CN103191945A - Method and device for high-pressure hydraulic flange plasticity forming - Google Patents

Method and device for high-pressure hydraulic flange plasticity forming Download PDF

Info

Publication number
CN103191945A
CN103191945A CN2012100134350A CN201210013435A CN103191945A CN 103191945 A CN103191945 A CN 103191945A CN 2012100134350 A CN2012100134350 A CN 2012100134350A CN 201210013435 A CN201210013435 A CN 201210013435A CN 103191945 A CN103191945 A CN 103191945A
Authority
CN
China
Prior art keywords
die
ring
cushion block
mold
drift
Prior art date
Application number
CN2012100134350A
Other languages
Chinese (zh)
Inventor
王亚军
Original Assignee
江苏舒恒管夹制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏舒恒管夹制造有限公司 filed Critical 江苏舒恒管夹制造有限公司
Priority to CN2012100134350A priority Critical patent/CN103191945A/en
Publication of CN103191945A publication Critical patent/CN103191945A/en

Links

Abstract

The invention discloses a method and a device for high-pressure hydraulic flange plasticity forming. The device comprises an upper mold part, a lower mold part, a discharging device, a female mold cooling device and a guiding device. A cone at a lower end of a punch of the upper mold part has 5 degrees of a cone angle. A female mold of the lower mold part is in an interference fit relationship with a prestress ring; an interference value is in a range of 0 to 0.15mm; and a cavity draft is 3 degrees. A raw blank is subjected to soft annealing treatment, then is subjected to surface treatment and heating, and then is put into an extrusion mold to form a flange outline part. The surface treatment is phosphatization saponification surface treatment. A warm plastic formation temperature of the raw blank is in a range of 500 to 800 DEG C and a warm extrusion heating formation temperature is equal to the blank formation temperature. The method and the device realize high formation quality and a fine and uniform microstructure, adopt a warm extrusion technology, reduce a formation force, shorten process time, adopt a lower mold water cooling technology, and reduce the influence produced by lower mold thermal deformation on a plasticity forming precision.

Description

High-pressure and hydraulic flange plastic molding method and device
Technical field
The present invention relates to Hydraulic Field, refer in particular to a kind of high-pressure and hydraulic flange plastic molding method and device.
Background technology
Flange is a kind of pipe and interconnective part of pipe of making, and has obtained in fields such as petroleum pipeline, chemical industry, aqueducts using widely.The conventional method of manufacturing flange mainly contains casting, rolls method, forging method etc.The defective that cast flange exists is more, should not be as the high-intensity flange of high pressure such as pore, burning into sand, trachoma etc., and practical application is subjected to certain restriction.It is long to roll the method process time, and very easily waste material rolls the back distortion seriously, the leveling difficulty, and need the multiple tracks subsequent handling to handle, this has just strengthened manufacturing cost.The flange that adopts plastic forming process (warm extrusion pressure) to make, have save a large amount of manpower and materials, forming speed is fast, production efficiency is high, technological process is simple, equipment investment is few, do not have advantages such as cutting, thereby and the dense structure of material can improve the toughness of flange, more suitable important events, and environment do not had negative effect, meet the social trend of green manufacturing.Improve though in the existing technology existing bending method is made flange technology, the serious phenomenon of distortion in the bending method is not resolved, distortion back leveling difficulty, and operation such as also need to weld, its process time is long, and complex process has strengthened manufacturing cost.
Summary of the invention
The object of the present invention is to provide a kind of high-pressure and hydraulic flange plastic molding method and device, the whole Plastic Forming of flange, mechanical strength height, manufacturing process are simple, have no machining, the forming quality height, the intensity height, production cost is low, characteristics such as production efficiency height.
Implementing technical scheme of the present invention is:
A kind of high-pressure and hydraulic flange plastic molding method and device, its device comprise part of the upper die, part of the lower die, device for discharging, die cooling device and guider.
Described part of the upper die is made up of upper bolster, last cushion block outer ring, hexagon socket head cap screw, patrix cushion block, punch, drift outer ring, upper molded plate.Punch clamps and is bearing on the patrix cushion block by the drift outer ring, the patrix cushion block has the drift outer ring to entangle outward, be bearing on the upper bolster lower surface, the drift outer ring is by hexagon socket head cap screw and the fastening one of upper bolster, and the drift outer ring is fastened as one by hexagon socket head cap screw and last cushion block outer ring by upper molded plate.Wherein, described punch is characterised in that the circular cone of drift lower end has 5 ° cone angle.
Described part of the lower die is made up of push piece bar, counterdie outer ring, counterdie cushion block, push rod, die shoe, die, shrink ring, pipe joint.Die is with shrink ring outward and is positioned at the top of counterdie cushion block, and the counterdie cushion block is with the counterdie outer ring outward, and the counterdie outer ring combines as a whole with die shoe by hexagon socket head cap screw.Wherein, described die is characterised in that die and shrink ring adopt interference fit, and the magnitude of interference is 0~0.15mm, and the die cavity draw taper is 3 °.
In the described device for discharging, push rod is bearing on the push piece bar.
In the described die cooling device, the inwall of shrink ring offers some annular water tanks, and makes an opening through vertical slot and open apopore, and cooling water is injected toward water inlet pipe, in inner loop winding number week, takes away the heat of die, is flowed out by delivery port to enter cooling device again.In this mould, the flow of cooling water direction under go out on advancing, cooling water pipe is used with the bore flexible pipe and is linked to each other with pipe joint.
Described guider is made up of guide pillars and bushes, and guide pin bushing and upper bolster adopt interference fit, and the bottom of guide pillar and die shoe guide pillar hole interference fit adopt matched in clearance between guide pillar and the guide pin bushing.
Further specify, with the annealed softening processing of original blank, and then through putting into extrusion die be shaped the outline portion of flange after surface treatment and the heating.
Described surface treatment is phosphatization saponification surface treatment.
The warm Plastic Forming temperature of described blank is between 500 ℃~800 ℃, and warm extrusion presses the heating forming temperature consistent with the blank forming temperature.
Implement the present invention and carry out following steps:
1) earlier the mould that assembles is placed on the press bench, the beginning punch is in upper limit position, and device for discharging is in the lower position, and die and punch are in released state;
2) make blank on request, described blank is cylindrical column, and blank is handled by the technological requirement annealing softening, with the hardness that reduces material, eliminate internal stress and obtain favorable tissue;
3) blank is carried out phosphatization saponification surface treatment, reduce the wear rate of extruding force and mould;
4) by the technological requirement heating, described blank temperature Plastic Forming temperature is between 500 ℃~800 ℃, and warm extrusion presses the heating forming temperature consistent with the blank forming temperature.
5) open external cooling water valve, cooling water is flow in the groove of shrink ring inwall, counterdie is cooled off;
6) blank after will heating places in the die, and the slide block of forcing press acts on downwards, and punch enters die, makes blank generation plastic deformation, processes the flange workpiece;
7) after shaping finished, the press ram backhaul drove drift and withdraws from from die, and device for discharging ejects workpiece by push rod from die, finish a working cycles.
Enforcement the invention has the beneficial effects as follows: flange forming quality height, even tissue refinement, the mechanical property of raising blank; Adopt warm extrusion to press technology, plastic force reduces, and process time is short, and forming speed is fast; Counterdie adopts water cooling, has reduced counterdie because of the influence of thermal deformation to the flange forming accuracy.
Description of drawings
The apparatus structure schematic diagram of Fig. 1 Plastic Forming of the present invention
Punch schematic diagram among Fig. 2 the present invention
Die schematic diagram among Fig. 3 the present invention; Wherein a is front view, and b is vertical view
1-upper bolster, the last cushion block of 2-outer ring, 3-hexagon socket head cap screw, 4-patrix cushion block, 5-punch, 6-drift outer ring, 7-guide pin bushing, 8-guide pillar, 9-upper molded plate, 10-push piece bar, 11-counterdie outer ring, 12-counterdie cushion block, 13-push rod, 14-die shoe 15-die, 16-shrink ring, 17-pipe joint, 18-workpiece.
Specific embodiments
Describe the present invention in detail below in conjunction with accompanying drawing.
A kind of high-pressure and hydraulic flange plastic molding method and device comprise part of the upper die, part of the lower die, device for discharging, die cooling device and guider;
Described part of the upper die is made up of upper bolster 1, last cushion block outer ring 2, hexagon socket head cap screw 3, patrix cushion block 4, punch 5, drift outer ring 6, upper molded plate 9.Punch 5 clamps and is bearing on the patrix cushion block 4 by drift outer ring 6, there is drift outer ring 6 to entangle outside the patrix cushion block 4, be bearing on upper bolster 1 lower surface, drift outer ring 6 is by hexagon socket head cap screw 3 and upper bolster 1 fastening one, and drift outer ring 6 is fastened as one by hexagon socket head cap screw 3 and last cushion block outer ring 2 by upper molded plate 9.Wherein, described punch 5 is characterised in that the circular cone of drift 5 lower ends has 5 ° cone angle.
Described part of the lower die is made up of push piece bar 10, counterdie outer ring 11, counterdie cushion block 12, push rod 13, die shoe 14, die 15, shrink ring 16, pipe joint 17.The die 12 outer tops that are with shrink ring 16 and are positioned at counterdie cushion block 12 are with counterdie outer ring 11 outside the counterdie cushion block 12, and counterdie outer ring 11 combines as a whole with die shoe 14 by hexagon socket head cap screw 3.Wherein, described die 12 is characterised in that die 12 adopts interference fit with shrink ring 16, and the magnitude of interference is 0~0.15mm, and the die cavity draw taper is 3 °
In the described device for discharging, push rod 13 is bearing on the push piece bar 10.
In the described die cooling device, the inwall of shrink ring 16 offers some annular water tanks, and makes an opening through vertical slot and open apopore, cooling water is injected toward water inlet pipe, in inner loop winding number week, take away the heat of die 15, enter cooling device again by the delivery port outflow.In this mould, the flow of cooling water direction under go out on advancing, cooling water pipe is used with the bore flexible pipe and is linked to each other with pipe joint 17.
Described guider is made up of guide pillar 8 and guide pin bushing 7, and guide pin bushing 7 adopts interference fit with upper bolster 1, and the bottom of guide pillar 8 and die shoe 14 guide pillar hole interference fit adopt between guide pillar 8 and the guide pin bushing 7 to be slidingly matched.
Concrete implementation step is:
1) device that will assemble earlier places on the press bench, and beginning punch 5 is in upper limit position, and device for discharging is in the lower position, and die 15 is in released state with punch 5;
2) make blank on request, described blank is cylindrical column, and blank is handled by the technological requirement annealing softening, with the hardness that reduces material, eliminate internal stress and obtain favorable tissue;
3) blank is carried out phosphatization saponification surface treatment, reduce the wear rate of extruding force and mould;
4) by the technological requirement heating, described blank temperature Plastic Forming temperature is between 500 ℃~800 ℃, and warm extrusion presses the heating forming temperature consistent with the blank forming temperature.
5) open external cooling water valve, cooling water is flow in the groove of shrink ring inwall, counterdie is cooled off;
6) blank after will heating places in the die 15, and the slide block of forcing press acts on downwards, and punch 5 enters die 15, makes blank generation plastic deformation, processes the flange workpiece;
7) after shaping finished, the press ram backhaul drove drift 5 and withdraws from from die 15, and device for discharging ejects workpiece 18 by push rod 13 from die 15, finish a working cycles.

Claims (7)

1. a high-pressure and hydraulic flange plastic molding method and device, its device comprises the part of the upper die, the part of the lower die, device for discharging, die cooling device and guider, it is characterized in that described part of the upper die is by upper bolster, last cushion block outer ring, hexagon socket head cap screw, the patrix cushion block, punch, the drift outer ring, upper molded plate is formed, punch clamps and is bearing on the patrix cushion block by the drift outer ring, the patrix cushion block has the drift outer ring to entangle outward, be bearing on the upper bolster lower surface, the drift outer ring is by hexagon socket head cap screw and the fastening one of upper bolster, the drift outer ring is fastened as one by hexagon socket head cap screw and last cushion block outer ring by upper molded plate, described part of the lower die is by the push piece bar, the counterdie outer ring, the counterdie cushion block, push rod, die shoe, die, shrink ring, pipe joint is formed, die is with shrink ring outward and is positioned at the top of counterdie cushion block, the counterdie cushion block is with the counterdie outer ring outward, the counterdie outer ring combines as a whole with die shoe by hexagon socket head cap screw, in the described device for discharging, push rod is bearing on the push piece bar, described guider is made up of guide pillars and bushes, guide pin bushing and upper bolster adopt interference fit, the bottom of guide pillar and die shoe guide pillar hole interference fit adopt matched in clearance between guide pillar and the guide pin bushing.
2. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device is characterized in that described punch is characterised in that, the circular cone of drift lower end has 5 ° cone angle.
3. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device is characterized in that described die die and shrink ring adopt interference fit, and the magnitude of interference is 0~0.15mm, and the die cavity draw taper is 3 °.
4. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device, it is characterized in that in the described die cooling device, the inwall of shrink ring offers some annular water tanks, and make an opening through vertical slot and open apopore, cooling water is injected toward water inlet pipe, flowed out by delivery port and to enter cooling device again, the flow of cooling water direction under go out on advancing, cooling water pipe is used with the bore flexible pipe and is linked to each other with pipe joint.
5. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device, it is characterized in that the annealed softening processing of described original blank, and then through putting into extrusion die be shaped the outline portion of flange after surface treatment and the heating.
6. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device is characterized in that described surface treatment is phosphatization saponification surface treatment.
7. a kind of high-pressure and hydraulic flange plastic molding method according to claim 1 and device is characterized in that the warm Plastic Forming temperature of described blank is between 500 ℃~800 ℃.
CN2012100134350A 2012-01-10 2012-01-10 Method and device for high-pressure hydraulic flange plasticity forming CN103191945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100134350A CN103191945A (en) 2012-01-10 2012-01-10 Method and device for high-pressure hydraulic flange plasticity forming

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100134350A CN103191945A (en) 2012-01-10 2012-01-10 Method and device for high-pressure hydraulic flange plasticity forming

Publications (1)

Publication Number Publication Date
CN103191945A true CN103191945A (en) 2013-07-10

Family

ID=48714863

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012100134350A CN103191945A (en) 2012-01-10 2012-01-10 Method and device for high-pressure hydraulic flange plasticity forming

Country Status (1)

Country Link
CN (1) CN103191945A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447340A (en) * 2013-08-27 2013-12-18 中国兵器科学研究院宁波分院 Pre-diverging-wedge pressing precision forming die and disc forming method
CN103551439A (en) * 2013-11-12 2014-02-05 张有龙 Non-pollution cold extruding molding method and cold extruding mould for packaging container flange
CN104070079A (en) * 2014-06-20 2014-10-01 宁国市瑞普密封件有限公司 Novel die
CN104148889A (en) * 2014-07-07 2014-11-19 河南科技大学 Square plate shell blank forming method and matched forming dies thereof
CN104759847A (en) * 2015-03-31 2015-07-08 常州大学 Thermal extruding forming method and device for chain wheel
CN105478511A (en) * 2015-12-25 2016-04-13 青海模具制造科技有限公司 Extrusion die
CN105478512A (en) * 2015-12-28 2016-04-13 青海模具制造科技有限公司 Extrusion die
CN106391867A (en) * 2016-11-08 2017-02-15 上海电机学院 Male flange die and manufacturing method thereof
CN107116166A (en) * 2016-12-29 2017-09-01 宜昌华益工具制造股份有限公司 A kind of sleeve processing device and technique
CN108500075A (en) * 2018-04-20 2018-09-07 北京航星机器制造有限公司 A kind of aluminium alloy flange disk heating tube hot type mold and its extrusion forming method
CN108655198A (en) * 2018-08-19 2018-10-16 重庆泰山电缆有限公司 A kind of crowded aluminum die locking member and improve aluminum-extruding machine die sleeve deformation method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130724A (en) * 1981-02-03 1982-08-13 Sumikin Kiko Kk Manufacture of flanged joint
CN1213593A (en) * 1997-10-07 1999-04-14 邓晓光 Semi-shaft jacket heat extruding shaping tech.
CN102205356A (en) * 2010-03-30 2011-10-05 陆颂荫 Cold extrusion die for double end pipe joint

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130724A (en) * 1981-02-03 1982-08-13 Sumikin Kiko Kk Manufacture of flanged joint
CN1213593A (en) * 1997-10-07 1999-04-14 邓晓光 Semi-shaft jacket heat extruding shaping tech.
CN102205356A (en) * 2010-03-30 2011-10-05 陆颂荫 Cold extrusion die for double end pipe joint

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
韩建业等: "液压管接头冷挤压成形技术", 《锻压技术》, no. 5, 25 October 2006 (2006-10-25), pages 104 - 107 *
黄诗君: "不锈钢管接头成形工艺分析及模具设计", 《模具工业》, no. 2, 25 February 2005 (2005-02-25), pages 29 - 32 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447340A (en) * 2013-08-27 2013-12-18 中国兵器科学研究院宁波分院 Pre-diverging-wedge pressing precision forming die and disc forming method
CN103447340B (en) * 2013-08-27 2015-07-22 中国兵器科学研究院宁波分院 Pre-diverging-wedge pressing precision forming die and disc forming method
CN103551439A (en) * 2013-11-12 2014-02-05 张有龙 Non-pollution cold extruding molding method and cold extruding mould for packaging container flange
CN104070079A (en) * 2014-06-20 2014-10-01 宁国市瑞普密封件有限公司 Novel die
CN104148889A (en) * 2014-07-07 2014-11-19 河南科技大学 Square plate shell blank forming method and matched forming dies thereof
CN104759847A (en) * 2015-03-31 2015-07-08 常州大学 Thermal extruding forming method and device for chain wheel
CN105478511A (en) * 2015-12-25 2016-04-13 青海模具制造科技有限公司 Extrusion die
CN105478512A (en) * 2015-12-28 2016-04-13 青海模具制造科技有限公司 Extrusion die
CN106391867A (en) * 2016-11-08 2017-02-15 上海电机学院 Male flange die and manufacturing method thereof
CN107116166A (en) * 2016-12-29 2017-09-01 宜昌华益工具制造股份有限公司 A kind of sleeve processing device and technique
CN108500075A (en) * 2018-04-20 2018-09-07 北京航星机器制造有限公司 A kind of aluminium alloy flange disk heating tube hot type mold and its extrusion forming method
CN108655198A (en) * 2018-08-19 2018-10-16 重庆泰山电缆有限公司 A kind of crowded aluminum die locking member and improve aluminum-extruding machine die sleeve deformation method

Similar Documents

Publication Publication Date Title
RU2374721C2 (en) Method and device for making lead-acid accumulator terminal, and terminal made using said method and device
CN102240774B (en) Fine forging forming method of spiral bevel gears
CN101332488B (en) Cold-forging technique of gear shaft
CN106734841B (en) A kind of multidirectional precision forming device of I-shaped stainless steel body of double flanges
CN106077257B (en) Almag wheel hub moulding process and equipment
CN100441369C (en) Directional axial conical standpipe process of motorcycle by disposable cold extruding formative machining
CN101332476B (en) Precise extrusion molding method of thin wall long-pipe shaped parts bland and special mould
CN101695739B (en) Forging process of large tee and large skew tee
CN101767164A (en) Method for producing thin-wall metal circular ring and grading stamping mould used therefor
CN201082440Y (en) Metal round tube trimming device
CN105252230B (en) Machining process for inclined tee
CN106623941B (en) A kind of powder metallurgy superalloy element stages heating squeezes control shape method
CN102319846B (en) Method for forming precision forging billet of output spline shaft of automobile automatic transmission
CN105880310B (en) A kind of mould and forming method of the hollow magnesium alloy profiles of Ultra-fine Grained
CN103464562A (en) Cavity low-internal-pressure forming method
CN104117547A (en) Continuous extrusion die of warm extrusion gear stick and machining method thereof
CN104139279B (en) The manufacturing process of interior trapezoidal grooved ring shape part
CN203900355U (en) Combined die for precise forging production of camshaft gear blanks
CN104525675B (en) Gas bulging hot formation process of boron steel tube
CN204953630U (en) Ejecting formula blanking die
CN104028952B (en) High-pressure common rail system oil injecting nozzle block forming technology
CN102319808B (en) Hot stamping mould for nut
CN102335810B (en) Method for forming precise slender internal spline tube
CN205466988U (en) Take metal insert's conical cylindrical workpiece forming die
CN201371227Y (en) Electric motor rotor die-casing mold

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130710

C02 Deemed withdrawal of patent application after publication (patent law 2001)