EP0901856A2 - Outil de meulage avec deux meules pour préparation de soudage - Google Patents

Outil de meulage avec deux meules pour préparation de soudage Download PDF

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Publication number
EP0901856A2
EP0901856A2 EP98116142A EP98116142A EP0901856A2 EP 0901856 A2 EP0901856 A2 EP 0901856A2 EP 98116142 A EP98116142 A EP 98116142A EP 98116142 A EP98116142 A EP 98116142A EP 0901856 A2 EP0901856 A2 EP 0901856A2
Authority
EP
European Patent Office
Prior art keywords
hand
tool according
grinding
drive
held 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.)
Granted
Application number
EP98116142A
Other languages
German (de)
English (en)
Other versions
EP0901856B1 (fr
EP0901856A3 (fr
Inventor
Horst Grupe
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.)
Mv Marketing and Vertriebs-Gmbh & Co KG Wielander and Schill
Original Assignee
Mv Marketing and Vertriebs-Gmbh & Co KG Wielander and Schill
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 Mv Marketing and Vertriebs-Gmbh & Co KG Wielander and Schill filed Critical Mv Marketing and Vertriebs-Gmbh & Co KG Wielander and Schill
Publication of EP0901856A2 publication Critical patent/EP0901856A2/fr
Publication of EP0901856A3 publication Critical patent/EP0901856A3/fr
Application granted granted Critical
Publication of EP0901856B1 publication Critical patent/EP0901856B1/fr
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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools

Definitions

  • the invention relates to a hand-held material-removing tool in general, as well as a Grinding tool for sheet metal processing according to Preamble of claim 1 in particular.
  • a prerequisite for perfect spot welding is however, that all surfaces are metallic before welding are bare.
  • the grinding process preceding welding has so far been used in the workshops with the existing ones Tools performed.
  • Angle grinders, belt grinders, wire brushes or similar Devices for use in the area of the joining zone Remove primer and paint.
  • the process of exposing the sheet metal is very hands-free uneven and therefore cannot be guaranteed that existing material thicknesses are retained and not prevent the material from being too long Grinding process is weakened inadmissible.
  • the flying sparks that occur during angle grinding create a hazard for the processor.
  • the invention is therefore based on the object to avoid disadvantages described above and also a ergonomic, light and simple to provide manageable material-removing tools, which has a constant grinding quality throughout Ensures welding area.
  • both to be processed Sheet gripped securely on both sides by the grinding wheels if two of them each hold a grinding wheel Drive shafts can be swiveled at least one to the other is arranged.
  • both or one of the Drive spindles be designed as pendulum axles and such as the grinding wheel of pivotal movements of the operator decouple.
  • the invention in principle with back and forth would be feasible abrasive, includes most preferred embodiment with a drive device a rotary drive.
  • the grinding wheels rotationally symmetrical grinding wheels, like this one in the Utility model of the applicant of the present invention the title "Tool for material removal processing" and the same filing date as the present one Industrial property rights are described, the content of which is fully comprehensive is also the subject of this description.
  • This The grinding wheel is essentially characterized by a outer sheath that is automatically parallel to that too machining surface.
  • the tool according to the invention can be a grinding wheel Pendulum and a rigid axis to drive the grinding wheels have and it will still be tilted the tool always a reliable, over the entire Width of the grinding wheel achieved.
  • the hand-held material-removing tool at least one axial stop, the one Guide device of the grinding wheel relative to the edge of the sheet to be machined, preferably together with the appropriate choice of the width of the Abrasives precisely defined areas of the exposed Sheet surfaces can be specified in the simplest way.
  • the Operator only needs the tool according to the invention with the pull the axial stop along the sheet and thereby receive exposed sheet metal areas, which correspond to the respective Car manufacturers specified welding spots very precisely correspond.
  • the grinding wheel itself is detachably attached to the tool thereby a quick exchange of used grinding wheels enables.
  • the inventive tool for one-sided Processing for example on only one-sided or difficult accessible parts of a car body are used. This provides a universal tool which process almost all folds on body parts can and will switch to additional tools avoided.
  • the actuating element in the switched off basic position against switching on be secured can be unlocked in the Position of the actuator towards each other be pivotable and the drive motor in front or during the swiveling of the grinding bodies through the Actuator can be switched on.
  • the actuator Preferably can be unlocked by a simple longitudinal shift done by the actuator and by its Pressing in causes the grinding wheels to pivot become.
  • the drive motor pneumatic motor and its on-off valve has one integrated adjustable throttle.
  • the Drive motor powered by a mains or accumulator Electric motor, its torque and / or speed is electronically regulated.
  • Loops include all operations that lead to a Material removal and coatings or coatings on sheets and other materials such as Paint, dirt, corrosion or the like remove mechanical removal.
  • FIG. 1 is a Supervision of a hand-held material-removing tool 1 according to a first embodiment of the invention shows.
  • the tool 1 comprises a two-part housing 2, on its the actuating element 3 in its left side Movable in the longitudinal direction and at its upper end in the Housing 2 is held depressed.
  • the housing 2 forms one on the lower section Handle shell 4 for gripping the tool 1 in such a way that while holding the tool in one hand, the Actuator 3 relative to the housing 2 upwards moved and on the upper part 15 in the housing 2nd can be pushed in.
  • Two drive axles 5 protrude from the top of the housing 2, 6, the ends of which are rotationally symmetrical Grinding bodies 7, 8 are held against rotation.
  • the axial stop 9, 10 can either be permanently fixed be mounted or in another according to the invention Design in the axial direction of the drive axis 6 be adjustable. This allows a defined distance between the edge of a sheet to be machined and the through the grinding wheel 7, 8 surface to be machined can be set.
  • Preferred widths of the grinding bodies 7, 8 are approximately one up to three centimeters, the grinding wheel itself in the Are able to tilt parallel to one between these align inserted sheet 11. Such grinding tools are in the parallel mentioned in the beginning Utility model application of the same applicant described.
  • the housing 2 can also, as shown in Fig. 2, with a substantially U-shaped cover in cross section be provided, the drive shaft 6 and surrounds the grinding body 8 essentially concentrically.
  • the cover 12 can with not shown in the figures Suction devices, for example one Dust extraction device connected to so during grinding material created for the operator to be transported away harmlessly.
  • cover 12 can also because of its symmetry on the opposite side in Fig. 2 on the Housing are plugged in and protect against Dust forms when the grinding wheel 8 alone, i.e. just with the right side of the sheet metal working tool is used. It is also within the scope of the invention attach two covers 12 on both sides.
  • FIG. 5 is a Cross-sectional view through the upper part of the housing 2 shows, in which that shown in Fig. 4 in cross-section Actuator 3 in its secured position is arranged.
  • the actuating element 3 is in a channel 13 of the housing 2 with rectangular cross-section and pivotable at its lower cylindrical end 14 held (see also Fig. 2, 3 and 8).
  • the upper end 15 of the actuator 3 abuts in it downward shifted secured position to one Projection 22 of the upper part of the housing 2 and can in this position can not be pressed into the housing 2. In this way, an unwanted start of the Drive motor 16 due to actuation of the switch or on valve 17 can be prevented.
  • the Drive spindle 21 is rigid in the housing 2, essentially parallel to its longitudinal axis and parallel to the longitudinal axis of the motor 16 arranged.
  • the drive spindles 18, 21 can one or more ball or Have plain bearings for the drive axles 5, 6 and connect these to the drive motor 16 so that one on site grinding in opposite directions 7 is generated relative to the grinding body 8. This means, that when the grinding wheel 7 makes a left turn, the grinding body 8 also a left turn around in experiences essentially the same angle of rotation.
  • Gearbox which a co-rotating movement of a drive motor 16 on a rigidly arranged spindle 21 or a rigid one held drive shaft 6 and a pivotally held Drive spindle 18 or drive axis 5 are the Known specialist.
  • Such a transmission can for example with three meshing gears and optionally using a gimbal be realized.
  • FIG. 6 in which the Actuator 3 in its unlocked, relative to Housing 2 is shown in the upward shifted position, in which the stop or projection 22 of the upper part of the Housing 2 no longer pushing the Actuator 3 prevented.
  • Tool 1 ready, i.e. can be switched on, however a sheet 11 between the grinding wheels 7 and 8 be inserted.
  • actuating element 3 as shown in Fig. 7, in pressed in the housing 2, it can hereby a Pivotal movement of the drive spindle 18 and the therein held drive axis 6 with the grinding body 7 after right to effect the workpiece 11, the following is explained in more detail.
  • the upper end 15 of the drive element 3 is not directly on the drive spindle 18 because it includes the tool 1 a control device for the Contact pressure of the drive spindles 18, 21 or the thereby driven grinding wheel 7, 8.
  • This control device comprises a cylindrical pin 23, whose left-hand end is expanded radially.
  • the cylindrical pin 23 is in a through hole 24 through the drive spindle 18 relative to the longitudinal axis of the cylindrical pin 23 slidable and rotatable held.
  • compression spring arranged so that the Pin 23 is spring loaded to the left.
  • the cylindrical pin 23 by means of the upper end 15 of the actuator 3 pressed to the right, so this causes a pivoting movement of the Drive spindle 18 about its pivot axis 19 to the right against the force of the leaf spring 20.
  • a Pin 25 perpendicular to the longitudinal axis of the pin 23 in this held tight can by rotating the pin 23 of the inserted therein Pin 25 change its position up or down. This can cause a force on the projection 26 of the upper part 15 generated in the longitudinal direction of the actuating element 3 become. This force can either be applied to the pen 25 acting tension spring or a torsion spring acting on the Pin 23 acts, are generated.
  • the valve chamber 30 is rotatable by an adjustable held cup-shaped element 32 formed on the right side bottom a slot in the manner of a Screw head slot is formed, by means of which the cup-shaped element 32 rotatable about its longitudinal axis is.
  • the through opening 31 can be relative to the feed channel 33 moved and changed in their opening width. This results in a throttling effect, by means of which the performance of the pneumatic drive motor 16 exactly and can be set in an extremely compact manner.
  • the tool 1 according to the invention can also be used respective working prints or for different grinding media 7, 8 can be optimized.
  • the Drive motor 16 a mains or battery operated Be electric motor, in which case the on-valve 17 by an electrical or an electronic switch is replaced, which is preferably also the setting of a Predeterminable speed and / or predeterminable torque allowed.
  • Tool 1 Due to the excellent performance characteristics of the Tool 1 according to the invention is its application, however in practice not on metal sheets or objects limited.
  • the abrasive bodies 7, 8 described above also Free plastic parts from coatings or coatings to subsequent gluing or chemical or to enable thermal welding.
  • the tool according to the invention for example in the case of mains or battery operated ones Embodiments for the preparatory work in painting Metal grids, banisters or similar to use columnar or prismatic workpieces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP98116142A 1997-09-08 1998-08-27 Outil de meulage avec deux meules pour préparation de soudage Expired - Lifetime EP0901856B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29716114U 1997-09-08
DE29716114U DE29716114U1 (de) 1997-09-08 1997-09-08 Integrierter Doppelfalzschleifer für die handwerkgerechte Schweißvorrichtung

Publications (3)

Publication Number Publication Date
EP0901856A2 true EP0901856A2 (fr) 1999-03-17
EP0901856A3 EP0901856A3 (fr) 1999-07-07
EP0901856B1 EP0901856B1 (fr) 2002-12-11

Family

ID=8045701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98116142A Expired - Lifetime EP0901856B1 (fr) 1997-09-08 1998-08-27 Outil de meulage avec deux meules pour préparation de soudage

Country Status (5)

Country Link
US (1) US6193592B1 (fr)
EP (1) EP0901856B1 (fr)
JP (1) JPH11151653A (fr)
DE (2) DE29716114U1 (fr)
TW (1) TW383248B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8272925B2 (en) * 2009-01-07 2012-09-25 Sears Brands, L.L.C. Multi-drum sander and/or rasp
DE202009001440U1 (de) * 2009-01-30 2010-07-01 C. & E. Fein Gmbh Kraftgetriebenes Handwerkzeug mit Spanneinrichtung für ein Werkzeug
US8872049B2 (en) 2012-04-18 2014-10-28 Milwaukee Electric Tool Corporation Trigger lock-on lock-off mechanism
CN203125269U (zh) * 2012-11-05 2013-08-14 富鼎电子科技(嘉善)有限公司 打磨装置
KR200471863Y1 (ko) * 2013-10-18 2014-03-19 임성태 당구대용 천 보수 연마기
CN110977695A (zh) * 2019-12-04 2020-04-10 北京轩宇智能科技有限公司 一种应用于叶片打磨的组合式姿态自适应打磨工具
CN117733584B (zh) * 2024-01-22 2024-05-31 徐州鸿业仪器仪表有限公司 一种阀门加工钻孔装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US721935A (en) * 1902-11-06 1903-03-03 Fuchs & Lang Mfg Company Machine for cleaning sheet-metal plates.
US798011A (en) * 1904-08-31 1905-08-22 Harry P Christie Horseshoe-calk sharpener.
US1006881A (en) * 1911-03-10 1911-10-24 George Russell Treating sheet metal.
US2362699A (en) * 1942-02-10 1944-11-14 Jerome J Kilian Knife sharpener
US2578149A (en) * 1948-08-06 1951-12-11 Tebaldo G Pocci Portable cylinder grinding tool
US2805529A (en) * 1955-11-01 1957-09-10 William E Mathes Polishing devices for silverware and the like
US3258878A (en) * 1963-10-31 1966-07-05 Oster Mfg Co John Knife and scissors sharpener improvements
US3468076A (en) * 1966-10-10 1969-09-23 Robert J Jones Dust collector for grinders
US3621505A (en) * 1970-03-12 1971-11-23 Harold Ray Vocker Dual rotary surface contacting tool
US4016684A (en) * 1975-11-05 1977-04-12 Ingersoll-Rand Company Safety lever lock
DE3010838A1 (de) * 1980-03-21 1981-10-01 Robert Bosch Gmbh, 7000 Stuttgart Als handwerkzeugmaschine ausgebildeter schwingschleifer
DE8206338U1 (de) * 1982-03-06 1982-08-05 Mertens, Peter, 4815 Schloß Holte-Stukenbrock Polier- und buerstenaufsatz
US4528777A (en) * 1984-01-30 1985-07-16 Ben Bernstein & Associates Knife sharpener
DE3607377A1 (de) * 1986-03-06 1987-09-10 Metabowerke Kg Elektromotorisch angetriebener schleifer
US4683682A (en) * 1986-09-19 1987-08-04 Dresser Industries, Inc. Safety lever for portable power tool
US4788797A (en) * 1987-10-09 1988-12-06 The Boeing Company Self-supporting hand-held grinding device
US5016398A (en) * 1989-06-06 1991-05-21 Akio Fukunaga Wire stripping apparatus
IT1233012B (it) * 1989-09-22 1992-03-14 Loredana Cremascoli Macchina per l'affilatura di coltelli
JPH058160A (ja) * 1991-06-28 1993-01-19 Kawasaki Steel Corp 金属ストリツプの端縁表面研削方法
US5299394A (en) * 1992-03-16 1994-04-05 Surdacki Richard G Method and apparatus for buffing spherical parts

Also Published As

Publication number Publication date
DE59806605D1 (de) 2003-01-23
DE29716114U1 (de) 1999-01-14
JPH11151653A (ja) 1999-06-08
EP0901856B1 (fr) 2002-12-11
TW383248B (en) 2000-03-01
EP0901856A3 (fr) 1999-07-07
US6193592B1 (en) 2001-02-27

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