CN105195538A - Drawing oil circulating device and micro-positive pressure drawing die mechanism - Google Patents
Drawing oil circulating device and micro-positive pressure drawing die mechanism Download PDFInfo
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- CN105195538A CN105195538A CN201510638215.0A CN201510638215A CN105195538A CN 105195538 A CN105195538 A CN 105195538A CN 201510638215 A CN201510638215 A CN 201510638215A CN 105195538 A CN105195538 A CN 105195538A
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Abstract
The invention relates to a metal drawing forced lubrication die mechanism. The metal drawing forced lubrication die mechanism is characterized in that metal drawing plastic deformation can be carried out by the aid of the forced lubrication die mechanism. Lubrication media with certain viscosity flow through a die along with drawn metal workpieces during high-speed drawing and then are accumulated in a cavity of a pressurization sleeve and a pressurization zone in the cavity, the geometrical shape of the pressurization zone can be different along with the shapes of drawn metal, and positive pressures can be generated after the lubrication media are accumulated in the pressurization zone. The metal drawing forced lubrication die mechanism has the advantages that the lubrication media are forcedly compressed in spaces between the metal and the die under the effects of the pressures in continuous drawing procedures, oil films are formed between the surfaces of the metal and the inner walls of the die, the surfaces of the metal and the inner walls of the die are in indirect contact with one another in compression zones and set-diameter zones of the die under the lubrication effects of the oil films, accordingly, drawing frictional force can be reduced, plastic deformation technological conditions can be obviously improved for the metal, and the surface quality of the drawn and deformed metal can be greatly improved.
Description
Technical field:
The invention belongs to metal material preparation and manufacture field.In particular to the metal material formation of sea surface oil slick and effect of oil film when drawing plastic deformation, and oil film is on the impact of drawing metal surface quality.
Background technology:
Tradition drawing process refers under additional pulling force effect, makes metal works passing hole mould to obtain the plastic deformation processing method of required form and gauge articles.Metal drawing is the plastic deformation process under compression and stretcher strain acting in conjunction, and cold drawn forming is the main method preparing metal wire rod, tubing.Some new drawing process were there are in the last few years, as back tension drawing, roller die drawing, superplasticity dieless drawing, ultrasonic wave vibration drawing etc.
Drawing process forms sliding friction, and the frictional resistance produced has a great impact drawing quality, drawing precision and drawing speed.The quality problems produced during drawing solid metal have: face crack, centre burst, peeling, pockmark, play thorn, ectonexine mechanical performance is uneven etc.; The quality problems produced during drawing hollow metal have: surface tear, fold, bending, bias, crackle, broken end etc.Therefore, the frictional resistance that reduction drawing produces is the Main way improving and promote drawing quality, drawing precision and drawing speed.
Summary of the invention:
The present invention relates to a kind of forced feed lubrication mechanism of metal drawing deformation, as shown in Figure 1, this lubricating circulatory system 101 includes forced feed lubrication mechanism 10, fill the Work container 20 of lubricant medium 60, lubricant medium storage bin 30, lubricant medium circulating pump 40, greasing cycle connecting line 50, drawing metal works 70 and the metal works 71 through drawing.
Forced feed lubrication mold mechanism 10 involved in the present invention, is characterized in that metal drawing completes plastic deformation process via forced feed lubrication mold mechanism 10.As shown in Figure 2, forced feed lubrication mold mechanism 10 is placed in the Work container 20 filling lubricant medium 60, lubricant medium surface in Work container higher than by the outer surface of drawing metal 70, the lubricant medium in Work container 20 can under the circulatory system controls by connecting line 50 automatically interpolation also can manually add.
As shown in Figure 3, forced feed lubrication mold mechanism 10 is equipped with by mold base 7 and core rod 1 and forms.Be provided with front seam 8, rear seam 9 in mold base 7, core rod 1 be assemblied on mold base 7 by front seam 8 and rear seam 9 spacing and be fixed by flange 5 and flange bolt 6.Core rod 1 is equipped with by mould 2 and booster set 3 and forms, and mould 2 is assemblied in the front end of core rod 1, and booster set 3 is in the rear end of core rod 1.Booster set is made up of anallobar 4 and booster set cavity, and the front end of booster set 3 is anallobar rear end is cavity, and the center of mould 2 and booster set 3 and anallobar 4 keeps in the same horizontal line.Anallobar inner accumulated has the lubricant medium 60 of pressure-fired, and volume and the lubricant medium pressure of anallobar are inversely proportional to.
The operation principle of forced feed lubrication mold mechanism 10 be high speed drawing initial time, small part lubricant medium enters mould with certain viscosity or granularity with by drawing metal works, after mould, lubricant medium accumulates in the anallobar in booster set cavity, the geometry of anallobar because of different by the shape of drawing metal, as form of metal for anallobar time circular is horn-like.Volume and the lubricant medium pressure of anallobar are inversely proportional to, and lubricant medium forms normal pressure after anallobar gathers, and pressure limit is about 0.15MPa ~ 0.3MPa.Under certain drawing working condition, the volume of anallobar shape reasonable in design and control anallobar can modulate the scope of above-mentioned normal pressure.In the process of metal works continuous drawing, lubricant medium is pressed between metal works and mould under the effect of the pressure, oil film is formed between metal surface and mould inner wall, oil film thickness is relevant with the pressure of drawing speed and anallobar, control suitable oil film thickness and under the isolation and lubrication of oil film, metal surface and mould inner wall can form non-direct contact in mold work district, the frictional force that drawing is produced levels off to zero, thus significantly improve the process conditions of metal drawing deformation, improve the surface quality of metal drawing deformation greatly.
The universal architecture of metal drawing mould is made up of inlet region, workspace (also known as compressional zone), sizing area, outlet area, the surface that lubricant medium during metal drawing deformation is attached to metal works enters workspace via die entrance district, the oil film formed lubricates surface of workpiece, reduces the frictional force of metal surface and mould inner wall.Metal works 70, after the accurate drawing of above-mentioned lubricated dies system, derives forced feed lubrication mold mechanism 10 after continuing through the anti-friction covering device 11 of the nylon being located at forced feed lubrication mechanism tail end in lubricant medium.
Accompanying drawing illustrates:
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is greasing cycle circuit system 101 schematic diagram of the present invention, comprising: 1, forced feed lubrication mechanism unit 10; 2, lubricant medium Work container unit 20; 3, lubricant medium storage bin unit 30; 4, lubricant medium circulating pump unit 40; 5, greasing cycle connecting line unit 50; 6, lubricant medium 60; 7, the metal works 70 before drawing; 8, the metal works 71 after drawing.
Fig. 2 is the section of structure of lubricant medium Work container 20 of the present invention and forced feed lubrication mechanism 10.
Fig. 3 is forced feed lubrication mechanism 10 section of structure, comprising: 1, core rod 1; 2, mould 2; 3, booster set 3; 4, anallobar 4; 5, mold base 7; 6, seam 8 before mold base; 7, seam 9 after mold base; 8, the anti-friction covering device 11 of nylon; 9, flange bolt 6; 10, flange 5.
Detailed description of the invention:
Below in conjunction with drawings and Examples, such scheme is described further.These embodiments are interpreted as and the data that provide are not limited to for illustration of the present invention limit the scope of the invention at this.The implementation condition adopted in embodiment can do further adjustment according to concrete test or the working condition produced, and not marked implementation condition is generally the condition in normal experiment.
Embodiment: a kind of pressure mechanism of metal drawing deformation, is specifically related to greasing cycle circuit system 101.Lubricant medium is stored in storage bin 30, is added in lubricant medium Work container 20 by lubricant medium by circulating pump 40 through circulation connecting line 50.The forced feed lubrication mechanism 1O be made up of mold base 7 and core rod 1 is embedded in lubricant medium Work container 20, and it is spacing that drawing core rod 1 is assemblied in premenstrual seam 8 and rear seam 9 on mold base 7, then be fixed via flange 5 and flange bolt 6.Drawing mould 2 is assemblied in the front end of drawing core rod 1, and rear end is booster set 3, and the center of drawing mould 2, booster set and anallobar 4 keeps in the same horizontal line.
Metal works enters in lubricant medium Work container 20 after Anti-scratching sealing shroud, and is immersed in completely in lubricant medium.Plastic deformation is there is in metal works through drawing mould, the lubricant medium being attached to surface of workpiece enters the compressional zone of mould through die entrance district with workpiece, the lubricating oil film being attached to surface of the work plays lubrication buffer action to surface of the work during compressive deformation and mould inner wall, reduces the frictional force of surface of the work and mould inner wall.Subsequently, metal works after the sizing of mould sizing area through mould outlet district to the anallobar of booster set, pressure-fired (0.15MPa ~ 0.3MPa) lubricant medium 60 of anallobar inner accumulated covers the metal works entering booster set via shaping area and outlet area comprehensively.Metal works after drawing deformation leaves forced feed lubrication mechanism 10 via after the nylon Anti-scratching big envelope device 11 of mold base rear port, after Anti-scratching sealing shroud, leave lubricant medium Work container 20 again, complete the plastic deformation process of metal drawing under forced feed lubrication.
Above-mentioned example, only in order to technical conceive of the present invention and feature are described, its object is to allow the personage knowing this know-why fully can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All make according to Spirit Essence of the present invention equivalent transformation, decoration or modification, all should be encompassed within protection scope of the present invention.
Claims (3)
1. a forced feed lubrication mold mechanism, it is characterized in that forced feed lubrication mold mechanism is made up of mold base and core rod, core rod is made up of mould and booster set, forced feed lubrication mold mechanism is placed in the container filling lubricant medium, lubricant medium surface in container is higher than by the outer surface of drawing metal, and lubricant medium is added by circulating pump loop or automatically by manually adding.
2. forced feed lubrication mold mechanism according to claim 1, is provided with front seam and rear seam in its mold base, core rod be assemblied on mold base by front seam and rear seam spacing and be fixed by flange and flange bolt.
3. die assembly according to claim 1 is in the front end of core rod, rear end is booster set, booster set Inner Front End is anallobar rear end is cavity, anallobar inner accumulated has the lubricant medium of pressure-fired, the geometry of anallobar is because of different by the shape of drawing metal, volume and the lubricant medium pressure of anallobar are inversely proportional to, and the center of mould, booster set and anallobar in the same horizontal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638215.0A CN105195538A (en) | 2015-09-28 | 2015-09-28 | Drawing oil circulating device and micro-positive pressure drawing die mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638215.0A CN105195538A (en) | 2015-09-28 | 2015-09-28 | Drawing oil circulating device and micro-positive pressure drawing die mechanism |
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| CN105195538A true CN105195538A (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510638215.0A Pending CN105195538A (en) | 2015-09-28 | 2015-09-28 | Drawing oil circulating device and micro-positive pressure drawing die mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047353A (en) * | 2018-06-15 | 2018-12-21 | 黄山创想科技股份有限公司 | A kind of steel wire drawing coating applicator and the preprocess method using the device |
| CN114632836A (en) * | 2022-03-09 | 2022-06-17 | 攀枝花普锐升金属材料有限公司 | Film pressing method for titanium (IV) and titanium alloy wire for cold-heading fastener |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05154535A (en) * | 1991-12-10 | 1993-06-22 | Nippon Steel Corp | Method and mill for drawing wire with ultra high pressure lubrication |
| JP2009045663A (en) * | 2007-08-22 | 2009-03-05 | Showa Denko Kk | Apparatus and method for drawing metallic tube |
| CN202316607U (en) * | 2011-11-27 | 2012-07-11 | 季玉姣 | High-speed wire-drawing die |
| CN103331318A (en) * | 2013-06-08 | 2013-10-02 | 上海交通大学 | Multi-pass metal drawing device based on water lubrication drawing |
| CN203494917U (en) * | 2013-08-12 | 2014-03-26 | 江苏利华铜业有限公司 | Bi-metal forced lubrication die mechanism |
| CN204602849U (en) * | 2015-04-08 | 2015-09-02 | 天津九重开金属制品有限公司 | A kind of drawing apparatus with cooling body |
-
2015
- 2015-09-28 CN CN201510638215.0A patent/CN105195538A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05154535A (en) * | 1991-12-10 | 1993-06-22 | Nippon Steel Corp | Method and mill for drawing wire with ultra high pressure lubrication |
| JP2009045663A (en) * | 2007-08-22 | 2009-03-05 | Showa Denko Kk | Apparatus and method for drawing metallic tube |
| CN202316607U (en) * | 2011-11-27 | 2012-07-11 | 季玉姣 | High-speed wire-drawing die |
| CN103331318A (en) * | 2013-06-08 | 2013-10-02 | 上海交通大学 | Multi-pass metal drawing device based on water lubrication drawing |
| CN203494917U (en) * | 2013-08-12 | 2014-03-26 | 江苏利华铜业有限公司 | Bi-metal forced lubrication die mechanism |
| CN204602849U (en) * | 2015-04-08 | 2015-09-02 | 天津九重开金属制品有限公司 | A kind of drawing apparatus with cooling body |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047353A (en) * | 2018-06-15 | 2018-12-21 | 黄山创想科技股份有限公司 | A kind of steel wire drawing coating applicator and the preprocess method using the device |
| CN114632836A (en) * | 2022-03-09 | 2022-06-17 | 攀枝花普锐升金属材料有限公司 | Film pressing method for titanium (IV) and titanium alloy wire for cold-heading fastener |
| CN114632836B (en) * | 2022-03-09 | 2024-03-22 | 攀枝花普锐升金属材料有限公司 | Titanium and titanium alloy wire film pressing method for cold heading fastener |
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Application publication date: 20151230 |