CN103611860B - Metal axial roller-grinding forming machine and roller-grinding forming technique thereof - Google Patents
Metal axial roller-grinding forming machine and roller-grinding forming technique thereof Download PDFInfo
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- CN103611860B CN103611860B CN201310619568.7A CN201310619568A CN103611860B CN 103611860 B CN103611860 B CN 103611860B CN 201310619568 A CN201310619568 A CN 201310619568A CN 103611860 B CN103611860 B CN 103611860B
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- 239000002184 metal Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005242 forging Methods 0.000 claims description 33
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- 238000000465 moulding Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
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- 238000005520 cutting process Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
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- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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Abstract
The invention discloses a metal axial roller-grinding forming machine and a roller-grinding forming technique thereof. The metal axial roller-grinding forming machine comprises a rotary device, an upper mold, an upper mold guide pillar, a lower mold, an ejector rod and a lifting working platform. According to the metal axial roller-grinding forming machine, cone-shaped rollers can revolve along the central axes of the cone-shaped rollers, the number of the cone-shaped rollers is two, the two cone-shaped rollers are arranged symmetrically about the axis of a main rotary shaft, the two cone-shaped rollers rotate along the main rotary shaft and are arranged in the middle of the upper surface of the upper mold, the upper mold guide pillar is arranged on the edge of the upper mold, the upper mold is fixed to a machine frame through the upper mold guide pillar, the lower mold is fixed to the lifting working platform and can move up and down along with rising and falling of the lifting working platform, the working platform has a fast rising and falling function, a fast feeding function and a fast ejecting function, the top of the ejector rod corresponds to a workpiece position on the lower mold, and the bottom of the ejector rod is connected with an ejector hydraulic cylinder. According to the metal axial roller-grinding forming machine and the roller-grinding forming technique thereof, extrusion full contact or swing-grinding local contact for forming is replaced by the line contact between the cone-shaped rollers and the upper end face of the upper mold, the rotating power of the main shaft is reduced, power consumption is reduced, the service life of a bearing of the main shaft is prolonged, and cost is reduced.
Description
Technical field
The present invention relates to a kind of metal axial roller and grind forming technology, particularly relate to the forming technique of a kind of revolution and non-rotating, belong to metal forging technical field.
Background technology
Metal axial roller is ground into shape technological principle and feature: it is utilize conical punch to a part of surface-pressure of forging stock that roller grinds, along with punch is around the rolling of the centre of gyration, this part pressor areas, along blank circumference continuous rotary, makes forging stock progressively produce and is out of shape and the one being pressed into impression and being finally shaped forging and stamping new technology.The outstanding feature that roller grinds is the bulk deformation replacing common Forging Technology with continuous print local deformation, and its roller grinds the 1/10-1/15 that power is only common Forging Technology, therefore, can grind larger forging with skinny device roller.
The revolving meber of existing large-size or non-rotating forging or die-forging forming need the forging equipment of super-tonnage.Through multicomputer distortion after high ferro locomotive main motor car wheel blank heating, utilize multiple roll mill for rolling center disctype wheels to become base to be current traditional handicraft, equipment investment is hundreds of millions of.Basin at the bottom of large-tonnage K shape or spherical bridge pad, top board, middle liner plate blank due to base limited and use Mechanical processing of casting instead, reduce its performance.The hot rotary forging press of existing largest domestic only form diameter within 1000mm, weight is at square, the circle part base of below 1t; The forging equipment that 1000mm, weight can only use super-tonnage more than the blank of 1t if be greater than, and the investment of large-tonnage forging equipment is higher, causes the economy of final production finished product to reduce.
In order to solve the high problem of large-tonnage forging equipment cost, if application number is 201310281180.0, publication No. is CN103317073, name is called the Chinese invention patent of " a kind of sphere pendulous device for large-scale rotary forging press ", disclose a kind of large-scale rotary forging press in that patent, its axle is drift angle Analysis of Nested Design, driving gearbox is fixedly connected with the drift angle sleeve system in holder with terminal pad by driving long key, described drift angle cover axial center is oscillating spindle, oscillating spindle lower end is bulb and yaw, and realizes being rotationally connected by the cooperation of bulb and ball bowl.This large-scale rotary forging press can realize the processing to large scale blank, but owing to adopting the axle system of drift angle cover, because there is spindle eccentricity phenomenon, when workpiece size is greater than the chord length of spherical bearing pair, the moment that main shaft bears easily makes that main shaft destroys, torsional fracture phenomenon, reduce Main Shaft Service Life, increase product cost, and limit the manufacture of large-size, larger weight blank.
In addition, application number as Wuhan University of Technology's application is 201010154589.2, publication No. is CN101823110, name is called the patent of invention of " twin-roller rotary-forging machine ", it discloses a kind of equipment that can carry out axially local rotary roll to rotating body parts, it specifically discloses a kind of twin-roller rotary-forging machine, comprise fuselage, rotating mechanism, two roller arrangement and carriage, wherein, two roller arrangement includes a pair clutch shaft bearing seat symmetrically arranged relative to the axial line of main shaft, first thrust bearing, roll mandrel and roll, clutch shaft bearing seat is connected by the second fastening bolt with main shaft, the first flat key is provided with between clutch shaft bearing seat and main shaft, roll mandrel is installed in clutch shaft bearing seat, the large end face of roll mandrel is fixed on stiffener, the end face of roll is provided with the hexagon boss matched with hexagon pit.This device can realize localized accumulated axial rolling roller to rotating body parts and grind accumulation forming, therefore, it is possible to replacement ordinary press, and adopt the roll of a pair symmetry, roll rotates around the axis while rotating around symmetry axis, realizes the axis roll-in accumulated deformation to the part that is formed.The twin-roller rotary-forging machine of this structure, due to direct and absorption surface, therefore, is merely able to the component shaping to rotational structure, grind in process equipment operation at two roller pendulum, the direct Metal Contact with heating of patrix, patrix easily suffers that destruction makes patrix service life reduction, increases cost of goods manufactured.Meanwhile, because two roller can come in contact with workpiece, two roller pendulum stone roller equipment is caused to produce revolving meber.
Summary of the invention
The object of the invention is to: provide a kind of metal axial roller to grind forming machine and roller stone roller moulding process thereof, solve the Problems in forming that existing rotary forging press is merely able to centering, small size rotational workpieces and middle or small non-rotating, break through the processing such as size, the weight range restriction of work piece.
The object of the invention is realized by following process program: a kind of metal axial roller grinds forming machine, it comprises whirligig, patrix, patrix lead, counterdie, knock-pin and self-powered platform, this whirligig comprises cone-shaped roll and rotary main shaft, described cone-shaped roll can along the axis rotation of self, this cone-shaped roll is two, be symmetrical arranged relative to the axial line of rotary main shaft, and two cone-shaped rolls rotate along rotary main shaft, the upper surface middle part of patrix is located at by cone-shaped roll, the lower surface of described patrix and the upper surface of counterdie correspond to the shape of required processing work, the axis of upper die and lower die is positioned on the extended line of rotary main shaft, described patrix lead is located at the edge of patrix, and patrix is fixed in the frame of edge runner by patrix lead, described counterdie is fixed on self-powered platform, and with self-powered platform one lifting and can send to, the top of described knock-pin is corresponding with the workpiece position on counterdie, and bottom connection ejects hydraulic cylinder.
As a kind of preferred embodiment, the contact position, workpiece position on described knock-pin and counterdie has been provided with the ejection ring of cushioning and protection.
A kind of metal axial roller grinds moulding process, comprises following operation:
The first step, Slug preparing: revolving meber circle base, non-rotating with square base or round billet; The first drilling of workpiece of middle with hole, with steel plate cutting or open die forging;
Second step, workpiece heat is to forging temperature;
3rd step, roller is ground into shape: start whirligig, cone-shaped roll is revolved round the sun around rotary main shaft, and cone-shaped roll contacts with patrix upper surface, rotates, carry out roller be ground into shape to blank under the effect of contact friction force around Pivot Point Center line; By self-powered platform by counterdie toward drop-down, blank is put into counterdie, then by self-powered platform by counterdie toward rising and send to, until counterdie contacts with patrix, upper and lower mould is closed, component shaping; Then, decline self-powered platform, ejects with the workpiece that knock-pin drives the ejection ring on it roller to be ground into shape simultaneously;
4th step, is ground into the workpiece after shape through roller, carries out forging heat treatment.
Compared with prior art, beneficial effect of the present invention: the present invention possesses following advantage:
1. bore roller and patrix upper surface linear contact lay to substitute existing extruding Full connected or put and rolles over localized contact and be shaped, the reduction of main shaft rotary power, power consumption minimizing, cost reduction;
2. overcome the weakness of large-tonnage rotary forging press eccentric main axis, main shaft bearing life extends;
3., due to stress balance when Symmetric Cone roll makes roller grind, reduce frame and wave, do not need the frame of high stiffness, thus reduce device fabrication cost, improve equipment use security;
4. break through pendulum and grind technique to restrictions such as workpiece size, weight, be applicable to the larger revolving meber of size range and non-rotating base precision manufactureing;
5. relatively existing pendulum grinds technique, expands the scope of application such as size, weight that metal material hot forming makes;
6. metal axial roller grinds forming technology device therefor only needs to improve on existing large-scale rotary forging press basis, replaces existing yaw with double-cone roller milling train head, effectively promotes the range of work of existing rotary forging press and reduces scrap build cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of the rotational workpieces that the embodiment of the present invention 1 is processed;
Fig. 3 is the structural representation of the non-rotational work that the embodiment of the present invention 2 is processed;
Fig. 4 is the side structure schematic diagram of Fig. 3.
Wherein: 1-cone-shaped roll, 2-patrix lead, 3-patrix, 4-counterdie, 5-knock-pin, 6-ejection ring, 7-workpiece, 8-self-powered platform, 9-ejects hydraulic cylinder, 101-rotary main shaft, 102-axis.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
All features disclosed in this description, or the step in disclosed all methods or process, except the speciality mutually repelled and/or step, all can combine by any way, unless specifically stated otherwise, all or similar object alternative features can be had replaced by other equivalences, namely, unless specifically stated otherwise, an embodiment in a series of equivalence of each feature or similar characteristics.
As Figure 1-4, a kind of metal axial roller grinds forming machine, comprises whirligig, patrix 3, patrix lead 2, counterdie 4, knock-pin 5 and self-powered platform 8.This whirligig comprises cone-shaped roll 1, rotary main shaft 101, the motor of drive shaft and reduction box (not shown), motor and reduction box are fixed on the entablature of edge runner fuselage, motor is connected with reduction box, the driving shaft of reduction box is connected with rotary main shaft, rotary main shaft is supported by bearing, bearing is located on bearing block, and bearing block is fixed on the entablature of fuselage.Motor provides power for rotary main shaft, and the regulation and control in speed are carried out in the rotation that reduction box can be main shaft, to adapt to the needs of different workpieces processing.Described cone-shaped roll 1 can along axis 102 rotation of self, and the speed of its rotation is n rpm revolution.This cone-shaped roll 1 is two, is symmetrical arranged relative to the axial line of rotary main shaft 101, and two cone-shaped rolls 1 rotate along rotary main shaft 101.Adopt the cone-shaped roll of a pair symmetry, cone-shaped roll rotates around the axis while rotating around this symmetry axis of rotary main shaft, realizes the axis spreading accumulated deformation to the part that is formed, and the deformation force needed for this biconial roller grinds is little, and die life is long.The upper surface middle part of patrix 3 is located at by cone-shaped roll 1, and the lower surface of described patrix 3 and the upper surface of counterdie 4 correspond to the shape of required processing work 7, and the axis of patrix 3 and counterdie 4 is positioned on the extended line of rotary main shaft 101; Workpiece 7 is put on counterdie 4.During use, due to cone-shaped roll and roll mandrel under the drive of main shaft around spindle axis line rotate, when roll contact is to patrix, with the frictional force effect of patrix upper surface under rotate around Pivot Point Center line, realize jam shaping; Due to cone-shaped roll and patrix upper surface linear contact lay, reduce main shaft rotary power, power jam is rolled over than pendulum and is reduced, and, patrix can play the effect of evenly sharing frictional force, make to roll stone roller more even, end product quality more, what is more important, patrix plays the effect of evenly sharing frictional force, and therefore, the blank of workpiece can be square, manufacturing the workpiece be shaped also can be non-revolved body, and this directly to contact with blank with roll relative to existing twin-roller rotary-forging machine and makes blank this technique that is shaped have further advantage.Described patrix lead 2 is located at the edge of patrix 3, and patrix 3 is fixed in the frame of edge runner by patrix lead 2, and patrix 3 is fixed by patrix lead 2, prevents patrix from moving rolling in stone roller process, ensures that roller grinds frictional force dispersed by patrix.Described counterdie 4 is fixed on self-powered platform 8, and with self-powered platform 8 one lifting and can send to, and self-powered platform 8 and fuselage are fixed.The top of described knock-pin 5 is corresponding with the workpiece position on counterdie 4, the ejection ring 6 of cushioning effect has been provided with in described knock-pin 5 and the contact position, workpiece position on counterdie 4, ejection ring plays the effect of buffering and dispersion ejecting force, prevent due to knock-pin top and absorption surface area too small and to the damage of workpiece in ejection process.Connect bottom knock-pin and eject hydraulic cylinder 9, eject hydraulic cylinder for knock-pin and power is provided.
embodiment 1
As shown in Figure 2, a kind of processing method utilizing described metal axial roller to grind forming technology roller stone roller high ferro rolling stock active wheel blank (revolving meber), comprises following operation:
The first step, Slug preparing: round steel is heated to forging temperature, fast forging die is pressed into cake, then forges punching soon, makes roller and grinds blank;
Second step, start the motor of whirligig, cone-shaped roll rolls the upper surface at patrix by Hmp grease, and cone-shaped roll revolves round the sun around rotary main shaft, and cone-shaped roll contacts with patrix upper surface, rotates under the effect of contact friction force around Pivot Point Center line; By the drop-down counterdie of self-powered platform, blank is put into counterdie, then by self-powered platform by counterdie toward rising, the first fast lifting of lifting platform is also sent to, until contact with patrix with often the revolve round the sun speed of 0.1-3mm of roll; After upper and lower mould is closed, blank roller is ground into shape; Then decline self-powered platform, ejects simultaneously, complete the direct roller of blank and grind molding procedure with the workpiece that knock-pin drives the ejection ring on it roller to be ground into shape;
3rd step, the blank being ground into shape through roller is heat-treated, and treats that next process is processed.
embodiment 2
As shown in Figure 3, Figure 4, the technique utilizing described metal axial roller to be ground into shape prepares a processing method for bridge spherical bearing (non-rotational work), and its procedure of processing is identical with embodiment 1, just, namely this non-rotating can adopt square base, also can adopt round billet.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a metal axial roller grinds forming machine, comprise whirligig, this whirligig comprises cone-shaped roll (1) and rotary main shaft (101), described cone-shaped roll (1) can along the axis of self (102) rotation, this cone-shaped roll (1) is two, be symmetrical arranged relative to the axial line of rotary main shaft (101), and two cone-shaped rolls (1) rotate along rotary main shaft (101), it is characterized in that: also comprise patrix (3), patrix lead (2), counterdie (4), knock-pin (5) and self-powered platform (8), the upper surface middle part of patrix (3) is located at by cone-shaped roll (1), the lower surface of described patrix (3) and the upper surface of counterdie (4) correspond to the shape of required processing work, the axis of patrix (3) and counterdie (4) is positioned on the extended line of rotary main shaft (101), described patrix lead (2) is located at the edge of patrix (3), and patrix (3) is fixed in frame by patrix lead (2), described counterdie (4) is fixed on self-powered platform (8), and with self-powered platform (8) lifting and can send to, the top of described knock-pin (5) is corresponding with the workpiece position on counterdie (4), and bottom connection ejects hydraulic cylinder (9).
2. metal axial roller as claimed in claim 1 grinds forming machine, it is characterized in that: the contact position, workpiece position on described knock-pin (5) with counterdie (4) has been provided with the ejection ring (6) of cushioning and protection.
3. the metal axial roller utilizing metal axial roller as described in claims 1 or 2 to grind forming machine grinds a moulding process, it is characterized in that: comprise following operation:
The first step, Slug preparing: revolving meber circle base, non-rotating with square base or round billet; The first drilling of workpiece of middle with hole, with steel plate cutting or open die forging;
Second step, workpiece heat is to forging temperature;
3rd step, roller is ground into shape: start whirligig, cone-shaped roll is revolved round the sun around rotary main shaft, and cone-shaped roll contacts with patrix (3) upper surface, rotates, carry out roller be ground into shape to blank under the effect of contact friction force around Pivot Point Center line; By self-powered platform (8) by past for counterdie (4) drop-down, blank is put into counterdie (4), then risen by self-powered platform (8) past for counterdie (4) and send to, until counterdie (4) contacts with patrix (3), upper and lower mould is closed, component shaping; Then, decline self-powered platform (8), the workpiece simultaneously using knock-pin (5) to drive the ejection ring on it (6) roller to be ground into shape ejects;
4th step, is ground into the workpiece after shape through roller, carries out forging heat treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310619568.7A CN103611860B (en) | 2013-11-29 | 2013-11-29 | Metal axial roller-grinding forming machine and roller-grinding forming technique thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310619568.7A CN103611860B (en) | 2013-11-29 | 2013-11-29 | Metal axial roller-grinding forming machine and roller-grinding forming technique thereof |
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| CN103611860A CN103611860A (en) | 2014-03-05 |
| CN103611860B true CN103611860B (en) | 2015-04-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108491588B (en) * | 2018-03-02 | 2021-10-22 | 武汉理工大学 | Cold space envelope forming method for thrust roller bearing ring |
| CN110918849B (en) * | 2019-11-26 | 2020-12-22 | 武汉理工大学 | Method for improving forming limit of thin-wall high-rib component space envelope forming high rib |
| CN112453301A (en) * | 2020-11-02 | 2021-03-09 | 武汉理工大学 | Hot rotary forging forming method for titanium alloy high-rib connecting piece |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2412679Y (en) * | 2000-03-09 | 2001-01-03 | 武汉汽车工业大学 | Conical roller roll |
| CN201361681Y (en) * | 2009-03-16 | 2009-12-16 | 江阴南工锻造有限公司 | Mould for forging small and medium-sized gear double-sided pressure wheel spokes |
| CN101708526A (en) * | 2009-12-15 | 2010-05-19 | 武汉理工大学 | Method and die for forming driven helical gear profile of automobile rear axle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0292430A (en) * | 1988-09-28 | 1990-04-03 | Hitachi Ltd | Caulking method |
| JP2001047181A (en) * | 1999-08-03 | 2001-02-20 | Kojima Press Co Ltd | Device for forming metal product having dissimilar shape on surface |
| JP5401701B2 (en) * | 2009-06-29 | 2014-01-29 | 東海ゴム工業株式会社 | Method for manufacturing cylindrical metal fittings and method for manufacturing anti-vibration rubber bushes using the cylindrical metal fittings |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2412679Y (en) * | 2000-03-09 | 2001-01-03 | 武汉汽车工业大学 | Conical roller roll |
| CN201361681Y (en) * | 2009-03-16 | 2009-12-16 | 江阴南工锻造有限公司 | Mould for forging small and medium-sized gear double-sided pressure wheel spokes |
| CN101708526A (en) * | 2009-12-15 | 2010-05-19 | 武汉理工大学 | Method and die for forming driven helical gear profile of automobile rear axle |
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Effective date of registration: 20240111 Address after: 611400 No. 799, hope road, Wujin street, Xinjin District, Chengdu, Sichuan (Industrial Park) Patentee after: Chengdu Xinzhu Transportation Technology Co.,Ltd. Address before: No. 799 Hope Avenue, Xinjin Industrial Park, Chengdu City, Sichuan Province, 6114300 Patentee before: CHENGDU XINZHU ROAD & BRIDGE MACHINERY Co.,Ltd. |