EP3450101A1 - Dispositif d'asservissement d'équilibrage de charge de moment pour une broche porte-meule - Google Patents

Dispositif d'asservissement d'équilibrage de charge de moment pour une broche porte-meule Download PDF

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Publication number
EP3450101A1
EP3450101A1 EP17188825.8A EP17188825A EP3450101A1 EP 3450101 A1 EP3450101 A1 EP 3450101A1 EP 17188825 A EP17188825 A EP 17188825A EP 3450101 A1 EP3450101 A1 EP 3450101A1
Authority
EP
European Patent Office
Prior art keywords
grinding
grinding spindle
spindle bearing
spindle
bearing
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.)
Withdrawn
Application number
EP17188825.8A
Other languages
German (de)
English (en)
Inventor
Michael Diethert
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.)
Wendt GmbH
Original Assignee
Wendt 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 Wendt GmbH filed Critical Wendt GmbH
Priority to EP17188825.8A priority Critical patent/EP3450101A1/fr
Publication of EP3450101A1 publication Critical patent/EP3450101A1/fr
Withdrawn legal-status Critical Current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
    • B24B41/007—Weight compensation; Temperature compensation; Vibration damping
    • 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
    • B24B41/042—Balancing mechanisms

Definitions

  • the invention relates to the moment load of a driven by a drive grinding spindle with a grinding spindle bearing and a spindle attachment for attaching at least one grinding wheel, wherein the grinding spindle by means of at least one correspondingly shaped grinding wheel allows both circumferential and surface grinding operations of a workpiece.
  • the grinding wheel can be designed as a so-called "face and line grinding wheel”. This is a two-component design that combines different specifications. These can then be replaced separately even in case of wear. This offers the advantage that both circumferential and face grinding operations can be performed without tool change with the one mounted grinding wheel.
  • the spindle attachment may be provided at the lower end of the grinding spindle and the line disc is screwed under the spindle attachment.
  • the face-plate is then underneath and is screwed from above through the main body of the line-disc with this.
  • the line disk or the face disk can be used for machining.
  • the off-center force input varies as a result of the surface of the grinding wheel in engagement, whereby a corresponding moment load acts on the grinding spindle bearing.
  • the disadvantage here is that the moment load of the grinding spindle bearing is thus different for the different types of use and thus it comes to a non-uniform and possibly also increased wear in different areas of the grinding spindle bearing.
  • the object of the invention is to avoid the aforementioned disadvantages and to provide a way to counteract such different moment loads.
  • a device for force compensation of the moment load for a driven by a drive grinding spindle with a grinding spindle bearing and a spindle attachment for attachment of at least one grinding wheel wherein the grinding spindle by means of at least one appropriately designed grinding wheel both circumferential and surface grinding machining of a workpiece in which the grinding spindle bearing is provided with an adjusting yoke against which acts at least one force acting coaxially to the axis of rotation of the grinding spindle, by means of which the grinding spindle bearing can be acted upon by a specific moment load, wherein the at least one force actuation is / are provided such that it causes it resulting torque load of the grinding spindle bearing counteracts the resulting from the circumferential and / or surface grinding machining moment load of the grinding spindle bearing.
  • the torque load of the grinding spindle bearing can be standardized for the different types of use, whereby a non-uniform and possibly also increased wear in different areas of the grinding spindle bearing can be counteracted.
  • the adjustment yoke can be provided on the fixed bearing side of the grinding spindle bearing.
  • At least one force actuation by a double-acting hydraulic cylinder or a spindle drive may be formed, so that a deflection in opposite directions by means of a single power operation is possible.
  • At least two power operations can be provided, of which at least one Force actuation is provided such that the resulting torque load of the grinding spindle bearing caused by the peripheral grinding machining counteracts the torque bearing of the grinding spindle bearing and of which on the other at least one other is provided such that the resultant torque load of the grinding spindle bearing caused the surface grinding machining counteracts the resulting moment load of the grinding spindle bearing.
  • At least one force operation can act along a direction which lies in a plane defined by the rotation axis of the grinding spindle and the connecting line between the center of the grinding wheel and the contact point of the grinding wheel with the workpiece to be ground during grinding.
  • At least one force actuation can also be provided such that the resulting moment load of the grinding spindle bearing caused by it counteracts the torque load of the grinding spindle bearing resulting from the drive.
  • two force actuations designed as a single-acting hydraulic cylinder can be provided, which are provided diametrically to the axis of rotation of the grinding spindle and each acting along one direction, both in a plane passing through the axis of rotation of the grinding spindle and the connecting line between the center of the grinding wheel and the Contact point of the grinding wheel is clamped with the workpiece to be ground during grinding.
  • the grinding wheel may comprise, on the one hand, a line wheel for peripheral grinding machining and a face wheel for surface grinding machining.
  • the line disk can be screwed under the spindle attachment.
  • the face-plate can be arranged below the line-disk and with this be screwed, preferably from above through the body of the line-disk.
  • the single FIGURE shows a device 1 for force compensation of the moment load, which is provided on a grinding spindle 4.
  • the grinding spindle 4 is provided with a grinding spindle bearing 5 and a spindle attachment 6 for fastening at least one grinding wheel 7 and is driven by a drive not shown in the drawing.
  • the grinding wheel 7 allows both circumferential and surface grinding operations of a workpiece also not shown in the drawing.
  • the grinding wheel 7 comprises on the one hand a line wheel 2 for the peripheral grinding machining and a face wheel 3 for the surface grinding machining.
  • the line disk 2 is screwed in the embodiment shown below the spindle attachment 6, and the face plate 3 is disposed below the line plate 2 and screwed thereto.
  • the grinding spindle bearing 5 is provided with an adjusting yoke against which at least one force acting on the grinding spindle 4 coaxial with the axis of rotation (marked "A" in the drawing) acts.
  • A the force acting on the grinding spindle 4 coaxial with the axis of rotation
  • the force actuation is provided in such a way that the resultant moment load of the grinding spindle bearing 5 caused by it counteracts that moment load of the grinding spindle bearing 5 which results from the circumferential and / or surface grinding machining.
  • the adjusting yoke 8 is provided on the fixed bearing side of the grinding spindle bearing 5.
  • the power operation acts along a direction which lies in a plane which is spanned by the axis of rotation of the grinding spindle and the connecting line between the center of the grinding wheel 7 and the contact point of the grinding wheel 7 with the workpiece to be ground during grinding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP17188825.8A 2017-08-31 2017-08-31 Dispositif d'asservissement d'équilibrage de charge de moment pour une broche porte-meule Withdrawn EP3450101A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17188825.8A EP3450101A1 (fr) 2017-08-31 2017-08-31 Dispositif d'asservissement d'équilibrage de charge de moment pour une broche porte-meule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17188825.8A EP3450101A1 (fr) 2017-08-31 2017-08-31 Dispositif d'asservissement d'équilibrage de charge de moment pour une broche porte-meule

Publications (1)

Publication Number Publication Date
EP3450101A1 true EP3450101A1 (fr) 2019-03-06

Family

ID=59745826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17188825.8A Withdrawn EP3450101A1 (fr) 2017-08-31 2017-08-31 Dispositif d'asservissement d'équilibrage de charge de moment pour une broche porte-meule

Country Status (1)

Country Link
EP (1) EP3450101A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003095862A1 (fr) * 2002-05-14 2003-11-20 Skf Autobalance Systems Ab Systeme et procede de compensation automatique des forces de resistance non equilibrees
US20060065415A1 (en) * 2004-09-29 2006-03-30 Berg Frederic P Active rotational balancing system for orbital sanders

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003095862A1 (fr) * 2002-05-14 2003-11-20 Skf Autobalance Systems Ab Systeme et procede de compensation automatique des forces de resistance non equilibrees
US20060065415A1 (en) * 2004-09-29 2006-03-30 Berg Frederic P Active rotational balancing system for orbital sanders

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