CA2212546A1 - Grinding disc for deburring (whetting) of cutting tools - Google Patents

Grinding disc for deburring (whetting) of cutting tools

Info

Publication number
CA2212546A1
CA2212546A1 CA 2212546 CA2212546A CA2212546A1 CA 2212546 A1 CA2212546 A1 CA 2212546A1 CA 2212546 CA2212546 CA 2212546 CA 2212546 A CA2212546 A CA 2212546A CA 2212546 A1 CA2212546 A1 CA 2212546A1
Authority
CA
Canada
Prior art keywords
grinding
whetting
deburring
cutting tools
grinding disc
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
CA 2212546
Other languages
French (fr)
Inventor
Heinz Zerfass
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2212546A1 publication Critical patent/CA2212546A1/en
Abandoned legal-status Critical Current

Links

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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • 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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/08—Circular back-plates for carrying flexible material
    • B24D9/085—Devices for mounting sheets on a backing plate

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

Grinding disk (1) with eroded (10) (roughened) forepart surface (2), driving pin (6), and with its border (3) turned down in shape of a cylinder jacket with edged slots (11+11A) incorporated all round it, and which consists in synthetic material.

Description

D ~

The invention refers to a grinding disc for grinding and d~ (wh~tlil g) of culting tools, with a driving pin (6) which is c~h~ d by one end to a plate-shaped abrasive disc (1), and can be inserted at the other end into the drill chuck of a hand drill. Such pl~t~ e' . ' 8~inding disc is dbsc-il)ed in the D~-PS 35 16 474, and in the EPS 0459 138.
Former state ofthe art in case ofthe above m'rlti(~ grinding discs (1) with hard polished fore sur~ce and stick-on abrasive paper (4) is an exactly straight p- li~ of cutting tools up to a ~ ~;' value of O.25 MNh without burning the tool and ~ lth.g (del.~ g) it at the plastic edge within 30 seconds as sharp as a r~or blade.
1~ however, the grinding paper has to be changed or renewed~ it clings so much to the polished surface, that it can only be removed ~IL~ ~ 11y piece by piece. While doing this the polished surface will often be :' ~ ' The point ofthe i~ ;l tiOII was to avoid the sho vn defects with a grinding disc ofthe above rnentioned kind.
The task has been resolved by slightly ro~ .n;~ the whole fore surface ofthe disk (2). The so formed rninimal air cushions and the strongly reduced bonding points on the disk surface (2) make it possible that the abrasive paper can be rernoved without damage as often as wante~ Since p~lisl~ g and grinding is only possible with used abrasive paper (4), a cutting tool can no v be pl~,t~t~ with coarse, fine or totally worn abrasiw paper, or ~ha~ ~d and polished with an exactly straight cutting edge in one working cycle within the sho~test time.
At the same time the shape ofthe grinding disc was to be n~dified so that the time needed for , would be .1;,..; .:cl~d by more than two-thirds. The solution to this task consists in ~l~at~llg as many small edged slots (11 +1 lA) as possible over the whole breadth of the border (3) which is turned down into a cylinder jacket, If a :~Lal ~~d tool, which of course has g~t a burr, is now held slightly upon the rotating edge (3) of the disc (1), the burr will be ~ y shaved offai~er grinding both sides ofthe tool once or twice along the border. The tool is as sharp as a razor blade wi~in four or five seconds, which rneans a saving of time and wages. This system of grindirlg and S~ ulg can be applied in every place, even on building sites, and it is also practicable for lm~l~illed staff. Both, lefc- and right-handed persons, can deburr tools very fast.

:~ent AL~lic~c~n Zerf~fi ~

Key li:~t r~n:li~ disk 2. 3 Fore surfi~ce .) Border surf~ce .~ AbrasiYe paper ~. ~ B~ding a~ent.
6. ~ I~ri~ pin 7. ~ ~h~lulder on dr~i~ pin . ~ ~oncir~ular end rill cl:luckof a hand ~m driU
Fore ~Irf~ce whole ~lr~,-ahre eroded halp-edged slots work~d i~ the bordçr surf~ce

Claims (2)

1.) Grinding disk for grinding, and deburring (whetting) cutting tools with a driving pin(6) which is connected at one end with the grinding disk, and with its other end fitting into the drill chuck of a hand gun drill, characterized by the fore surface(2) having been eroded (slightly roughened)(10).
2.) Grinding disk for grinding, and deburring (whetting) according to claim 1.) characterized by small edged slots worked into the border which is turned down in shape of a cylinder jacket, over the whole breadth of the border surface.
CA 2212546 1997-07-08 1997-09-19 Grinding disc for deburring (whetting) of cutting tools Abandoned CA2212546A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19729125.2 1997-07-08
DE1997129125 DE19729125C1 (en) 1997-07-08 1997-07-08 Grinding plate for sharpening cutters

Publications (1)

Publication Number Publication Date
CA2212546A1 true CA2212546A1 (en) 1999-01-08

Family

ID=7835003

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2212546 Abandoned CA2212546A1 (en) 1997-07-08 1997-09-19 Grinding disc for deburring (whetting) of cutting tools

Country Status (4)

Country Link
AT (1) AT409603B (en)
CA (1) CA2212546A1 (en)
CH (1) CH693326A5 (en)
DE (1) DE19729125C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009058535A1 (en) 2009-12-16 2011-12-15 Heinz Zerfuss Grinding plate for use during working at e.g. garden region, has glued sandpaper and insertable, movable and foldable drilling machines, and hexagonal driving pin molded in full length and thickness as shoulder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510992A (en) * 1967-08-18 1970-05-12 Alma A Hutchins Backing pad for sanding discs
DE3516474C2 (en) * 1985-03-12 1987-02-05 Heinz 6570 Kirn Zerfaß Sanding disc
DE4013364A1 (en) * 1990-04-26 1991-10-31 Heinz Zerfass GRINDING PLATE
DE4241908A1 (en) * 1991-12-15 1993-06-24 Dualflex Co Grinding plate for fitment to grinding machine - releasably supports grinding sheet and on side facing sheet has lining with several fibres

Also Published As

Publication number Publication date
ATA118098A (en) 2002-02-15
DE19729125C1 (en) 1999-03-04
CH693326A5 (en) 2003-06-13
AT409603B (en) 2002-09-25

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Legal Events

Date Code Title Description
FZDE Dead