy in section hydraulic cylinder;
Heavy in section hydraulic cylinder connects a small bore plunger displacement pump, to provide hydraulic oil needed for the hydraulic cylinder of heavy in section;
The area of section of heavy in section hydraulic cylinder is not less than 30, and no more than 50 with the area of section ratio of small bore plunger displacement pump.
10. according to any described magnesium alloy sheet punching press hot forming tool of claim 1 ~ 3, it is characterised in that carried in positioning Put face and the muscle forming part aligned with upper mould is provided with corresponding to the side of two tracks, be first molded muscle for lower mould locating clip preceding in place Tightly.
CN201710253669.5A 2017-04-18 2017-04-18 Magnesium alloy sheet punching press hot forming tool Active CN106914544B (en)

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CN106914544B CN106914544B (en) 2019-01-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108356087A (en) * 2018-05-04 2018-08-03 刘旭玲 One kind being used for the hot worked pressurizing unit of aluminium

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Publication number Priority date Publication date Assignee Title
JPS59206200A (en) * 1983-05-06 1984-11-21 Mitsubishi Monsanto Chem Co Die for producing laminate and production of laminate
CN101130196A (en) * 2007-06-27 2008-02-27 江苏大学 Micro-plastic molding method and apparatus for micro-device
CN202479302U (en) * 2012-03-20 2012-10-10 南京麦驰钛业有限公司 Flanging formation device for titanium steel composite board container
CN103658448A (en) * 2012-09-25 2014-03-26 南通明光电线有限公司 Tableware forming machine facilitating heating
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CN106180428A (en) * 2016-08-31 2016-12-07 上海昭程整流子科技有限公司 The shell of moulding of a kind of diverter Mo Genmo is pressed into preheating mechanism automatically
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CN206622523U (en) * 2017-04-18 2017-11-10 济南大学 Magnesium alloy sheet punching press hot forming tool

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CN108356087A (en) * 2018-05-04 2018-08-03 刘旭玲 One kind being used for the hot worked pressurizing unit of aluminium

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