EP0470337A1 - Abricht- und Verschleissmessgerät für Schleif- und Läppmaschinen - Google Patents

Abricht- und Verschleissmessgerät für Schleif- und Läppmaschinen Download PDF

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Publication number
EP0470337A1
EP0470337A1 EP91107911A EP91107911A EP0470337A1 EP 0470337 A1 EP0470337 A1 EP 0470337A1 EP 91107911 A EP91107911 A EP 91107911A EP 91107911 A EP91107911 A EP 91107911A EP 0470337 A1 EP0470337 A1 EP 0470337A1
Authority
EP
European Patent Office
Prior art keywords
dressing
measuring
head
wear
tool
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Withdrawn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
EP91107911A
Other languages
German (de)
English (en)
French (fr)
Inventor
Dieter Dr.-Ing. Simpfendörfer
Alexander Dipl.-Ing. Hofsess
Phon Dipl.-Ing. Dao-Xuan
Klaus Biebesheimer
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.)
Diskus Werke Frankfurt am Main AG
Original Assignee
Diskus Werke Frankfurt am Main AG
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 Diskus Werke Frankfurt am Main AG filed Critical Diskus Werke Frankfurt am Main AG
Publication of EP0470337A1 publication Critical patent/EP0470337A1/de
Withdrawn legal-status Critical Current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
    • 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
    • B24B49/18—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 taking regard of the presence of dressing tools
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/02—Devices or means for dressing or conditioning abrasive surfaces of plane surfaces on abrasive tools

Definitions

  • the invention relates to a dressing and wear measuring device for grinding and lapping machines, in particular for use on tool disks used on the end face for parallel machining of workpieces.
  • the task of the dressing and wear measuring device is to initiate dressing either automatically or via operator intervention and to carry it out independently for wear measurement when a predetermined wear limit value has been reached and recorded in a post-process manner, the height of which correlates with the required shape accuracy of the parts to be machined .
  • the dressing and wear measuring device is characterized in that the dressing and measuring head can be moved in and out with separate guide systems, the measuring head being lifted together on the one hand when the upper tool disk is lifted off upstream dressing head for point-by-point wear measurement of the lower tool disc can be retracted and, on the other hand, when the measuring head is clamped in the rest position, the dressing head can be retracted alone for the purpose of bilateral dressing with tool discs located one above the other in the dressing distance.
  • the separate method of dressing and wear measuring device means that the highly sensitive measuring device remains in a dirt-protected rest position during dressing, especially since, in contrast to DE-AS 21 08 070, an intermittent positioning movement composed of individual measuring cycles is necessary because the highest accuracy requirements are required make it necessary for the entire system to be at rest at the moment when the measured value is recorded.
  • the retractable measuring head with integrated measuring probe is assigned a measuring bridge that can be placed on the lower tool disc when the upper tool disc is raised, and the measuring probe can be brought from a measuring position to a reference position orthogonally to the radial travel direction by means of a lifting device between two fixed stops, the actual recording of the measurement or reference value is carried out via the motor-driven push-button quill.
  • the measuring bridge for the reference measurement can be inserted linearly over the lower tool disk by means of a positioning cylinder and subsequently tilted by means of a swivel cylinder up to the radial support at two opposite points of the outer edge area of the lower tool disk and free of external loads in the overlying position.
  • the dressing and wear measuring device shown in the drawing in FIGS. 1 and 2 has a dressing head 1 with dressing tools 2 arranged on both sides and a measuring head 3 located behind it with measuring probe 4, both of which (1 and 3) with separate guide systems radially to the lower tool disk 5 when the upper tool disc 5 'for the purpose of measuring the wear profile of the lower tool disc are retractable and extendable.
  • the guide system for the measuring head 3 consists of two superimposed guide rods 6, which can be set in translation by means of a threaded spindle 7 with nut 8 and crossbar 9.
  • a drive motor 10 with belt drive 11 and bearing 12 for the spindle 7 with nut 8 and cross member 9 for translational adjustment with yoke connection 13 is used.
  • the guide rods 6 are further guided in bearings 14 and 15 of a bearing housing 16 and are actuated when the clamping device 17 is actuated the crossmember 9 is carried by the spindle nut 8 and held in the starting position when the clamping device 18 is actuated in the bearing housing 16, which bearing housing 16 is fastened to the machine by means of the carrier plate 19.
  • the dressing head 1 is guided in the bearings 21 and 22 of the housing 16 by means of two guide rods 20 running past the measuring head 3, which preferably have different diameters, and are (20) with the dressing head 1 likewise by the drive motor 10 with belt drive 11 and bearing 12 on the spindle nut 8 with cross-beam 9 in translation.
  • the clamping device 17 in the crossmember 9 is actuated, a common translational movement of the dressing head 1 and measuring head 3 takes place for the measuring process, while when the clamping device 18 is actuated, the dressing head 1 is moved alone for the dressing process.
  • the dressing head 1 sits on a U-piece in front of the measuring head 3, which U-piece connects the two guide rods 20.
  • FIGs 2 and 3 the assignment of a measuring bridge 23 to the measuring head 3 with probe 4 and upstream dressing head 1 with dressing tools 2 is shown.
  • the measuring probe 4 fastened to the lifting device 25 via the holder 24 can be brought between two fixed stops 26 and 27 orthogonally to the radial direction of travel from the measuring position into the reference position, the actual measuring process being carried out via the motor-driven probe sleeve 28.
  • the measuring bridge 23 with an integrated reference ruler 29 can be inserted linearly above the lower tool disk 5 by means of the positioning cylinder 30 and guide rod 31 and subsequently by means of the swivel cylinder 32 until it is radially supported at two opposite points 33 and 34 of the outer edge area of the lower tool disk 5 which is subject to a wear profile 35 tiltable, this (23) in the lying position is free of external loads.
  • the reference position R and the measuring position V are indicated on a radial line to the center of the pane; the measurements are carried out point by point on the measuring section S.
  • FIG. 5 there is still a dressing process with the sole actuation of the dressing head 1 with dressing tools 2 arranged on both sides the two tool disks 5 and 5 'located at a dressing distance from one another are shown with a guide rod 20.
  • the dressing and wear measuring device is attached to the machine on a carrier plate in such a way that the positioning movement takes place radially towards the central axis of the tool disks both during dressing and during wear measurement.
  • the structure of the device is characterized by the existence of a guide system for the dresser and one for the probe.
  • the feed movement is achieved in that a centrally arranged spindle is driven by a motor via a belt drive, as a result of which the spindle nut and, with it, the crossmember receiving a clamping device, perform a movement in the u direction, which is steered via the dresser guide rods.
  • a further clamping device which two clamping devices can be hydraulic clamping sleeves, it is ensured during dressing that the measuring system guide rods connected to one another via the yoke and with them the measuring head carrying the probe itself maintain an invariant u position; a design principle that enables dressing without having to carry the probe in the u direction.
  • the functional sequence valid for wear measurement provides for the two guide systems to be coupled to one another by actuating the first-mentioned clamping device and releasing the second-mentioned clamping device such that the measuring head together with the dresser can be moved in the u direction.
  • the measuring bridge is arranged along the dressing and wear measuring device, whereby it is moved from its starting position into the measuring position via a positioning cylinder and, after reaching the end position, is rotated by means of a swivel cylinder until it is placed on the tool disk about a moving guide rod.
  • the design principle provides for the relief of the measuring bridge after it is placed on the tool disk by storage in an elongated hole. It is important to align the measuring bridge in the attached state in a precise line of alignment with the u-direction of movement of the probe.
  • the contact points of the measuring bridge are preferably provided with an extremely small tip radius and are made of a wear-resistant material.
  • the actual measuring head contains a lifting device for moving the probe in the v-direction with the aim of bridging the height difference between the reference and measuring positions by moving against an upper and lower fixed stop.
  • the actual measuring process is carried out by moving the probe quill in the v-direction until it is placed on the reference ruler or alternatively on the tool disk by means of a button-immanent motor.
  • the wear profile is then presented in approximated form as a polygon, consisting of the measured values which result from the difference between the v-measurement and v-reference coordinates for each position approached in the u direction.
  • the probe tip which is made of a wear-resistant material, is provided with an extremely small radius.

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)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
EP91107911A 1990-07-26 1991-05-16 Abricht- und Verschleissmessgerät für Schleif- und Läppmaschinen Withdrawn EP0470337A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4023689 1990-07-26
DE19904023689 DE4023689A1 (de) 1990-07-26 1990-07-26 Abricht- und verschleissmessgeraet fuer schleif- und laeppmaschinen

Publications (1)

Publication Number Publication Date
EP0470337A1 true EP0470337A1 (de) 1992-02-12

Family

ID=6411016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91107911A Withdrawn EP0470337A1 (de) 1990-07-26 1991-05-16 Abricht- und Verschleissmessgerät für Schleif- und Läppmaschinen

Country Status (2)

Country Link
EP (1) EP0470337A1 (enrdf_load_stackoverflow)
DE (2) DE4023689A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998000264A1 (de) * 1996-07-01 1998-01-08 Vollmer Werke Maschinenfabrik Gmbh Maschine zum bearbeiten von zahnflanken eines schneidwerkzeugs

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020119173A1 (de) 2020-07-21 2022-01-27 Supfina Grieshaber Gmbh & Co. Kg System und Verfahren zum Abrichten einer Wirkfläche einer Schleifscheibe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490431A (en) * 1967-05-05 1970-01-20 La Salle Machine Tool Apparatus for dressing grinding wheels
DE2108070B2 (de) * 1970-02-21 1974-12-19 Toyoda Koki K.K., Kariya, Aichi (Japan) Vorrichtung zum Abrichten der Seitenflächen von Schleifmaschinen-Schleifscheiben
GB2139532A (en) * 1983-04-27 1984-11-14 Schaudt Maschinenbau Gmbh Method of dressing grinding wheels in grinding machines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3410507A1 (de) * 1984-03-22 1985-09-26 Diskus Werke Frankfurt Am Main Ag, 6000 Frankfurt Abrichteinrichtung fuer flachschleifen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490431A (en) * 1967-05-05 1970-01-20 La Salle Machine Tool Apparatus for dressing grinding wheels
DE2108070B2 (de) * 1970-02-21 1974-12-19 Toyoda Koki K.K., Kariya, Aichi (Japan) Vorrichtung zum Abrichten der Seitenflächen von Schleifmaschinen-Schleifscheiben
GB2139532A (en) * 1983-04-27 1984-11-14 Schaudt Maschinenbau Gmbh Method of dressing grinding wheels in grinding machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998000264A1 (de) * 1996-07-01 1998-01-08 Vollmer Werke Maschinenfabrik Gmbh Maschine zum bearbeiten von zahnflanken eines schneidwerkzeugs

Also Published As

Publication number Publication date
DE4023689A1 (de) 1992-02-06
DE9017628U1 (de) 1991-11-28
DE4023689C2 (enrdf_load_stackoverflow) 1992-10-22

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