EP0095110A1 - Dispositif pour la rectification des disques de freins montés sur des véhicules automobiles - Google Patents

Dispositif pour la rectification des disques de freins montés sur des véhicules automobiles Download PDF

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Publication number
EP0095110A1
EP0095110A1 EP83104750A EP83104750A EP0095110A1 EP 0095110 A1 EP0095110 A1 EP 0095110A1 EP 83104750 A EP83104750 A EP 83104750A EP 83104750 A EP83104750 A EP 83104750A EP 0095110 A1 EP0095110 A1 EP 0095110A1
Authority
EP
European Patent Office
Prior art keywords
drive
grinding
brake
disc
friction wheel
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
Application number
EP83104750A
Other languages
German (de)
English (en)
Other versions
EP0095110B1 (fr
Inventor
Ferenc Nagy
János Dipl.-Ing. Balazs
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.)
Aranykalasz MGTSZ
Original Assignee
Aranykalasz Mgtsz Rackeve
Alkoto Ifjusag Egyesules
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 Aranykalasz Mgtsz Rackeve, Alkoto Ifjusag Egyesules filed Critical Aranykalasz Mgtsz Rackeve
Priority to AT83104750T priority Critical patent/ATE21847T1/de
Publication of EP0095110A1 publication Critical patent/EP0095110A1/fr
Application granted granted Critical
Publication of EP0095110B1 publication Critical patent/EP0095110B1/fr
Expired 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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/08—Portable grinding machines designed for fastening on workpieces or other parts of particular section, e.g. for grinding commutators

Definitions

  • the invention relates to a grinding device designed for re-grinding the brake disc of a motor vehicle disc brake, which is suitable for re-grinding the worn brake disc of any type without having to disassemble the wheel hub and the brake disc, the re-grinding of the surfaces of the brake disc in relation to the conventional one Machining technology with greater accuracy and in a shorter time is possible.
  • the invention is advantageous in that the brake disc is processed in its mounting position by means of the grinding device, which is fastened together with a high-speed drive motor for the grinding disc to the holder of the working cylinder of the disc brake and with which, in addition to performing the surface grinding on both sides of the brake disc, too whose continuous rotary feed can be carried out.
  • the grinding device can be equipped with a grinding wheel and the associated drive as well as with two grinding wheels with two associated drives.
  • the worn brake discs are reworked a maximum of three times in accordance with the technological regulations.
  • the brake disks have to be removed, which is laborious and time-consuming. You also have to disassemble the fasteners and the brake cylinder.
  • the brake disc is then taken to a specialist workshop and processed there, i.e. ground to size.
  • normal workshops are not equipped with the special machines required for this because they are complex and are not profitable for most workshops.
  • the brake discs are currently being replaced - in most cases. It is also known to rework the brake discs by turning them instead of regrinding them.
  • this method is unsatisfactory because the surface that has been machined does not meet the quality requirements.
  • the brake disc When the brake pads are replaced, the brake disc is also replaced, but only if it is so worn that its condition no longer meets the values specified by the manufacturer. If, however, the brake disc is not exchanged together with the brake pads, the flat surfaces of the new brake pads do not interact with a polished, smooth surface of the brake disc, but with a technologically sufficient, but already worn, grooved surface.
  • the new brake pads and the old brake discs must therefore be mutually adjusted by grinding. However, this reduces their lifespan. To extend the lifespan and To raise the technical level, an ideal repair could be carried out in such a way that the surface of the brake disc is simultaneously machined by grinding when the brake pads are replaced. At the moment the finishing of the brake disks is carried out according to a modern technology on automatic devices, whereby the brake disks are simultaneously cut to size on both sides.
  • the only, but significant disadvantage here is that these machines only process new brake disks, because these machines can only be operated economically by the manufacturers.
  • a machine with which brake disks of motor vehicles already in operation can be processed was developed by the Swedish company VBG. Through these machines, however, the brake discs are only processed by turning, so that this machine can only be regarded as an emergency solution. The surface reworked in this way does not meet the requirements.
  • the object of the invention is therefore to provide a grinding device for brake discs, with which - in accordance with modern requirements - the repair of a worn brake disc can be carried out economically by grinding precisely and systematically with the repair of the brake system.
  • the grinding device has a support bracket which can be fastened to the holder of the working cylinder instead of the working cylinder of the disc brake and which has two guides on which an adjusting frame is guided by means of an adjusting screw, to which a drive motor is fastened , its output shaft with a grinding wheel and a worm gear and a belt drive is coupled to a friction wheel that can be attached to the brake disk as a rotary drive of the brake disk.
  • the drive motor together with the grinding wheel, the worm gear and its drive pulley can be implemented on the opposite side of the receiving frame, the friction wheel having a second drive pulley on its side opposite to the first drive pulley, so that it is by means of of the belt can be coupled to the driven pulley of the worm drive of the converted drive motor.
  • a second drive motor with a second grinding wheel driven by the drive motor is arranged on the side of the support block opposite the drive motor, the drive motors together with the grinding wheels being adjustable by means of adjusting spindles.
  • the invention therefore provides a grinding device by means of which the brake discs can be re-ground in their installed position.
  • the grinding device is attached to the holder of the working cylinder of the disc brake. In addition to performing the surface grinding on both sides of the brake disc, it is continuously rotated during grinding.
  • the holder 5 of the working cylinder of the disc brake can be seen.
  • the grinding device is fastened to this holder 5 by means of a support block 19.
  • Several special bores are formed on the support bracket 19 so that the grinding device can be used universally regardless of the current position of the holder 5 and the current brake disc diameter.
  • two guide tubes 17, each projecting perpendicularly from the support bracket 19 are attached to each of the slide sleeves 18, the slide sleeves 18 being designed in such a way that they can be adjusted at four adjustment points.
  • a mounting frame which surrounds this on both sides, is fastened to the support bracket 19, to which the drive 23, which will be explained in detail below, is preferably fastened by means of screws.
  • an adjusting screw 20 is provided which projects through a threaded hole on the support bracket 19 and is held axially fixed but rotatable in the receiving frame 21.
  • the drive 23, which is fastened to the receiving frame 21 on one side of the support bracket 19, can contain an electric motor or a pneumatic motor.
  • the drive is provided with an electric motor 22, to the output shaft 14 of which a gear is connected, which consists of gear wheels 12, 13 and a worm gear 10, 11.
  • the gear of the drive 23 is designed as a branching gear, one output shaft 15, on which a grinding wheel 16 is seated, is driven at high speed via the bevel gears 12, 13 and the other output shaft 9 is driven at low speed via the worm gear 10, 11.
  • the shaft 15 of the grinding wheel 16 runs perpendicular to the surface of the brake wheel 6 to be machined.
  • the grinding device can also be provided with two grinding wheels 16.
  • An embodiment of this is shown in FIGS. 3 and 4.
  • a carriage 25 is movably mounted on the receiving frame 27 and the inner drive 24 of the second grinding wheel 16 is fastened to the carriage 25.
  • the drive 23 already known from the first exemplary embodiment is fastened to the receiving frame 27, so that the two drives 23, 24 with their grinding disks 16 encompass the brake disk 6 on both sides.
  • the adjusting spindle 28 or the adjusting spindle 26 connected to the guide tube or the guide tubes 17 are used to adjust the two grinding wheels 16 against one another and with respect to the support bracket 19.
  • the other structural components correspond to those of the embodiment from FIG. 1.
  • the grinding devices according to both embodiments are operated on an analog principle. This principle consists in that the brake disc 6 is machined with the aid of a high-speed grinding wheel 16 in the installed state of the brake disc 6. The grinding device is attached to the location of the previously removed working cylinder of the disc brake:
  • the brake disc 6 is not removed from its hub. During operation of the grinder, the primary movement performs the grinding wheel 16.
  • the brake disc 6 is driven via the worm gear 10, 11 mounted on the output shaft 14, the V-belt 1 and the friction wheel 4 pressed against the circumferential surface of the brake disc 6 at the side of the grinding disc 16.
  • the drive 23 together with the grinding wheel 16, the worm gear 10, 11 and its driven pulley 8 can be implemented on the opposite side of the receiving frame 21.
  • the friction wheel 4 can also be driven from this side, it has a drive pulley 2, 7 on its drive shaft 3 on both sides of the support bracket 19, so that it can be driven by means of the belt 1 either via a drive pulley 7 or the other drive pulley 2 and the auxiliary gear of the drive 23 can be driven, which consists of the shaft 9 with the driven pulley 8 and the worm wheel 11 and the worm 10 seated on the driven shaft 14 of the electric motor 22.
  • the brake disk 6 is therefore advanced during the grinding process by means of the friction wheel 4, which rests on the peripheral edge of the brake disk 6 and transmits the driving force to the brake disk 6 by friction.
  • the friction wheel 4 can also engage directly on the hub of the brake disc 6.
  • the drive 23 is adjustably attached to the receiving frame 21.
  • the grinding feed of the grinding wheel 16 takes place by displacing the mounting frame 21 with the aid of the adjusting screw 20.
  • the two guide tubes 17 and the four adjustable sliding sleeves 18 serve to fix the mounting frame 21 in any position.
  • the outer surface of the brake disc 6 is machined.
  • the drive 23 is moved to the opposite side of the receiving frame 21.
  • An electric motor drive is not absolutely necessary. It can be replaced by a pneumatic motor. Furthermore, deviating from the embodiment, for example, instead of the guide tubes 17, a prismatic guide can be built into the grinding device.
  • the two grinding wheels 16 are set with the aid of the adjusting spindles 26, 28.
  • a movable carriage 25 is arranged on the support bracket 27, which carries the inner drive 24.
  • the inner drive pulley of which is eliminated.
  • the grinding device according to the invention can be used for motor vehicles of any type.
  • the brake disc can be machined with the greatest accuracy - without disassembling the wheel hub and the disc brake.
  • the coaxiality of the wheel hub and the brake disc is ensured without breakage, which cannot be achieved with previous technology.
  • the brake discs can be run without wobbling errors with a significantly smaller tolerance than with conventional technology.
  • the worn brake disks do not need to be replaced, so that their service life is extended.
  • the grinding device according to the invention can be constructed and manufactured with less effort and in smaller dimensions than the conventional devices of the same purpose.
  • the grinding device according to the invention is not limited to its use in special workshops, but can be set up in conventional workshops, so that the reworking of the brake discs can be carried out routinely with the repair work on the entire brake system.
  • the handling of the grinding device according to the invention does not require any specially trained skilled workers. Its structure is very simple and its manufacture is in the Framework of conventional, simple technology feasible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Braking Arrangements (AREA)
EP83104750A 1982-05-21 1983-05-13 Dispositif pour la rectification des disques de freins montés sur des véhicules automobiles Expired EP0095110B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83104750T ATE21847T1 (de) 1982-05-21 1983-05-13 Schleifvorrichtung zum nachschleifen der montierten bremsscheibe einer kraftfahrzeugscheibenbremse.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU162582 1982-05-21
HU821625A HU186601B (en) 1982-05-21 1982-05-21 Equipment regulating brake disc

Publications (2)

Publication Number Publication Date
EP0095110A1 true EP0095110A1 (fr) 1983-11-30
EP0095110B1 EP0095110B1 (fr) 1986-09-03

Family

ID=10955382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104750A Expired EP0095110B1 (fr) 1982-05-21 1983-05-13 Dispositif pour la rectification des disques de freins montés sur des véhicules automobiles

Country Status (4)

Country Link
EP (1) EP0095110B1 (fr)
AT (1) ATE21847T1 (fr)
DE (2) DE3365823D1 (fr)
HU (1) HU186601B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201889A2 (fr) * 1985-05-14 1986-11-20 Galletti, Ermanno Dispositif pour meuler les freins à disque de véhicules à moteur
CN113043149A (zh) * 2021-04-19 2021-06-29 浙江机电职业技术学院 一种板材自动抛光装置及使用方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106112718A (zh) * 2016-07-01 2016-11-16 芜湖中驰机床制造有限公司 一种高精度平面磨床
CN112223086B (zh) * 2020-10-20 2022-04-08 嘉美瑞智能家居科技东台有限公司 一种用于板材抛光机的翻转式联动控制机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1577289A1 (de) * 1966-10-05 1970-04-09 Ammco Tools Inc Schleifeinrichtung fuer eine Drehmaschine zur Bearbeitung von Kraftfahrzeugbremsen
US3521411A (en) * 1966-05-21 1970-07-21 Teves Kg Alfred Disk-brake cleaning method
DE2835258A1 (de) * 1976-10-04 1980-02-21 Uno Ekman Tragbare drehvorrichtung
GB2085773A (en) * 1980-10-23 1982-05-06 Yeatman Reed Richard Brake disc machining apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521411A (en) * 1966-05-21 1970-07-21 Teves Kg Alfred Disk-brake cleaning method
DE1577289A1 (de) * 1966-10-05 1970-04-09 Ammco Tools Inc Schleifeinrichtung fuer eine Drehmaschine zur Bearbeitung von Kraftfahrzeugbremsen
DE2835258A1 (de) * 1976-10-04 1980-02-21 Uno Ekman Tragbare drehvorrichtung
GB2085773A (en) * 1980-10-23 1982-05-06 Yeatman Reed Richard Brake disc machining apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201889A2 (fr) * 1985-05-14 1986-11-20 Galletti, Ermanno Dispositif pour meuler les freins à disque de véhicules à moteur
EP0201889A3 (fr) * 1985-05-14 1989-05-17 Galletti, Ermanno Dispositif pour meuler les freins à disque de véhicules à moteur
CN113043149A (zh) * 2021-04-19 2021-06-29 浙江机电职业技术学院 一种板材自动抛光装置及使用方法
CN113043149B (zh) * 2021-04-19 2022-03-08 浙江机电职业技术学院 一种板材自动抛光装置及使用方法

Also Published As

Publication number Publication date
DE3365823D1 (en) 1986-10-09
HU186601B (en) 1985-08-28
DE8314290U1 (de) 1987-12-17
ATE21847T1 (de) 1986-09-15
EP0095110B1 (fr) 1986-09-03

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