EP3678799B1 - Radial-axial-ringwalzwerk zum walzen eines ringes - Google Patents

Radial-axial-ringwalzwerk zum walzen eines ringes Download PDF

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Publication number
EP3678799B1
EP3678799B1 EP18762764.1A EP18762764A EP3678799B1 EP 3678799 B1 EP3678799 B1 EP 3678799B1 EP 18762764 A EP18762764 A EP 18762764A EP 3678799 B1 EP3678799 B1 EP 3678799B1
Authority
EP
European Patent Office
Prior art keywords
mandrel
radial
rolling
rolling mill
ring
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP18762764.1A
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German (de)
English (en)
French (fr)
Other versions
EP3678799A1 (de
Inventor
Georg Obermaier
Jochen SCHWEIKERT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
L Schuler GmbH
Original Assignee
L Schuler GmbH
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 L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP3678799A1 publication Critical patent/EP3678799A1/de
Application granted granted Critical
Publication of EP3678799B1 publication Critical patent/EP3678799B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
    • B21H1/12—Making articles shaped as bodies of revolution rings of restricted axial length rings for ball or roller bearings

Definitions

  • the invention relates to a radial-axial ring rolling mill for rolling a ring, with an axial rolling device and a radial rolling device, the radial rolling device having a main roller and a roller mandrel, between which the ring is deformable, the roller mandrel in its upper one Area is held on a mandrel bearing head, which is mounted so horizontally adjustable in a 1st linear adjustment device that the roller mandrel can be moved perpendicular to its longitudinal extension in the direction of the main roller and opposite to it.
  • a radial-axial ring rolling mill of the type mentioned is in the DE 10 2016 101 939 A1 and is used for rolling seamless rings from a metal blank or a ring preform.
  • the ring preform is formed from the original diameter to the desired final diameter by means of various rollers.
  • the axial rolling device serves to reshape the ring in the direction of its axis of rotation or an axis parallel to it, ie to reshape the side flanks of the ring.
  • the radial rolling device is used for reshaping the ring in a direction perpendicular thereto, ie in the direction of the radius of the ring to be formed.
  • the terms "axial” and "radial” are used accordingly in the context of this description.
  • the ring preform is placed on an essentially horizontal table and a rolling mandrel is introduced into the interior of the ring, for example from above.
  • the rolling mandrel is mounted vertically displaceably on a mandrel bearing head arranged above the table and can be lowered until the lower end of the rolling mandrel engages in a lower mandrel bearing arranged below the table.
  • the rolling mandrel In order to be able to remove the rolled ring at the end of the rolling process, the rolling mandrel must be pulled out of the rolled ring, which is done by pulling it vertically upwards relative to the mandrel bearing head by means of a mandrel lifting device.
  • the problem here is that the mandrel lifting device in its upper position protrudes relatively far upwards over the mandrel bearing head, whereby there is a risk that the mandrel lifting device, for example, by a crane with which a ring preform is inserted into the ring rolling mill or the finished ring from the Ring rolling mill is removed, damaged or bent.
  • the deformation of the ring preform in the radial direction takes place between a main roller and the rolling mandrel. To do this, it is necessary to adjust the distance between these two components. In the known radial-axial ring rolling mill, this takes place in that the mandrel bearing head carrying the mandrel lifting device can be adjusted relative to the machine frame in a horizontal linear adjustment device is led. By adjusting the mandrel bearing head by means of the horizontal linear adjustment device, the roller mandrel can be moved in the radial direction towards the main roller and in the opposite direction.
  • a radial-axial ring rolling mill is used not only for a special size of a ring to be rolled, but for different ring sizes.
  • rings are rolled that can differ significantly in terms of their axial height.
  • the rolling mandrel is subject to relatively high bending stress if the distance between the lower mandrel bearing and the upper mandrel bearing is too large.
  • the invention is based on the object of creating a radial-axial ring rolling mill for rolling a ring, in which an adaptation of the geometric relationships to the size of the ring to be rolled is possible in a structurally simple manner.
  • this object is achieved by a radial-axial ring rolling mill with the features of claim 1. It is provided that the 1st linear adjustment device is vertically adjustable together with the mandrel bearing head and the rolling mandrel as a unit by means of a second linear adjustment device so that the rolling mandrel can be pulled out of the interior of the ring and inserted into it.
  • the basic idea is that the mandrel lifting device embodied on the mandrel bearing head in the prior art can be dispensed with and that the rolling mandrel can be fixedly attached to the mandrel bearing head.
  • the rolling mandrel For vertical adjustment of the rolling mandrel it is no longer adjusted relative to the mandrel bearing head, but the rolling mandrel is adjusted vertically together with the mandrel bearing head and together with the horizontal 1st linear adjustment device of the mandrel bearing head as a unit. In this way, it is reliably avoided that an offset can develop between the mandrel bearing head and the upper mandrel bearing.
  • the 1st linear adjustment device for the horizontal adjustment of the mandrel bearing head and thus for the radial adjustment of the rolling mandrel runs horizontally or at least with a large horizontal component.
  • the mandrel bearing head is preferably firmly attached to at least one and in particular to two parallel horizontal beams.
  • the carriers can slidably pass through a guide carriage of the 1st linear adjustment device and be guided horizontally on this, preferably
  • a drive device for the adjustment movement for example a hydraulic cylinder, is arranged on the side of the guide carriage facing away from the mandrel bearing head.
  • the rolling mandrel is preferably held firmly and immovably in the mandrel bearing head. If the rolling mandrel has to be replaced, for example due to wear, the connection between the mandrel bearing head and the rolling mandrel must be released. It can be provided that the rolling mandrel is held in the mandrel bearing head by clamping and in particular by hydraulic clamping.
  • the vertical adjustment of the unit which comprises the 1st linear adjusting device and the mandrel bearing head and the rolling mandrel, is preferably carried out in that the guide carriage of the 1st linear adjusting device can be adjusted along a vertically extending path of the 2nd linear adjusting device.
  • the track can for example be formed by a vertical guide column which can be attached to the machine frame.
  • the adjustment movement is preferably carried out by means of at least one hydraulic piston-cylinder unit.
  • the guide carriage of the 1st linear adjusting device can preferably be continuously fixed or fixed on the path of the 2nd linear adjusting device.
  • the fixation takes place by means of clamping, which can be done hydraulically and / or pneumatically.
  • the upper end of the rolling mandrel is fastened in the mandrel bearing head by means of a mandrel bearing element.
  • the mandrel bearing element can be removed from the top of the mandrel bearing head.
  • a new rolling mandrel can then be reintroduced into the mandrel bearing head from above together with a new mandrel bearing element and then fixed to the mandrel bearing head.
  • the rolling mandrel can be driven in rotation about its longitudinal axis by means of a motor which is attached, for example, to the mandrel bearing head and in particular to the mandrel bearing element. By rotating the rolling mandrel, its cooling can be improved. While the radial-axial ring rolling mill is in operation, i.e. while a ring is being rolled, this motor can be switched off or switched to passive mode.
  • the guide carriage can be moved vertically upwards to such an extent that the rolling mandrel is completely moved out of the ring. In this way, the replacement of the ring or the insertion of a new ring preform is facilitated.
  • the guide carriage can be moved downward so that the effective rolling mandrel length, ie the distance between the lower mandrel bearing and the upper mandrel bearing head, is at the height of the roller to be rolled Rings adapted and can be shortened especially for rolling low rings.
  • the rolling mandrel is held at its upper end on the mandrel bearing element, which can be releasably fixed in the mandrel bearing head.
  • the removable mandrel bearing element can preferably be fixed in the mandrel bearing head by means of clamping.
  • the motor by means of which the rolling mandrel is driven in rotation, preferably drives the rolling mandrel independently of the rolling torque of the ring to be rolled.
  • the motor is designed in such a way that it can also drive the roller mandrel in the non-productive times of the operation of the radial-axial ring rolling mill, for example when changing a workpiece, in order to be able to cool the roller mandrel better during these times, for example.
  • the motor is preferably switched to passive mode during the normal rolling process.
  • the mandrel bearing element attached to the upper end of the rolling mandrel is preferably held in the mandrel bearing head in such a way that tilting and / or rolling moments can be introduced into the mandrel bearing head.
  • the vertical 2nd linear adjustment device is activated from an upper position, whereby the guide carriage together with the mandrel bearing head and the rolling mandrel is moved downwards and lowered along the path of the column until the The rolling mandrel reaches through the ring preform with its lower end and engages in the lower mandrel bearing.
  • the 1st linear adjustment device 17 is activated, whereby the mandrel bearing head with the roller mandrel is displaced relative to the guide carriage in the direction of the main roller until the ring preform R is held with a tight fit between these two components.
  • the forming process is then carried out in the usual way.
  • the Figures 1 and 2 show a radial-axial ring rolling mill 10 in a perspective side view.
  • the radial-axial ring rolling mill 10 has a base frame 23 on which an axial rolling device 11 is mounted, preferably displaceably.
  • the axial rolling device 11 has a stand 24 on which two tapered rollers 25 are mounted in the usual way.
  • a radial rolling device 12 is arranged on the base frame 23, which has a frame 26 that is firmly seated on the base frame 23.
  • the radial rolling device 12 has in the usual way a main roller 14 which is mounted rotatably about a vertical axis of rotation D 1.
  • a horizontal table 13 is provided on which an annular blank or a ring preform R can be placed, as shown in the figures.
  • a vertical column 21 is arranged, which forms a vertical linear path 22 for a second linear adjustment device 18 with which a guide carriage 20 can be adjusted vertically along the path 22 of the column 21, as it is is indicated by the double arrow S 2 .
  • the guide carriage 20 can either be fixed in fixed positions or continuously in any desired position along the path 22 on the column 21 by clamping.
  • the guide carriage 20 is part of a 1st linear adjustment device 17 and has two parallel guide bores 27 which run horizontally and are each penetrated by a rod-shaped carrier 19, the .Träger 19 being slidably mounted in the guide bores 27.
  • a common mandrel bearing head 16 is mounted on the carriers 19, which connects the carriers 19 to one another.
  • the two carriers 19 are connected via a yoke 28, with a hydraulic adjusting device 29 being arranged between the yoke 28 and the guide carriage, with which the carrier 19 and thus also the mandrel bearing head 16 horizontally in the direction the axial rolling device 11 and is adjustable in the opposite direction, as indicated by the double arrow S 1.
  • a rolling mandrel 15 which projects freely downwards in the vertical direction and which extends in the axial direction, i.e. parallel to the vertical axis of rotation of the ring preform R, is attached to the mandrel bearing head 16.
  • the carrier 19 When the guide carriage 20 is adjusted vertically along the path 22 of the column 21, the carrier 19, the mandrel bearing head 16 and the rolling mandrel 15 are also adjusted vertically at the same time, whereby the rolling mandrel 15 is introduced from above into the interior of the ring preform R and through this can be passed through.
  • the rolling mandrel 15 can also be lifted out of the interior of the ring preform R or the ring formed therefrom by lifting the guide carriage 20.
  • a lower mandrel bearing 30 is provided in the usual way, into which the rolling mandrel 15 can be threaded with its lower end, so that it is then held at both the lower and the upper end.
  • the axial rolling device is withdrawn from the ring and the 1st linear adjustment device 17 is moved so that the mandrel bearing head 16 moves away from the guide carriage 20 and thus the distance between the main roller 14 and the rolling mandrel 15 is enlarged.
  • the guide carriage 20 is raised along the path 22 of the column 21 by activating the second linear adjustment device 18, whereby the rolling mandrel 15 is lifted out of the ring so that it is now exposed and can be removed from the table 13 by means of suitable lifting devices.
  • the upper end of the rolling mandrel 15 is fastened in the mandrel bearing head 16 by means of a mandrel bearing element 31.
  • the mandrel bearing element 31 can be removed from the mandrel bearing head 16 upwards.
  • a new rolling mandrel 15, together with a new mandrel bearing element 31, can then be reintroduced into the mandrel bearing head 16 from above and then fixed on the mandrel bearing head 16.
  • mandrel bearing element 31 it is also possible to separate the mandrel bearing element 31 from the old roller mandrel 15 and attach it to a new roller mandrel 15 and then insert the mandrel bearing element 31 together with the new roller mandrel 15 into the mandrel bearing head 16 or to change the roller mandrel 15 in the machine without this To remove mandrel bearing element 31.
  • the rolling mandrel 15 can be driven in rotation by means of a motor 32 in order to cool the rolling mandrel 15, in particular during idle times of the radial-axial ring rolling mill.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP18762764.1A 2017-09-08 2018-08-22 Radial-axial-ringwalzwerk zum walzen eines ringes Active EP3678799B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017008449.1A DE102017008449A1 (de) 2017-09-08 2017-09-08 Radial-Axial-Ringwalzwerk zum Walzen eines Ringes
PCT/EP2018/000409 WO2019048076A1 (de) 2017-09-08 2018-08-22 Radial-axial-ringwalzwerk zum walzen eines ringes

Publications (2)

Publication Number Publication Date
EP3678799A1 EP3678799A1 (de) 2020-07-15
EP3678799B1 true EP3678799B1 (de) 2021-09-29

Family

ID=63452596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18762764.1A Active EP3678799B1 (de) 2017-09-08 2018-08-22 Radial-axial-ringwalzwerk zum walzen eines ringes

Country Status (8)

Country Link
US (1) US11077482B2 (pt)
EP (1) EP3678799B1 (pt)
JP (1) JP7194726B2 (pt)
CN (1) CN111093856A (pt)
BR (1) BR112020001899B1 (pt)
DE (1) DE102017008449A1 (pt)
RU (1) RU2761021C2 (pt)
WO (1) WO2019048076A1 (pt)

Families Citing this family (7)

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CN110000315B (zh) * 2019-05-20 2020-11-24 浙江联大锻压有限公司 一种卧式碾环机的辊轮的适配机构
CN110434260B (zh) * 2019-07-10 2020-10-20 苏州市东盛锻造有限公司 一种碾环机系统及阀盖碾环成型方法
CN111872314B (zh) * 2020-07-31 2022-03-15 烟台吉森新材料科技有限公司 一种龙门式重型扩锻机组
CN111940650A (zh) * 2020-08-10 2020-11-17 马鞍山市兴隆铸造有限公司 一种可进行斜面调隙的大型辗环机轴向轧制设备
CN114273570B (zh) * 2022-01-04 2022-09-09 中南大学 一种用于大型环件轧制的辅助支撑装置
IT202200022383A1 (it) * 2022-10-31 2024-05-01 Hts S R L Laminatoio dotato di attuatori elettromagnetici
CN116078960B (zh) * 2023-04-07 2023-06-02 山西天宝集团有限公司 一种适用于t型和l型法兰生产加工用碾环装置

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Also Published As

Publication number Publication date
BR112020001899B1 (pt) 2023-11-21
BR112020001899A2 (pt) 2020-07-28
RU2020108467A (ru) 2021-10-08
RU2020108467A3 (pt) 2021-10-08
CN111093856A (zh) 2020-05-01
EP3678799A1 (de) 2020-07-15
JP2020533174A (ja) 2020-11-19
WO2019048076A1 (de) 2019-03-14
JP7194726B2 (ja) 2022-12-22
RU2761021C2 (ru) 2021-12-02
DE102017008449A1 (de) 2019-03-14
US20200261962A1 (en) 2020-08-20
US11077482B2 (en) 2021-08-03

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