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US20180318980A1 - Grinding machine for grinding of workpieces with an internal profile - Google Patents

Grinding machine for grinding of workpieces with an internal profile Download PDF

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Publication number
US20180318980A1
US20180318980A1 US15/967,911 US201815967911A US2018318980A1 US 20180318980 A1 US20180318980 A1 US 20180318980A1 US 201815967911 A US201815967911 A US 201815967911A US 2018318980 A1 US2018318980 A1 US 2018318980A1
Authority
US
United States
Prior art keywords
grinding
reception
arm
grinding machine
grinding arm
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
Application number
US15/967,911
Other languages
English (en)
Inventor
Stefan Kramer
Stefan Schneider
Heike HEMPEL
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.)
Niles Werkzeugmaschinen GmbH
Kapp Werkzeugmaschinen GmbH
Original Assignee
Niles Werkzeugmaschinen GmbH
Kapp Werkzeugmaschinen 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 Niles Werkzeugmaschinen GmbH, Kapp Werkzeugmaschinen GmbH filed Critical Niles Werkzeugmaschinen GmbH
Assigned to KAPP Werkzeugmaschinen GmbH, NILES WERKZEUGMASCHINEN GMBH reassignment KAPP Werkzeugmaschinen GmbH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Hempel, Heike, SCHNEIDER, STEFAN, KRAMER, STEFAN
Publication of US20180318980A1 publication Critical patent/US20180318980A1/en
Abandoned 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • 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
    • B24B19/009—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding profiled workpieces using a profiled grinding tool
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power

Definitions

  • the invention relates to a grinding machine for grinding of workpieces with an internal profile, comprising a grinding arm in which at least one grinding wheel is supported for grinding of the profile of the workpiece and a reception which is arranged at the grinding machine for holding the grinding arm.
  • a grinding machine with such a grinding arm is known from EP 0 416 151 B1.
  • the tubular arm is here driven at one of its axial ends by means of a driving shaft, wherein a pinion is driven around which a toothed belt runs.
  • a further shaft is arranged which also carries a pinion around which the toothed belt runs.
  • the grinding spindle is then driven via this shaft.
  • the grinding arm is fixed at a reception of the grinding machine at its end remote from the grinding wheel.
  • GB 575 276 A discloses a grinding arm which is fixed at a grinding machine by means of a bifurcated end section. After the grinding arm is mechanically fixed a driving belt is placed and tensioned to be able to drive the grinding wheel of the grinding arm.
  • DE 10 2014 220 161 A1 describes a machining device by which especially radial inner grooves in a vane support can be machined. A grinding wheel which is driven by a grinding spindle is thereby driven via a belt drive.
  • the leaflet “Spanntechnik-Spannendepolar, Stiefelmayer Spannfutter und-dorne” from Stiefelmayer Spanntechnik GmbH & Co. KG discloses clamping mandrels.
  • the solution of this object by the invention is characterized in that the grinding arm comprises at least two clamping pins being spaced apart from another and that the reception comprises two corresponding recesses for the reception of the clamping pins, wherein in the reception locking means are arranged by which the clamping pins can be locked in the recesses so that the grinding arm is detachably fixed in a defined position relatively to the reception, wherein the grinding arm comprises a driving shaft by which the grinding wheel can be driven, wherein the driving shaft is torque proof connected with a coupling element and wherein in the reception a driving element is arranged which can be brought into torque proof connection with the coupling element.
  • the coupling element is designed as profile element which comprises around the circumference a plurality of radial protruding projections, wherein the driving element comprises a shape which is complementary to this.
  • the coupling element can be designed as part which projects from the base contour of the grinding arm, wherein the driving element in the reception comprises a recess for entry of the coupling element.
  • the rotational movement of the driving shaft is transmitted to a shaft via a belt or a chain which shaft is connected torque proof with the grinding wheel.
  • the coupling means are designed for the transmission of oil, cooling lubricant or oil mist.
  • the grinding arm and in the reception detachable contact means can be arranged for the transmission of electricity or of electrical signals. Thereby, it is possible to establish an electrical connection between the grinding arm and the reception and thus the grinding machine in an easy manner which is for example essential for the survey of the system.
  • a storage element can be arranged on which grinding arm specific data can be stored.
  • This storage element is preferably designed as a RFID transponder.
  • Dressable grinding wheels as well as such with a steel base body, which is coated with abrasive material, can be used.
  • the time for the change of the grinding arm can thereby be less than 30 s.
  • the required clamping pins and locking means which are required for the proposed concept are known as such and are also called zero-point clamping system. By such means a repeat accurate positioning of the grinding arm at its reception is ensured.
  • the transmission of media is enabled by the mentioned fluid coupling elements.
  • the required or desired sensor technology is electrically coupled by the mentioned electro couplings.
  • the rotational drive for the grinding wheel is realized by the mentioned pluggable coupling means.
  • a RFID transponder can be provided to store and to recall grinding arm specific data and so to facilitate the mounting process of the grinding arm.
  • alternative storage means can be provided for the grinding arm specific data like for example a QR code.
  • the grinding arm carries the at least two clamping pins while the reception which is connected with the grinding machine comprises the recesses with the locking means.
  • the clamping pins are arranged at the reception and that the grinding arm carries the recesses with the locking means.
  • this solution is not preferred while not excluded by the present invention.
  • FIG. 1 An embodiment of the invention is shown.
  • the only FIGURE shows at one hand a grinding arm for grinding of a not depicted workpiece with an internal profile and at the other hand a reception of the grinding machine for the grinding arm.
  • a reception 3 can be seen in the upper left region which is part of a grinding machine.
  • a grinding arm 1 is depicted which comprises a grinding wheel 2 by which a not shown workpiece with an internal profile can be ground (for example an internal gearing).
  • Reception 3 and grinding arm 1 are thereby shown in a not yet mounted, i.e. assembled position.
  • the surface 17 of the reception 3 gets in plane contact with the surface 18 of the grinding arm 1 .
  • the grinding arm 1 comprises two clamping pins 4 and 5 which are spaced apart from another; meanwhile the reception 3 comprises two corresponding recesses 6 and 7 for the reception of the clamping pins 4 and 5 . Only schematically depicted are locking means 8 and 9 which are arranged in the reception 3 by which the clamping pins 4 , 5 can be latched in the recesses 6 , 7 . By doing so the grinding arm 1 is detachably fixed relatively to the reception 3 in a defined position.
  • An insofar important element is the coupling of the rotary drive for the grinding wheel 2 .
  • the grinding wheel 2 is supported at a shaft which—what is not depicted in the FIGURE, however reference is made insofar to EP 0 416 151 B1—is driven by a belt which runs in the inner of the grinding arm 1 which belt runs around a belt pulley which is torque proof connected with the driving shaft 10 .
  • a coupling element 11 is torque proof connected with the driving shaft 10 which coupling element comprises a gear-like shape, i.e. several radial protrusions which are distributed around the circumference.
  • a corresponding drive element 12 is provided which is driven around an axis of rotation which is perpendicular on the plane of projection by a not depicted motor.
  • the driving element 12 has a shape corresponding to the shape of the coupling element 11 , i.e. when the grinding arm 1 is placed onto the reception 3 the coupling element 11 , which protrudes from the base contour of the grinding arm 1 , enters into the driving element 12 so that a torque proof connection is established by which the driving shaft 10 and so the grinding wheel 2 can be driven.
  • coupling means 15 , 16 and 19 , 20 are provided at the grinding arm 1 and at the reception 3 respectively by which a fluidic coupling can be established between the reception 3 and the grinding arm 1 .
  • this fluidic coupling for example cooling lubricant can be guided to the grinding wheel and/or oil mist can be guided for the lubrication of the bearing to ensure a respective supply.
  • electrical contact means 13 and 14 are provided which also automatically get in contact at the mounting of the two surfaces 17 and 18 and allow that electrical energy and electrical signals respectively can be transmitted.
  • the electric coupling of a sensor system is relevant by which bursting of the driving belt can be detected.
  • more than one pair can be provided.
  • a RFID transponder 21 and a corresponding RFID antenna 22 are provided to transmit in an easy manner data from the grinding arm 1 to the reception 3 and machine respectively.
  • the transponder and the antenna get in active connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
US15/967,911 2017-05-02 2018-05-01 Grinding machine for grinding of workpieces with an internal profile Abandoned US20180318980A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017004252.7A DE102017004252A1 (de) 2017-05-02 2017-05-02 Schleifmaschine zum Schleifen innenprofilierter Werkstücke
DE102017004252.7 2017-05-02

Publications (1)

Publication Number Publication Date
US20180318980A1 true US20180318980A1 (en) 2018-11-08

Family

ID=62062853

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/967,911 Abandoned US20180318980A1 (en) 2017-05-02 2018-05-01 Grinding machine for grinding of workpieces with an internal profile

Country Status (6)

Country Link
US (1) US20180318980A1 (ja)
EP (1) EP3398715A1 (ja)
JP (1) JP2018187761A (ja)
CN (1) CN108789043A (ja)
BR (1) BR102018008590A2 (ja)
DE (1) DE102017004252A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112157538A (zh) * 2020-08-26 2021-01-01 金肯职业技术学院 一种大径薄壁油封衬环螺旋磨具
US10919124B2 (en) * 2017-05-02 2021-02-16 KAPP Werkzeugmaschinen GmbH Grinding machine
CN112873408A (zh) * 2021-01-12 2021-06-01 奇瑞汽车河南有限公司 一种涂胶嘴开孔用的开孔工装及其使用方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB575276A (en) * 1944-08-02 1946-02-11 George H Alexander Machinery L Means for performing grinding operations on the interiors of hollow work pieces
US4709465A (en) * 1985-10-04 1987-12-01 The Ingersoll Milling Machine Company Interchangeable spindle-head milling system
ES2039782T3 (es) * 1989-09-07 1993-10-01 Kapp Gmbh Cabeza rectificadora para la fabricacion de perfiles interiores.
ES2171121B1 (es) * 2000-07-06 2004-02-16 Soraluce S Coop Sistema de modularidad y accionamiento aplicable al carnero-cabezal de una fresadora.
US7462143B2 (en) * 2006-12-14 2008-12-09 Gleason Cutting Tools Corporation Machine spindle
DE102014220161A1 (de) * 2014-10-06 2016-04-07 Siemens Aktiengesellschaft Bearbeitungseinrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10919124B2 (en) * 2017-05-02 2021-02-16 KAPP Werkzeugmaschinen GmbH Grinding machine
CN112157538A (zh) * 2020-08-26 2021-01-01 金肯职业技术学院 一种大径薄壁油封衬环螺旋磨具
CN112873408A (zh) * 2021-01-12 2021-06-01 奇瑞汽车河南有限公司 一种涂胶嘴开孔用的开孔工装及其使用方法

Also Published As

Publication number Publication date
JP2018187761A (ja) 2018-11-29
EP3398715A1 (de) 2018-11-07
CN108789043A (zh) 2018-11-13
DE102017004252A1 (de) 2018-11-08
BR102018008590A2 (pt) 2018-12-26

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AS Assignment

Owner name: KAPP WERKZEUGMASCHINEN GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KRAMER, STEFAN;SCHNEIDER, STEFAN;HEMPEL, HEIKE;SIGNING DATES FROM 20180405 TO 20180504;REEL/FRAME:046101/0192

Owner name: NILES WERKZEUGMASCHINEN GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KRAMER, STEFAN;SCHNEIDER, STEFAN;HEMPEL, HEIKE;SIGNING DATES FROM 20180405 TO 20180504;REEL/FRAME:046101/0192

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STCB Information on status: application discontinuation

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