CN103551477B - Forging oil press dedicated to piston rod, and forging method - Google Patents

Forging oil press dedicated to piston rod, and forging method Download PDF

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Publication number
CN103551477B
CN103551477B CN201310591616.6A CN201310591616A CN103551477B CN 103551477 B CN103551477 B CN 103551477B CN 201310591616 A CN201310591616 A CN 201310591616A CN 103551477 B CN103551477 B CN 103551477B
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Prior art keywords
forging
oil cylinder
slide block
master cylinder
edger
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CN103551477A (en
Inventor
焦伟祥
焦伟堂
焦晗
刘松伟
刘振泼
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Shandong Xinli Forging Co ltd
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To Help Peaceful Jinghua Environmental Protection Technology Co Ltd
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Abstract

The invention belongs to the technical field of a forging oil press and a forging method thereof, and discloses a forging oil press dedicated to a piston rod. The forging oil press is mainly characterized in the technical aspect by comprising a tail cross beam and a main oil cylinder beam connected with each other through a pull rod; a slide block moving along the pull rod is arranged on the pull rod; a main oil cylinder is arranged on the main oil cylinder beam; the top shaft of the main oil cylinder is connected with the slide block; a top pier mold is fixed at the front end of the slide block through a first oil cylinder; a workpiece insertion hole is formed in the tail cross beam; a fixed mold and a movable mold corresponding to the fixed mold are arranged on the side, near the slide block, of the workpiece insertion hole; the fixed mold is fixed with the tail cross beam through a second oil cylinder; a trimming mold is arranged on one side surface of the top pier mold. Before forging, all that is needed is to heat the front end part of a forge piece to be 1050 DEG C to 1200 DEG C, and integral heating of the forge piece is not required, so that heat energy is saved; only the head part of the forge piece is required to be forged, so that kinetic energy is saved.

Description

The special forge oil press of piston rod and forging method
Technical field
The invention belongs to forge oil press and forging method technical field, relate to the special forge oil press of piston rod and forging method concretely.
Background technology
In engineering machinery field, piston rod is widely used, and decides the service life of whole engineering machinery in the quality of piston rod quality and service life.The piston rod of current use mainly contains following several: one, foundry goods, and in use, intensity is low for this piston rod, and oil impregnate appears in bar portion, and service life is low, and head and junction, bar portion easily fracture; Its two, first forge head then weld, easily cause head to fracture; Its three, with coarse fodder by bar portion pull out, with mould, nose shape is forged, then trimming, in dead man process, need whole for body of rod high-temperature heating, and then with pole jack, the body of rod is pulled out, not only cause the waste of the heat energy energy, also cause power source to waste, production efficiency is low.
Summary of the invention
First technical problem that the present invention solves just is to provide that a kind of production efficiency is high, economize energy, production the special forge oil press of large, the oil proof piston rod of piston rod intensity.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is: comprise the afterbody crossbeam and master cylinder beam that are connected by pull bar, described pull bar is provided with the slide block along pull bar movement, described master cylinder beam is provided with master cylinder, the apical axis of described master cylinder is connected with described slide block, top pier mould is fixed with by the first oil cylinder in described slip front, described afterbody crossbeam is provided with workpiece jack, at workpiece jack, described slide block side is provided with fixed die and the movable mold corresponding with this fixed die, this movable mold is fixed by the second oil cylinder and afterbody crossbeam, pier mould side, described top is provided with edger.
Second technical problem that the present invention solves just is to provide a kind of method using the special forge oil press of above-mentioned piston rod to carry out forging piston rod.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is:
The method comprises the following steps:
The first step, adds hot forging leading section
Forging leading section is heated to 1050 DEG C---1200 DEG C;
Second step, reinforced
Forging is inserted in workpiece jack, and make forging leading section between fixed die and movable mold, stretch out the distance of fixed die and movable mold according to the volume of die cavity and the thickness design forging leading section of forging, start the second oil cylinder, forging is clamped;
3rd step, forging and stamping head
Start the first oil cylinder, top pier mould is adjusted to forging leading section corresponding, start master cylinder, band movable slider and top pier mould, to forging leading section, forge forging head;
4th step, merges sidesway after the pier mould of top
After having forged, move after master cylinder band movable slider and top pier mould, then by the first oil cylinder, top pier mould is removed, edger is moved to and forging head correspondence position simultaneously;
5th step, withstands on edger edge by forging head
By the second oil cylinder, movable mold is unclamped, forging reach is withstood on edger edge, again movable mold is held out against;
6th step, trimming
Start master cylinder, the reach of band movable slider, overlap cuts by edger;
7th step, slide block is return
Start master cylinder, by slide block and top pier mould and edger return;
8th step, takes out forging
Unclamp movable mold, forging is taken out from workpiece jack.
Its additional technical feature is:
Temperature when the first step adds hot forging head controls at 1120 DEG C---and 1140 DEG C.
The method of the special forge oil press of piston rod provided by the invention and forging piston rod, compared with the existing technology comparatively have the following advantages: one, owing to comprising the afterbody crossbeam and master cylinder beam that are connected by pull bar, described pull bar is provided with the slide block along pull bar movement, described master cylinder beam is provided with master cylinder, the apical axis of described master cylinder is connected with described slide block, top pier mould is fixed with by the first oil cylinder in described slip front, described afterbody crossbeam is provided with workpiece jack, at workpiece jack, described slide block side is provided with fixed die and the movable mold corresponding with this fixed die, this movable mold is fixed by the second oil cylinder and afterbody crossbeam, pier mould side, described top is provided with edger, before forging, only the leading section of forging need be heated to 1050 DEG C---1200 DEG C, do not need the heating of whole foundry goods entirety, save the heating power energy, and only need forge head, save power source, trimming subsequently after forging, save equipment investment, decrease taking of space, workshop, top pier mould moves and edger is moved to forging correspondence position after, first movable mold is opened, then forging will move to edger edge, then movable mold is fixed, avoiding edger skew causes forging to damage, and shortens the stroke of master cylinder, has saved the energy, its two, because temperature when adding hot forging head in the first step controls at 1120 DEG C---1140 DEG C, both ensure that the intensity of forging, and shortened again the time of forging, reduce forging pressure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the special forge oil press of piston rod;
Fig. 2 is the structural representation from the special forge oil press of the piston rod of another angular observation.
Detailed description of the invention
Be described further below in conjunction with the structure of accompanying drawing to the special forge oil press of piston rod proposed by the invention.
As depicted in figs. 1 and 2, be the structural representation of the special forge oil press of piston rod.Its structure comprises the afterbody crossbeam 2 and master cylinder beam 3 that are connected by pull bar 1, pull bar 1 is provided with the slide block 4 along pull bar 1 movement, master cylinder beam 3 is provided with master cylinder 5, the apical axis 6 of master cylinder 5 is connected with slide block 4, top pier mould 8 is fixed with by the first oil cylinder 7 in the front end of slide block 4, afterbody crossbeam 2 is provided with workpiece jack 9, at workpiece jack 9, slide block 4 side is provided with fixed die 11 and the movable mold 12 corresponding with this fixed die 11, this movable mold 12 is fixed by the second oil cylinder 13 and afterbody crossbeam 2, pier mould 8 side, described top is provided with edger 14.
Use the special forge oil press of above-mentioned piston rod to carry out forging the method for piston rod, the method comprises the following steps:
The first step, adds hot forging 10 leading section
Forging 10 leading section is heated to 1050 DEG C---1200 DEG C;
Second step, reinforced
Forging 10 is inserted in workpiece jack, and make forging leading section between fixed die 11 and movable mold 12, stretch out the distance of fixed die and movable mold according to the volume of die cavity and the thickness design forging leading section of forging 10, start the second oil cylinder, forging is clamped;
3rd step, forging and stamping head
Start the first oil cylinder 7, by corresponding for the leading section that top pier mould 8 is adjusted to forging 10, start master cylinder 5, band movable slider 4 and pier mould 8 to forging 10 leading section, top, forge forging head;
4th step, merges sidesway after the pier mould of top
After having forged, master cylinder 5 moves after being with movable slider 4 and top pier mould 8, is then removed by top pier mould 8 by the first oil cylinder 7, is moved to by edger 8 and forging head correspondence position simultaneously;
5th step, withstands on edger 14 edge by forging head
By the second oil cylinder 13, movable mold 12 is unclamped, forging reach is withstood on edger 14 edge, again movable mold 12 is held out against;
6th step, trimming
Start master cylinder 5, band movable slider 4 moves forward, and overlap cuts by edger 14;
7th step, slide block is return
Start master cylinder 5, slide block 4 and top pier mould 8 and edger 14 are return;
8th step, takes out forging
Unclamp movable mold, forging is taken out from workpiece jack.
Before forging, only the leading section of forging 10 need be heated to 1050 DEG C---1200 DEG C, do not need the heating of whole foundry goods entirety, save the heating power energy, and only need forge head, save power source, trimming subsequently after forging, has saved equipment investment, decreases taking of space, workshop; Top pier mould moves and edger is moved to forging correspondence position after, first movable mold is opened, then forging will move to edger edge, then movable mold is fixed, avoiding edger skew causes forging to damage, and shortens the stroke of master cylinder, has saved the energy.
Temperature when the first step adds hot forging head controls at 1120 DEG C---and 1140 DEG C, both ensure that the intensity of forging, and shortened again the time of forging, reduce forging pressure.
Protection scope of the present invention is not only confined to above-described embodiment, as long as structure is identical with inventive piston bar special forge oil press structure, just drops on the scope of protection of the invention.

Claims (3)

1. the special forge oil press of piston rod, it is characterized in that: comprise the afterbody crossbeam and master cylinder beam that are connected by pull bar, described pull bar is provided with the slide block along pull bar movement, described master cylinder beam is provided with master cylinder, the apical axis of described master cylinder is connected with described slide block, top pier mould is fixed with by the first oil cylinder in described slip front, described afterbody crossbeam is provided with workpiece jack, at workpiece jack, described slide block side is provided with fixed die and the movable mold corresponding with this fixed die, this movable mold is fixed by the second oil cylinder and afterbody crossbeam, pier mould side, described top is provided with edger.
2. use the special forge oil press of piston rod according to claim 1 to carry out the method for forging, it is characterized in that: the method comprises the following steps:
The first step, adds hot forging head
Forging head is heated to 1050 DEG C---1200 DEG C;
Second step, reinforced
Forging is inserted in workpiece jack, and make forging head between fixed die and movable mold, start the second oil cylinder, forging is clamped;
3rd step, forging and stamping head
Start the first oil cylinder, top pier mould is adjusted to forging head corresponding, start master cylinder, band movable slider and top pier mould, to forging head, forge forging head;
4th step, merges sidesway after the pier mould of top
After having forged, move after master cylinder band movable slider and top pier mould, then by the first oil cylinder, top pier mould is removed, edger is moved to and forging head correspondence position simultaneously;
5th step, withstands on edger edge by forging head
By the second oil cylinder, movable mold is unclamped, forging reach is withstood on edger edge, again movable mold is held out against;
6th step, trimming
Start master cylinder, the reach of band movable slider, overlap cuts by edger;
7th step, slide block is return
Start master cylinder, by slide block and top pier mould and edger return;
8th step, takes out forging
Unclamp movable mold, forging is taken out from workpiece jack.
3. forging method according to claim 2, is characterized in that: the temperature when the first step adds hot forging head controls at 1120 DEG C---1140 DEG C.
CN201310591616.6A 2013-11-22 2013-11-22 Forging oil press dedicated to piston rod, and forging method Active CN103551477B (en)

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Application Number Priority Date Filing Date Title
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CN103551477B true CN103551477B (en) 2015-06-24

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108500188A (en) * 2018-03-27 2018-09-07 邓州市良机锻压设备制造有限公司 A kind of special forging equipment of coal mine hydraulic supporting cylinder barrel and forging method
CN109986007A (en) * 2019-04-26 2019-07-09 青岛勤德索具有限公司 A kind of shackle pier ball blank machine and its application method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007055254A1 (en) * 2005-11-09 2007-05-18 Honda Motor Co., Ltd. Method and device for manufacture of connecting rod
JP2011056531A (en) * 2009-09-09 2011-03-24 Kyb Co Ltd Method for manufacturing piston rod
CN101774006A (en) * 2009-12-22 2010-07-14 高禹丰 Four-post vertical hydraulic equipment used for liquid metal casting and forging molding
CN202910388U (en) * 2012-10-29 2013-05-01 成都思诚机电设备有限公司 Unilateral forging hydraulic stock cutter
CN203526431U (en) * 2013-11-22 2014-04-09 焦伟祥 Special oil hydraulic forging press for piston rod

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Inventor after: Jiao Han

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Address after: 272106 north of ChenWang village, Xiaomeng Town, Yanzhou District, Jining City, Shandong Province

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Address before: 272106 north of ChenWang village, Xiaomeng Town, Yanzhou District, Jining City, Shandong Province

Patentee before: Shandong Xinwang Forging Co.,Ltd.