EP4149717A1 - Vorrichtung und verfahren zum schleifen und honen sowie verwendung der vorrichtung - Google Patents
Vorrichtung und verfahren zum schleifen und honen sowie verwendung der vorrichtungInfo
- Publication number
- EP4149717A1 EP4149717A1 EP21722762.8A EP21722762A EP4149717A1 EP 4149717 A1 EP4149717 A1 EP 4149717A1 EP 21722762 A EP21722762 A EP 21722762A EP 4149717 A1 EP4149717 A1 EP 4149717A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- grinding
- honing
- ruler
- honing stone
- 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.)
- Granted
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000004575 stone Substances 0.000 claims abstract description 58
- 230000001105 regulatory effect Effects 0.000 claims abstract description 21
- 238000003754 machining Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 abstract 2
- 230000037431 insertion Effects 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Classifications
-
- 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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/22—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding cylindrical surfaces, e.g. on bolts
-
- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
-
- 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
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/04—Honing machines or devices; Accessories therefor designed for working external surfaces of revolution
Definitions
- the invention relates to a method for grinding and then honing a workpiece.
- the invention also relates to a device for carrying out a combined grinding and honing process.
- DE 41 24 454 A1 discloses a device for grinding and honing in one setting.
- a grinding unit and a short-stroke honing unit are either arranged in parallel next to one another or on a rotary indexing table.
- a roller tensioning device with tensioning rollers and a support sliding shoe should be suitable for tensioning the workpiece.
- a roller bearing outer ring is machined as a workpiece.
- a receptacle for grinding is designed as a slide shoe receptacle and offset from a receptacle for Honbearbei device. Between the two machining steps of grinding and honing, the workpiece is moved axially from the grinding clamping into the honing clamping by means of a spindle that drives the workpiece during grinding.
- DE 860468 B discloses a device for centerless grinding of cylindrical surfaces, it being assumed that an arrangement has proven itself for external grinding in which the workpiece is guided by a driving regulating wheel and a support ruler during grinding.
- the support ruler can be replaced by a support roller.
- DE 860 468 B suggests guiding and rotating the workpiece between three guide bodies arranged in a circle around the workpiece, the guide bodies being kept in changeable but essentially the same distance from the center of the guide system.
- One of the guide bodies can be designed as a drive roller
- a method for centerless inclined plunge-cut grinding is described, for example, in DE 19940 685 A1. With this method, a workpiece is machined which has two cylindrical sections which are connected to one another by a conical section.
- the invention is based on the object of further developing the grinding and honing machining of workpieces compared to the prior art mentioned, with a particularly efficient and reliable machining being sought under conditions of series production.
- this object is achieved by a device for grinding and honing with the features of claim 1.
- the object is also achieved by a method for grinding and honing according to claim 8.
- the embodiments and advantages of the invention explained below in connection with the grinding and honing method also apply mutatis mutandis to the grinding and honing device and vice versa.
- the grinding and honing device comprises a grinding wheel, a regulating wheel that drives a workpiece, a grooving ruler provided for guiding the rotating workpiece, and a honing stone holder, which is adjustably held on the grooving ruler and is used to hold a honing stone with which the workpiece is is workable.
- a honing stone holder which is adjustably held on the grooving ruler and is used to hold a honing stone with which the workpiece is is workable.
- the axis of rotation of the grinding wheel is arranged above the axis of rotation of the regulating wheel, so that overall one speaks of a vertical device.
- the device for centerless grinding and combined honing can be built in a horizontal manner.
- honing stone holder and “honing stone” are to be interpreted broadly. Accordingly, “honing stone holder” is to be understood as any device which presses an element used for honing, for example a honing belt, against the workpiece surface.
- the grinding and honing process comprises the following steps:
- a grinding and honing device which comprises a grinding wheel, a regulating wheel, a grooving ruler designed to guide a workpiece rotating around its own axis, and a device integrated into the grooving ruler for pressing a honing stone,
- the workpiece is thus driven by one and the same element, namely the regulating wheel, during grinding and honing.
- a separate honing machine is not required.
- the honing stone can be applied to the rotating workpiece when the machining by the grinding wheel has not yet been fully completed, in particular during sparking. It is also possible to have the honing stone already then to be pressed against the workpiece when finishing with the grinding wheel has not yet been completed.
- the positioning of the honing stone holder remains unchanged during the honing process.
- Process variants can also be implemented in which the honing stone oscillates in the longitudinal direction of the rotating workpiece during honing. Such an oscillation can be achieved, for example, by pneumatic, hydraulic or mechanical devices.
- the honing stone holder can be pivotably attached to the grooving ruler.
- it is also referred to as a honing stone arm.
- spring loading the honing stone arm it can be ensured that the honing stone is spaced from the workpiece surface during the grinding process.
- the later pressing of the honing stone against the workpiece surface against the spring force can take place, for example, with the aid of a pneumatic or electromechanical actuator.
- a pocket for receiving the workpiece can be formed through the grooving ruler, the honing stone holder being intended to hold a honing stone through an opening in one wall of the pocket to press against the workpiece.
- the grinding and honing device is particularly suitable for machining rolling elements. These are, for example, cylindrical rollers, tapered rollers or ton rollers. Multi-part processing is optional. In such a case, a groove ruler can be designed to guide several workpieces at the same time. In the case of multi-part machining, the honing can be done either with a single honing stone for all workpieces being processed at the same time, or with one honing stone per workpiece. In both cases, a number of workpieces are honed simultaneously, these workpieces being subjected to a grinding process beforehand, also at the same time. In all cases, very fine workpiece surfaces can be produced, as they can otherwise only be produced with the help of a separate honing machine.
- FIG. 4 shows the ruler with a workpiece contacting a grinding wheel in a perspective view.
- a grinding and honing device identified as a whole by the reference number 1, comprises a grinding unit 2, which in the exemplary embodiment is constructed as a vertical machine.
- a ruler 3 is the grinding and honing device 1 to be counted and be 5 arranged in the grinding operation between a grinding wheel 4 and a Regelschei.
- a workpiece 8 which can be a rolling element, is guided, the workpiece 8 being driven by the regulating disk 5, that is to say is set in rotation.
- the workpiece 8 is shown arbitrarily with a stepped diameter.
- the reference numeral 7 denotes a vertically aligned mounting plate, in front of which the grinding wheel 4, like the regulating wheel 5, is arranged.
- the axes of rotation of the regulating wheel 5 and of the grinding wheel 4 are aligned horizontally, the axis of rotation of the grinding wheel 4 being located above the axis of rotation of the regulating wheel 5.
- the groove ruler 3 is used not only when grinding the workpiece 8, but also during a subsequent honing process.
- the Einstichli neal 3 has a honing stone holder 9, which is also referred to as a honing stone arm.
- a honing stone mounted on the honing stone holder 9 is denoted by 10.
- An elongated, flat base element 11 of the ruler 3 is also referred to as a ruler in the narrower sense.
- the base element 11 is connected to one of its long sides with a projection element 12, which is also referred to as a ruler.
- the attachment element 12 comprises a bridge element 13 which has two bridge feet 14, 15 which are firmly connected to the base element 11.
- a central strut 16 Arranged in the center between the bridge feet 14, 15 is a central strut 16 which protrudes at right angles from the base element 11 and is also firmly connected to it. In a section of the central strut 16 projecting beyond the bridging element 13 there is a central bolt 17 on which the honing stone arm 9 is pivotably mounted.
- the corresponding pivot axis is designated by SWA and represents a surface normal of that surface in which the strip-shaped base element 11 lies.
- a spring 18, which is a helical spring in the exemplary embodiment, is stretched between the bridge element 13 and the honing stone arm 9 in such a way that a torque acting on the honing stone arm 9 is generated, which acts in the direction of lifting the honing stone 10 from the workpiece 8 . It is assumed here that the workpiece 8 is located in a recess 23 which is formed within the recess ruler 3 between the strip-shaped base element 11 and the attachment element 12.
- the grinding process is carried out while the honing stone 10 is lifted from the workpiece 8.
- the plunge straightedge 3 is displaced in such a way that the workpiece 8 loses contact with the grinding wheel 4, but is still driven by the regulating wheel 5.
- a pneumatic actuator 19 which is assigned to the grooving ruler 3, is actuated, so that a piston rod 21, which is approximately orthogonal to the honing stone arm 9 and to the base element 11, moves against a stop section 22 of the honing stone arm 9 and thus slightly moves it pivoted about the swivel axis SWA.
- a compressed air cylinder 20 of the actuator 19 is firmly connected to the base element 11 of the ruler 3. Compressed air connections are not shown in FIGS. 3 and 4.
- the honing stone 10 is mounted on a bolt 25 in the honing stone arm 9 and penetrates a slot 24, i.e. an opening, in the bridge element 13. As can be seen from FIG. which is provided for receiving the workpiece 8.
- a tilt axis KA parallel to the swivel axis SWA is formed by the bolt 25, which enables an at least slight tilting of the honing stone 10 relative to the honing stone arm 9, so that the honing stone 10 is pressed uniformly against the entire outer surface of the workpiece 8 when the actuator 19 is actuated .
- the duration of the honing process can be set through the machine control of the grinding and honing device 1. Reference list
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020113216.6A DE102020113216A1 (de) | 2020-05-15 | 2020-05-15 | Vorrichtung und Verfahren zum Schleifen und Honen sowie Verwendung der Vorrichtung |
PCT/DE2021/100354 WO2021228311A1 (de) | 2020-05-15 | 2021-04-16 | Vorrichtung und verfahren zum schleifen und honen sowie verwendung der vorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4149717A1 true EP4149717A1 (de) | 2023-03-22 |
EP4149717B1 EP4149717B1 (de) | 2024-03-06 |
Family
ID=75769532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21722762.8A Active EP4149717B1 (de) | 2020-05-15 | 2021-04-16 | Vorrichtung und verfahren zum schleifen und honen sowie verwendung der vorrichtung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP4149717B1 (de) |
JP (1) | JP7432003B2 (de) |
CN (1) | CN115397611A (de) |
DE (1) | DE102020113216A1 (de) |
WO (1) | WO2021228311A1 (de) |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE860468C (de) | 1949-04-19 | 1953-02-05 | Karl Berstecher | Einrichtung zur spitzenlosen, spanabhebenden Herstellung zylindrischer Flaechen |
DE3447361C2 (de) * | 1984-12-24 | 1993-09-30 | Hunger Walter | Honwerkzeug |
DE4005911C1 (de) | 1990-02-24 | 1991-04-25 | Gmn Georg Mueller Nuernberg Ag, 8500 Nuernberg, De | |
DE4124454A1 (de) | 1991-07-24 | 1993-01-28 | Berliner Werkzeugmasch | Einrichtung zum schleifen und honen in einer aufspannung |
DE19537855C2 (de) | 1994-10-19 | 1998-01-29 | Schaeffler Waelzlager Kg | Verfahren zum Winkelpositionieren einer Steuerbuchse eines Drehschieberventils für Hydrolenkungen |
DE19756619B4 (de) | 1997-04-01 | 2007-03-15 | Robert Bosch Gmbh | System zum Betreiben einer Brennkraftmaschine insbesondere für ein Kraftfahrzeug |
JP3803506B2 (ja) * | 1999-05-13 | 2006-08-02 | 富士ホーニング工業株式会社 | ホーニング加工方法 |
DE19940685A1 (de) | 1999-08-27 | 2001-03-01 | Mikrosa Werkzeugmaschinen Gmbh | Verfahren zum spitzenlosen Schräg-Einstechschleifen und Schleifmaschine |
DE10139894B4 (de) | 2001-08-14 | 2009-09-10 | Erwin Junker Maschinenfabrik Gmbh | Verfahren und Vorrichtung zum spitzenlosen Rundschleifen |
CN100368150C (zh) | 2005-03-07 | 2008-02-13 | 贵州西南工具(集团)有限公司 | 圆环类零件外圆的加工方法及装置 |
JP2007283472A (ja) * | 2006-04-20 | 2007-11-01 | Mazda Motor Corp | ホーニング加工方法及びその装置 |
JP6488894B2 (ja) | 2015-06-05 | 2019-03-27 | 株式会社ジェイテクト | 円筒ワークの研削加工装置 |
CN108515396A (zh) * | 2018-04-11 | 2018-09-11 | 重庆市耀植机械有限责任公司 | 零件加工用磨床 |
CN208629168U (zh) * | 2018-07-30 | 2019-03-22 | 福州华顺机械设备有限公司 | 一种方便清理的磨床机 |
CN108907907B (zh) * | 2018-08-17 | 2019-09-24 | 重庆市璧山区隆翔机械有限公司 | 内孔珩磨工艺 |
-
2020
- 2020-05-15 DE DE102020113216.6A patent/DE102020113216A1/de active Pending
-
2021
- 2021-04-16 JP JP2022557149A patent/JP7432003B2/ja active Active
- 2021-04-16 CN CN202180028621.9A patent/CN115397611A/zh active Pending
- 2021-04-16 EP EP21722762.8A patent/EP4149717B1/de active Active
- 2021-04-16 WO PCT/DE2021/100354 patent/WO2021228311A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP4149717B1 (de) | 2024-03-06 |
WO2021228311A1 (de) | 2021-11-18 |
JP7432003B2 (ja) | 2024-02-15 |
CN115397611A (zh) | 2022-11-25 |
DE102020113216A1 (de) | 2021-11-18 |
JP2023518321A (ja) | 2023-04-28 |
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