US20050066699A1 - Roll-hardening device in a roll-hardening machine for crankshafts - Google Patents
Roll-hardening device in a roll-hardening machine for crankshafts Download PDFInfo
- Publication number
- US20050066699A1 US20050066699A1 US10/501,793 US50179304A US2005066699A1 US 20050066699 A1 US20050066699 A1 US 20050066699A1 US 50179304 A US50179304 A US 50179304A US 2005066699 A1 US2005066699 A1 US 2005066699A1
- Authority
- US
- United States
- Prior art keywords
- deep
- backing
- roller head
- rolling
- bearing journal
- 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.)
- Abandoned
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Classifications
-
- 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
- B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
- B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
- B21H7/182—Rolling annular grooves
- B21H7/185—Filet rolling, e.g. of crankshafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
- B24B39/04—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/17—Crankshaft making apparatus
Definitions
- the invention relates to a deep-rolling device of a deep-rolling machine for crankshafts which is designed in scissor construction and in which two swivellable scissor arms lying opposite each other each carry a deep-rolling roller head or a backing roller head respectively, the backing roller head being fitted with two parallel-axisly arranged backing rollers of which the rotational axes lie in a common plane, with a drive device which generates the closing and opening movement of the deep-rolling device and the deep-rolling force.
- a deep-rolling device is allocated to each main bearing journal and big end bearing journal of a crankshaft.
- the backing roller head has at least one axial guide which rollers in swivel direction is arranged in front of the backing to close the scissor arm carrying the backing rollers, the longitudinal axis of which guide is perpendicular to the rotational axis of the crankshaft and lies in a direction which encloses an acute angle with the plane of the rotational axes of the backing rollers, and the axial width of which guide is greater than the width of the backing roller head and slightly less than the distance of the oil collars of a main bearing journal or big end bearing journal.
- the axial guide has a distance from the common plane.
- the outer contour of the axial guide can have other forms than well as the classically prismatic or cylindrical form and e.g. be crowned or composed from several geometric shapes.
- FIG. 1 shows a section through a deep-rolling machine with a part view of a crankshaft transport device, where a deep-rolling device assumes its opening position opposite an introduced crankshaft,
- FIG. 2 shows the cross section through the deep-rolling machine and a section through a main bearing journal of the crankshaft where the deep-rolling machine is in its closed position
- FIG. 3 shows a section A of FIG. 2 in enlarged scale
- FIG. 4 shows a section along line IV-IV in FIG. 3 .
- FIG. 6 shows a first embodiment of an axial guide in longitudinal section
- the drive device generates the rotational movement of the crankshaft 3 about its axis 4 during the deep-rolling of the main bearing journal 5 and big end bearing journal 6 .
- the axis 4 thus lies in the axis of rotation 7 of the drive device.
- the present embodiment example is restricted to the deep-rolling of a main bearing journal 5 of the crankshaft 3 as this suffices to explain the subject of the invention.
- the drive device 12 for the deep-rolling device 8 has an adjustment cylinder 15 and a force device 16 .
- the deep-rolling device 8 is hinged about a hinge point 17 on an angle lever 19 swivellable about an axis 18 .
- the axial guide 27 in relation to the common plane 34 of the two rotational axes 32 and 33 of the backing rollers 21 and 22 lies at an acute angle 37 which is greater than 0°.
- This structure means that on swivelling of the backing roller head 14 into the closed position in the direction of the swivel movement 35 , the axial guide 27 precedes the two backing rollers 21 and 22 .
- the axial guide 27 precedes the backing rollers 21 and 22 on entering the space defined by the distance 29 a of the two oil collars 25 and 26 on the main bearing journal 5 . This prevents one of the backing rollers 21 or 22 hitting against one of the oil collars 25 or 26 when the deep-rolling device 8 is closed.
- the axial guide 27 guides the deep-rolling roller head 13 in the axial direction of the crankshaft 3 .
Abstract
The deep-rolling device (8) of a deep-rolling machine (1) for crankshafts (3) is made in scissor construction. Two swivellable scissor arms (9, 10) opposite each other each carry a deep-rolling roller head (13) or a backing roller head (14) respectively. The backing roller head (14) is fitted with two parallel-axis backing rollers, the rotational axes of which lie in a common plane. The backing roller head (14) also has an axial guide which is arranged in front of the backing rollers in swivel direction (35) for closing, the longitudinal axis of which guide stands perpendicular to the rotational axis of the crankshaft (3) and lies in a plane which forms an acute angle with the common plane of the rotational axes of the backing rollers, and the axial width of which is greater than the width of the backing roller head (14) and slightly smaller than the distance of adjacent oil collars of a main bearing journal or big end bearing journal.
Description
- The invention relates to a deep-rolling device of a deep-rolling machine for crankshafts which is designed in scissor construction and in which two swivellable scissor arms lying opposite each other each carry a deep-rolling roller head or a backing roller head respectively, the backing roller head being fitted with two parallel-axisly arranged backing rollers of which the rotational axes lie in a common plane, with a drive device which generates the closing and opening movement of the deep-rolling device and the deep-rolling force.
- Deep-rolling devices of the said type are known from German patent specification DE 197 22 308 C1, the object of which is a deep-rolling machine for crankshafts.
- In such a deep-rolling machine, a deep-rolling device is allocated to each main bearing journal and big end bearing journal of a crankshaft.
- The design of the known deep-rolling machine is such that when closing each deep-rolling device, first the backing rollers of the backing roller head and then the deep-rolling rollers of the deep-rolling roller head are pressed on one of the main bearing or big end bearing journals of a crankshaft.
- The backing roller head and the deep-rolling roller head perform a feed motion and each a swivel motion.
- The swivel motion of the backing roller head and deep-rolling roller head in the closing direction carries a risk that a collision can occur between the backing roller head or deep-rolling roller head and the crankshaft in the area of an oil collar as the clearances between the backing roller head and the deep-rolling roller head on the one hand and the two oil collars of a main bearing and big end bearing journal on the other hand are very narrow.
- The underlying object of the invention is to structure a deep-rolling device of the type cited initially so that the swivel motion of the backing roller head and deep-rolling roller head in the closing direction cannot trigger a collision with the crankshaft in the area of an oil collar.
- According to the invention this object is achieved in that the backing roller head has at least one axial guide which rollers in swivel direction is arranged in front of the backing to close the scissor arm carrying the backing rollers, the longitudinal axis of which guide is perpendicular to the rotational axis of the crankshaft and lies in a direction which encloses an acute angle with the plane of the rotational axes of the backing rollers, and the axial width of which guide is greater than the width of the backing roller head and slightly less than the distance of the oil collars of a main bearing journal or big end bearing journal.
- As a result of the invention, on closing the deep-rolling device, before the backing rollers impact against an oil collar, the deep-rolling device is aligned in the axial direction of the crankshaft.
- Such an alignment of the deep-rolling device ensures that the swivel movement of the deep-rolling roller head in the closing direction cannot lead to a collision of the deep-rolling roller head with the crankshaft in the area of an oil collar.
- In the case where the acute angle between the longitudinal axis of the axial guide and the common plane formed by the rotational axes of the two backing rollers amounts to 0°, the axial guide has a distance from the common plane. The outer contour of the axial guide can have other forms than well as the classically prismatic or cylindrical form and e.g. be crowned or composed from several geometric shapes.
- To machine particularly wide shaft bearing journals, instead of a single guide several axial guides can be provided which are arranged next to each other and fill the gap between two adjacent oil collars. Usually two axial guides are provided, the outer width of which is such that the two axial guides fit in the space between the oil collars with a slight lateral play. Such an arrangement also has the advantage that the axial guides are relatively small. At the same time this reduces the lateral friction between the axial guides and the oil collars.
- The invention is now described in more detail below with reference to diagrammatic drawings showing embodiment examples.
-
FIG. 1 shows a section through a deep-rolling machine with a part view of a crankshaft transport device, where a deep-rolling device assumes its opening position opposite an introduced crankshaft, -
FIG. 2 shows the cross section through the deep-rolling machine and a section through a main bearing journal of the crankshaft where the deep-rolling machine is in its closed position, -
FIG. 3 shows a section A ofFIG. 2 in enlarged scale, -
FIG. 4 shows a section along line IV-IV inFIG. 3 , -
FIG. 5 shows a section analog toFIG. 3 with a special arrangement of the axial guide, -
FIG. 6 shows a first embodiment of an axial guide in longitudinal section, -
FIG. 7 shows a top view onto the embodiment according toFIG. 6 , -
FIG. 8 shows a second embodiment of the axial guide in longitudinal section. - A deep-rolling
machine 1 is fitted with a drive device (not shown) which serves to hold acrankshaft 3 introduced in the deep-rollingmachine 1 with acrankshaft transport device 2. - The drive device generates the rotational movement of the
crankshaft 3 about itsaxis 4 during the deep-rolling of the main bearingjournal 5 and big end bearingjournal 6. Theaxis 4 thus lies in the axis ofrotation 7 of the drive device. - The present embodiment example is restricted to the deep-rolling of a main bearing
journal 5 of thecrankshaft 3 as this suffices to explain the subject of the invention. - Allocated to the main bearing
journal 5 is a deep-rollingdevice 8 in scissor construction which is fitted with twoscissor arms scissor rotation point 11, adrive device 12, a deep-rolling roller head 13 and abacking roller head 14. Due to the scissor construction the deep-rolling roller head 13 and thebacking roller head 14 cannot be moved individually in the direction along therotational axis 4. Rather they are arranged and adjustable only in particular planes of the deep-rollingmachine 1 corresponding to the respective position of the main bearingjournal 5 or big end bearingjournal 6 to be machined along therotational axis 4 of thecrankshaft 3. Such a plane is shown for example inFIG. 3 andFIG. 4 . - The
drive device 12 for the deep-rollingdevice 8 has anadjustment cylinder 15 and aforce device 16. - The
adjustment cylinder 15 generates the closing and opening movement of thescissors device 8; theforce device 16 generates the deep-rolling force. Due to the division of the movements generated bycylinders device 8 is achieved. - The deep-rolling
device 8 is hinged about ahinge point 17 on anangle lever 19 swivellable about anaxis 18. - The
angle lever 19 can be swivelled using apiston cylinder unit 20. By actuating thepiston cylinder unit 20, the deep-rollingdevice 8 is brought into and out of the working position i.e. moved in the direction of and opposite to the direction of theaxis 4 of thecrankshaft 3. - The deep-rolling
machine 1 is designed so that on closing the deep-rollingdevice 8 first the two parallel-axisly arrangedbacking rollers backing roller head 14 and then the two deep-rolling rollers rolling roller head 13 come to rest on the main bearingjournal 5. - Here in the view in
FIG. 1 thebacking roller head 14 executes aswivel movement 35 counterclockwise and the deep-rolling roller head 13 aswivel movement 36 clockwise about thescissor rotation point 11. The twoswivel movements point 17 in the direction ofaxis 4 and at their end the closed position is achieved as shown inFIG. 2 . The closed position corresponds to the working position of the deep-rollingdevice 8. - In the
swivel movements backing roller head 14 and deep-rolling roller head 13 in the closing direction, a collision with one of the twooil collars journal 5 is avoided by anaxial guide 27. Theaxial guide 27 is arranged at an acute angle 37 between 0 and 45° to theplane 34 which contains the tworotational axes backing rollers longitudinal axis 41 of theaxial guide 27 stands vertical to therotational axis 4 of the crankshaft 3 (FIG. 5 ). - The
direction 38 of thelongitudinal axis 41 of theaxial guide 27—geometrically viewed—encloses therotational axis 4 of thecrankshaft 3 i.e. thelongitudinal axis 41 can swing about therotational axis 4. Comparison ofFIGS. 3 and 5 clearly shows this possibility. For example in the view inFIG. 3 thedirection 38 falls in the section plane IV-IV, i.e. the acute angle 37 is 0° and theaxial guide 27 has a lateral distance s from theplane 34 containing the tworotational axes plane 34 and thedirection 38 run parallel with each other. - In
FIG. 5 in contrast theaxial guide 27 in relation to thecommon plane 34 of the tworotational axes backing rollers backing roller head 14 into the closed position in the direction of theswivel movement 35, theaxial guide 27 precedes the twobacking rollers axial guide 27 precedes thebacking rollers distance 29 a of the twooil collars journal 5. This prevents one of thebacking rollers oil collars device 8 is closed. - The
axial guide 27 can take different forms. InFIG. 3 for example it has a cylindrical form. InFIG. 5 theaxial guide 27 has a multiple contour composed of aprismatic body 39 withchamfered edges 40. Theaxial guide 27 is attached to thebacking roller head 14 by asocket screw 42. In the case of bearingjournals 5 which have a particularlylarge width 29 a, instead of a singleaxial guide 27 two axial guides (not shown) can be arranged next to each other where the one lies at theoil collar 25 and the other at theoil collar 26. - Instead of the
prismatic body 39 theaxial guide 27 can be fitted with lateral slidingbodies 43 which are screwed viacountersunk bolts 44 to the body of theaxial guide 27. Thesliding bodies 43 can for example comprise non-ferrous metal, Teflon, hardened or coated steel, which have particularly good sliding properties. - Because of the scissor construction of the deep-rolling
device 8, theaxial guide 27 at the same time guides the deep-rolling roller head 13 in the axial direction of thecrankshaft 3. - The
width 28 of theaxial guide 27 is greater than thewidth 29 of thebacking roller head 14 and slightly smaller than thedistance 29 a of theoil collars journal 5. - In the closed position of the deep-rolling device 8 (
FIG. 2 ), for the twospaces oil collars axial guide 27. - Reference List
-
- 1 Deep-rolling machine
- 2 Crankshaft transport device
- 3 Crankshaft
- 4 (Rotational) axis of the crankshaft
- 5 Main bearing journal
- 6 Big end bearing journal
- 7 Rotational axis of drive device
- 8 Deep-rolling machine
- 9 Scissor arm
- 10 Scissor arm
- 11 Scissor rotational point
- 12 Drive device
- 13 Deep-rolling roller head
- 14 Backing roller head
- 15 Adjustment cylinder
- 16 Force device
- 17 Hinge point
- 18 Axis
- 19 Angle lever
- 20 Piston cylinder unit
- 21 Backing roller
- 22 Backing roller
- 23 Deep-rolling roller
- 24 Deep-rolling roller
- 25 Oil collar
- 26 Oil collar
- 27 Axial guide
- 28 Axial guide diameter
- 29 Width of backing roller head
- 29 a Distance of oil collars
- 30 Space
- 31 Space
- 32 Backing roller axis
- 33 Backing roller axis
- 34 Plane through
axes - 35 Counterclockwise swivel movement
- 36 Clockwise swivel movement
- 37 Acute angle
- 38 Direction
- 39 Prismatic body
- 40 Chamfered edge
- 41 Longitudinal axis
- 42 Socket screw
- 43 Lateral sliding body
- 44 Countersunk bolt
- s Lateral spacing
Claims (4)
1. Deep-rolling device of a deep-rolling machine for crankshafts designed in scissor construction with two swivellable scissor arms lying opposite each other, each carrying a deep-rolling roller head or a backing roller head respectively, where the backing roller head is fitted with two parallel-axisly arranged backing rollers of which the rotational axes lie in a common plane, with a drive device which generates the closing and opening movement of the deep-rolling machine and the deep-rolling force, wherein the backing roller head has at least one axial guide
which in swivel direction is arranged in front of the backing rollers to close the scissor arm carrying the backing rollers,
the longitudinal axis of which is perpendicular to the rotational axis of the crankshaft and lies in a direction which encloses an acute angle with the plane of the rotational axes of the backing rollers, and
the axial width of which is greater than the width of the backing roller head and slightly less than the distance of the oil collars of a main bearing journal or big end bearing journal.
2. Deep-rolling device according to claim 1 , wherein the acute angle is 0° and the longitudinal axis of the axial guide has a distance from the plane.
3. Deep-rolling device according to claim 1 , wherein the axial guide has a contour which is prismatic, cylindrical, crowned or composed of different geometric sections.
4. Deep-rolling device according to claim 1 wherein several axial guides are allocated to each of two backing rollers, the axial width of which guides is less than the width of the backing roller head and the outer width of which is slightly less than the distance of the oil collars of a main bearing journal or big end bearing journal.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202-00926.2 | 2002-01-23 | ||
DE20200926U DE20200926U1 (en) | 2002-01-23 | 2002-01-23 | Deep rolling device of a deep rolling machine for crankshafts |
PCT/EP2002/013969 WO2003061906A1 (en) | 2002-01-23 | 2002-12-10 | Roll-hardening device in a roll-hardening machine for crankshafts |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050066699A1 true US20050066699A1 (en) | 2005-03-31 |
Family
ID=7966844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/501,793 Abandoned US20050066699A1 (en) | 2002-01-23 | 2002-12-10 | Roll-hardening device in a roll-hardening machine for crankshafts |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050066699A1 (en) |
EP (1) | EP1469972B1 (en) |
CN (1) | CN1615205A (en) |
DE (2) | DE20200926U1 (en) |
WO (1) | WO2003061906A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060000254A1 (en) * | 2004-06-01 | 2006-01-05 | Ingersoll Cm Systems Llc | Apparatus and method of rolling split pin crankshafts |
US20080066513A1 (en) * | 2006-09-15 | 2008-03-20 | Naumann Hans J | Deep rolling machine for crankshafts |
US20120096696A1 (en) * | 2005-04-01 | 2012-04-26 | Hegenscheidt-Mfd Gmbh & Co. Kg | Roller Burnishing Machine For Crankshafts |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10361738B3 (en) * | 2003-12-29 | 2005-09-01 | Hegenscheidt-Mfd Gmbh & Co. Kg | Deep rolling machine of a deep rolling machine for crankshafts |
EP1727648B1 (en) | 2004-02-27 | 2012-12-05 | Kecskeméti Föiskola Gamf Kar | Apparatus and method for deburring and roller-burnishing machine parts |
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2002
- 2002-01-23 DE DE20200926U patent/DE20200926U1/en not_active Expired - Lifetime
- 2002-12-10 WO PCT/EP2002/013969 patent/WO2003061906A1/en not_active Application Discontinuation
- 2002-12-10 US US10/501,793 patent/US20050066699A1/en not_active Abandoned
- 2002-12-10 DE DE50203387T patent/DE50203387D1/en not_active Expired - Fee Related
- 2002-12-10 EP EP02791800A patent/EP1469972B1/en not_active Expired - Fee Related
- 2002-12-10 CN CNA028275004A patent/CN1615205A/en active Pending
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US20060000254A1 (en) * | 2004-06-01 | 2006-01-05 | Ingersoll Cm Systems Llc | Apparatus and method of rolling split pin crankshafts |
US7188500B2 (en) * | 2004-06-01 | 2007-03-13 | Ingersoll Cm Systems Llc | Apparatus and method of rolling split pin crankshafts |
US20120096696A1 (en) * | 2005-04-01 | 2012-04-26 | Hegenscheidt-Mfd Gmbh & Co. Kg | Roller Burnishing Machine For Crankshafts |
US8245374B2 (en) * | 2005-04-01 | 2012-08-21 | Hegenscheidt-Mfd Gmbh & Co. Kg | Roller burnishing machine for crankshafts |
US20080066513A1 (en) * | 2006-09-15 | 2008-03-20 | Naumann Hans J | Deep rolling machine for crankshafts |
US8677581B2 (en) * | 2006-09-15 | 2014-03-25 | Hegenscheidt-Mfd Gmbh & Co. Kg | Deep rolling machine for crankshafts |
Also Published As
Publication number | Publication date |
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DE20200926U1 (en) | 2002-04-18 |
EP1469972A1 (en) | 2004-10-27 |
DE50203387D1 (en) | 2005-07-14 |
CN1615205A (en) | 2005-05-11 |
WO2003061906A1 (en) | 2003-07-31 |
EP1469972B1 (en) | 2005-06-08 |
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