EP1419030B1 - Verfahren und vorrichtung zum spitzenlosen rundschleifen - Google Patents

Verfahren und vorrichtung zum spitzenlosen rundschleifen Download PDF

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Publication number
EP1419030B1
EP1419030B1 EP02767332A EP02767332A EP1419030B1 EP 1419030 B1 EP1419030 B1 EP 1419030B1 EP 02767332 A EP02767332 A EP 02767332A EP 02767332 A EP02767332 A EP 02767332A EP 1419030 B1 EP1419030 B1 EP 1419030B1
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EP
European Patent Office
Prior art keywords
workpiece
grinding
support
support guide
grinding process
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.)
Expired - Lifetime
Application number
EP02767332A
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German (de)
English (en)
French (fr)
Other versions
EP1419030A1 (de
Inventor
Erwin Junker
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.)
Erwin Junker Maschinenfabrik GmbH
Original Assignee
Erwin Junker Maschinenfabrik 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 Erwin Junker Maschinenfabrik GmbH filed Critical Erwin Junker Maschinenfabrik GmbH
Publication of EP1419030A1 publication Critical patent/EP1419030A1/de
Application granted granted Critical
Publication of EP1419030B1 publication Critical patent/EP1419030B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24B5/307—Means for supporting work
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent

Definitions

  • the invention relates to a method for centerless cylindrical grinding, according to the preamble of claim 1 and a device according to the preamble of Claim 5.
  • a procedure of this kind which is often referred to as "centerless procedure” in company practice. is designated, is known for example from DE 32 02 341 A1.
  • the regulating wheel also To cause the feed of the workpiece, it has a slight from the horizontal tilted location.
  • the workpiece is in a not exactly defined Way between the regulating wheel and the support ruler; it will be in this position pressed in through the grinding wheel. It is advantageous, if that too Support ruler is slightly tilted out of the horizontal.
  • the relevant settings When preparing the machine for the grinding process are the center distance between the grinding wheel and the regulating wheel as well as the height adjustment of the support ruler. The best for any workpiece diameter appropriate center distance of grinding wheel and regulating wheel, and this must again the most suitable height adjustment of the support ruler found out become. The tuning of these settings requires a lot of experience.
  • each center distance between the grinding wheel and the Regulating disc assign a certain height adjustment of the support ruler.
  • the regulating wheel is in the usual way in a headstock slide stored, which can be made in the direction of the grinding wheel.
  • a mechanical one Forced coupling of the headstock carriage with the support ruler causes that when adjusting the grinding wheel and regulating wheel to a certain Center distance corresponding to a specific diameter of the workpiece at the same time a very definite value for the height adjustment of the Support ruler comes about.
  • the said adjustment can be made according to the proposal DE 32 02 341 A1 are even made during the grinding process, when the pressure force of the grinding wheel has to be corrected. In the result is at each further approach of the regulating wheel to the grinding wheel at the same time raised the support ruler by a certain amount.
  • the invention is therefore based on the object, a method for centerless To provide cylindrical grinding of the type mentioned, in which even with stronger Material removal during the entire grinding process one for an optimal Grinding result required position of the workpiece between the grinding wheel, the regulating wheel and the support ruler is guaranteed.
  • Influence size used to determine the position of the support ruler during the grinding process adapt the changing contour of the workpiece.
  • the correct processing position of the workpiece during the grinding process then leads to the largest possible Accuracy of the grinding result.
  • An advantageous embodiment of the method according to the invention can therein exist that during the grinding process, the contour of the workpiece metrologically detected and adjusted the support ruler in accordance with the measurement result becomes.
  • the diameter of the Workpiece be measured continuously or at intervals. It is also possible, during the grinding process continuously deviations of the workpiece contour to measure from the circular shape and when exceeding a certain Value of the deviation, the height adjustment and / or the inclination of the support ruler to correct this deviation.
  • Possibility can with the ongoing measurement of the workpiece diameter be combined. Be used to adjust the support ruler just mentioned Factors used, this leads to a high accuracy and dimensional accuracy the finished workpieces. However, this working method is very expensive.
  • the invention also relates to a device for centerless cylindrical grinding, according to claim 5.
  • the device can advantageously be designed in such a way be that two actuators are provided which engage the support ruler, connected to the control device and by these independently are actuated, such that during the grinding process in addition also the inclination of the support bar relative to the horizontal is specifically adjustable.
  • each adjusting spindle is controllable for itself.
  • the Device according to the invention can be configured particularly advantageously by that it has a support with a tip, in the longitudinal direction of the support ruler arranged in front of this and on the center of rotation of the to be ground Workpiece is aligned.
  • a device configured during the grinding process ensures a precise axial fixation of the workpiece, so that despite different outside diameter and also in the presence radial face or ring surfaces that are to be ground, an accurate result comes about.
  • the support ruler In many cases, it will be sufficient for the support ruler to be a single continuous one Body is.
  • Carrier body provided on which attack the actuators and on the two or more support bodies are arranged articulated transversely to the longitudinal direction the support body extending pivot axes in the manner of rockers with are connected to the carrier body and have different support heights.
  • the Support ruler is so multi-part.
  • each support body on both sides of its pivot axis via compression springs is supported on the support body, can easily a self-adjusting Zero position of the carrier body can be achieved.
  • This embodiment can be further optimized by that between a support body and the support body located pivot axis the side of the support body and / or the support body in a vertically is mounted to the carrier body extending biased bearing.
  • the multipart Support ruler becomes so adaptable that even workpieces with graded, different diameters can be ground. Thereby It becomes possible, entire parts families without retooling the support ruler on to grind the same grinder.
  • control device of the invention is according to a further proposal characterized particularly advantageous that the support ruler a measuring device is assigned by which during the grinding process the diameter and / or deviations of the workpiece contour from the circular shape be measured, and that the measuring device with an evaluation is connected, in turn, for forwarding control signals of the control device connected is.
  • the device according to the invention can also consist in that the Control device is connected to a program unit, the control unit in accordance with a time-dependent operating program for grinding a supplies required control signals for each type of workpiece and for each individual Repeated workpiece of this type.
  • Fig. 1 is the process of centreless cylindrical grinding, centerless loops called, shown schematically.
  • a grinding wheel 1 and a regulating wheel 2 arranged substantially parallel to the axis side by side.
  • the Workpiece 3 is located on a support ruler 4, which with a wear-resistant Covering 5 is provided.
  • the support ruler 4 is opposite to the machine stand 10 in the height adjustable, as indicated by the double arrow 6.
  • 7, 8 and 9 are the central axes and thus also rotational axes of the workpiece 3, the Grinding wheel 1 and the regulating wheel 2 indicated.
  • the regulating wheel 2 rotationally driven, that is, it rotates about its central axis 9.
  • the grinding wheel 1 also offset in rotation about its central axis 8.
  • the directions of rotation of Grinding wheel 1 and the regulating wheel 2 are by the curved directional arrows 11 and 12 illustrates.
  • the grinding wheel 1 in a main spindle and the regulating wheel 2 is received in a regulating wheel spindle headstock.
  • one or both headstocks can be displaced in the x direction on a common Machine stand 10 to be mounted.
  • the x-direction is - as you know - The transverse to the longitudinal axis of the workpiece direction. Execution such headstocks and the drive of the discs are customary and therefore not shown further.
  • the position of the workpiece 3 on the support ruler 4 is not as clearly defined as that they could suggest schematic representation of FIG. 1.
  • the regulating wheel 2 with slightly from the horizontal tilted axis may be arranged. This also raises the workpiece slightly sloping down, which again by an inclination of the support ruler can be compensated.
  • the workpiece must have a very specific location between the grinding wheel 1, the regulating wheel 2 and the support bar 4 occupy.
  • a situation set at the beginning of the grinding process is so exact quickly changed again when the diameter and contour of the workpiece as Change sequence of the grinding process. This is especially the case with today's conventional CBN grinding wheels the case with which a strong removal is achieved in a short time.
  • the remedy is that during the grinding process, the support ruler on raised and also its inclination is corrected until the optimal conditions are restored and the workpiece is ground round.
  • FIG. 2 therefore explains with reference to a sectional view of FIG. 1, as the Adjusting the support ruler during the grinding process is going on.
  • the support ruler 4 with the workpiece 3 rests on two actuators 15 and 16, the in turn are supported on the machine stand 10.
  • the actuators are in Longitudinal direction of the support bar 4 spaced from each other.
  • the actuators by adjusting spindles with CNC-controlled Axes formed, each control spindle is controllable for itself.
  • a Parallel displacement of the support ruler upwards can be generated by the fact that the two adjusting spindles are controlled synchronously. If in addition a tilt of the support ruler 4 by the angle ⁇ relative to the horizontal required is, the actuator 16 must be adjusted more than the actuator 15. Die Adjustment directions of the actuators are shown in Fig. 2 by the double arrows 13 and 14 marked.
  • Fig. 3 includes a representation corresponding to the section A-A of Fig. 1.
  • the workpiece is here a valve body 17, in the known manner consists of a shaft 18 with the valve plate 19.
  • the valve body 17 rests although here on a support ruler 4.
  • On the machine frame 10 is here but In addition, a support 21 secured by screws 22, and on the support 21st a tip 20 is formed.
  • the valve body 17 is supported with its front, located on the valve plate 19 end face. It can thus not occur here that the valve body 17 under the influence of the axial Grinding forces resulting from the grinding of the bevel on the valve seat, in axial direction emigrates from the grinding zone.
  • the central axis of the tip 20 is located at substantially the same elevation like the center axis of the grinding wheel.
  • the axis of rotation of the valve body 17 corresponds approximately to the central axis 23 of the tip 20, as long as the support body horizontally.
  • Fig. 5 illustrates a support ruler 24 in a multi-part design. It exists first from a carrier body 25, which in the manner of the support ruler shown in Fig. 2 supported by two actuators 15 and 16 on the machine frame 10 is. By different adjustment of the actuators 15 and 16 can also be achieve an inclination of the carrier body 25 here. Different, however, is that on the carrier body 25 two support body 26, 27 articulated are. These are transverse to the longitudinal axis of the support body extending pivot axes 28, 29 provided.
  • the support body 26, 27 are characterized in the manner of Rockers connected to the carrier body 25; their pivoting mobility is illustrated by the round arrows 35 and 36.
  • the support bodies can be different Pad heights have.
  • the support body 26, 27 to a certain extent Adjust the dimension of workpieces where deviations of the workpiece diameter of the nominal size.
  • the Oscillating motion compensated by the process forces acting on the support body, which superimpose the spring forces.
  • Another advantage of the multi-part support ruler according to FIG. 5 is that that on this ruler by the pendulum movement of the support body 26, 27 Workpieces with different diameters can be ground. Thereby It is possible, entire parts families without retooling the support ruler on the same Machine to grind. Even stronger diameter differences can be be compensated by that between a support body 26, 27 and the support body 25 located pivot axis 28, 29 by adjusting by the two actuators 15,16 is brought into different height position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP02767332A 2001-08-14 2002-08-06 Verfahren und vorrichtung zum spitzenlosen rundschleifen Expired - Lifetime EP1419030B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10139894A DE10139894B4 (de) 2001-08-14 2001-08-14 Verfahren und Vorrichtung zum spitzenlosen Rundschleifen
DE10139894 2001-08-14
PCT/EP2002/008779 WO2003015983A1 (de) 2001-08-14 2002-08-06 Verfahren und vorrichtung zum spitzenlosen rundschleifen

Publications (2)

Publication Number Publication Date
EP1419030A1 EP1419030A1 (de) 2004-05-19
EP1419030B1 true EP1419030B1 (de) 2005-03-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02767332A Expired - Lifetime EP1419030B1 (de) 2001-08-14 2002-08-06 Verfahren und vorrichtung zum spitzenlosen rundschleifen

Country Status (11)

Country Link
US (1) US7258594B2 (es)
EP (1) EP1419030B1 (es)
JP (1) JP3995653B2 (es)
KR (1) KR100955131B1 (es)
CN (1) CN100506479C (es)
AT (1) ATE289894T1 (es)
CZ (1) CZ296364B6 (es)
DE (2) DE10139894B4 (es)
ES (1) ES2236578T3 (es)
RU (1) RU2298467C2 (es)
WO (1) WO2003015983A1 (es)

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US7677954B2 (en) * 2007-05-21 2010-03-16 Hall David R O.D. centerless grinding machine
JP5057947B2 (ja) * 2007-12-03 2012-10-24 ミクロン精密株式会社 センタレス研削方法
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CN101596691B (zh) * 2009-04-23 2012-12-05 贵州航天精工制造有限公司 一种沉头零件的无心磨削方法及装置
DE102009023234A1 (de) * 2009-05-29 2010-12-02 Rheinisch-Westfälische Technische Hochschule Aachen Auflageschiene einer Spitzenlos-Schleifmaschine und Verfahren zur Durchführung eines Schleifvorgangs
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CN101972971A (zh) * 2010-11-12 2011-02-16 吴江市菀坪镙丝厂 螺杆抛光装置
CN102825510A (zh) * 2012-09-17 2012-12-19 贵州航锐航空精密零部件制造有限公司 横截面为圆形的长轴的加工方法
JP6005529B2 (ja) * 2013-01-11 2016-10-12 光洋機械工業株式会社 テーパ面エッジ部のセンタレス研削方法およびセンタレス研削装置
CN103100957A (zh) * 2013-01-24 2013-05-15 汪正友 抛光机导板数字化调节模式
CN103481162B (zh) * 2013-09-29 2016-08-10 吴鸣寰 一种制笔用台阶磨
JP6287044B2 (ja) * 2013-10-17 2018-03-07 株式会社ジェイテクト ころ素材の研削方法及び研削装置
CN103506896B (zh) * 2013-10-30 2017-01-04 周大鹏 一种磨削装置
DE102015206565B4 (de) * 2015-04-13 2024-02-08 Erwin Junker Grinding Technology A.S. VERFAHREN UND SYSTEM ZUM AUßENSCHLEIFEN VON WELLENTEILEN ZWISCHEN SPITZEN
CN104842229B (zh) * 2015-06-10 2017-03-01 重庆跃进机械厂有限公司 长杆零件无心磨加工方法
JP2017039177A (ja) * 2015-08-18 2017-02-23 コマツＮｔｃ株式会社 研削盤および研削方法
CN105277235B (zh) * 2015-09-29 2017-08-01 嘉兴学院 圆柱滚子超精磨削精度和表面质量在线监测装置及在线监测方法
KR200482158Y1 (ko) 2016-03-18 2016-12-22 이병순 센터리스연삭기의 무단 심고 조정장치
CN106493614A (zh) * 2016-11-14 2017-03-15 海瑞恩精密技术（太仓）有限公司 一种磨削机及其使用方法
CN107639509A (zh) * 2017-10-26 2018-01-30 中建材衢州金格兰石英有限公司 长杆石英玻璃棒的磨削装置及其磨削方法
CN109571164B (zh) * 2018-12-25 2021-05-18 福州大学 一种棒状物料无心外圆打磨装置
CN110039413A (zh) * 2019-04-04 2019-07-23 东莞金坤新材料股份有限公司 用于方块磁性体磨削滚圆的装置
DE102020113216A1 (de) * 2020-05-15 2021-11-18 Schaeffler Technologies AG & Co. KG Vorrichtung und Verfahren zum Schleifen und Honen sowie Verwendung der Vorrichtung
IT202000022861A1 (it) 2020-09-28 2022-03-28 Consiglio Nazionale Ricerche Metodo per la minimizzazione delle ondulazioni su un pezzo da lavorare mediante un processo di rettifica
IT202000028397A1 (it) 2020-11-25 2022-05-25 Consiglio Nazionale Ricerche Macchina rettificatrice e metodo per operare tale macchina rettificatrice
CN112720098B (zh) * 2021-01-04 2023-08-15 南京驭逡通信科技有限公司 一种木棍均匀打磨装置
CN112589553B (zh) * 2021-01-07 2022-01-04 杭州冀新机械制造有限公司 一种自动校正砂轮磨损的无心磨床
RU208324U1 (ru) * 2021-06-21 2021-12-14 Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) Опорный нож
CN113601286A (zh) * 2021-08-07 2021-11-05 湖南大学 一种振动辅助无心磨削装置
CN115302349B (zh) * 2022-09-02 2024-03-12 浙江诚昌机械配件有限公司 一种毛刺去除机及其使用方法
CN115431114B (zh) * 2022-10-08 2023-06-20 河南国疆新材料科技有限公司 一种超高直线度同心度的陶瓷管棒的制作装置及方法

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Also Published As

Publication number Publication date
RU2298467C2 (ru) 2007-05-10
KR100955131B1 (ko) 2010-04-28
CZ296364B6 (cs) 2006-02-15
RU2004107511A (ru) 2005-06-10
KR20040030822A (ko) 2004-04-09
CN100506479C (zh) 2009-07-01
DE50202390D1 (de) 2005-04-07
CZ2004226A3 (cs) 2004-07-14
DE10139894A1 (de) 2003-03-13
US20040209558A1 (en) 2004-10-21
EP1419030A1 (de) 2004-05-19
DE10139894B4 (de) 2009-09-10
JP3995653B2 (ja) 2007-10-24
CN1525899A (zh) 2004-09-01
JP2004538164A (ja) 2004-12-24
WO2003015983A1 (de) 2003-02-27
ATE289894T1 (de) 2005-03-15
US7258594B2 (en) 2007-08-21
ES2236578T3 (es) 2005-07-16

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