EP2006052A1 - Machine de meulage au disque émeri avec porte-foret ajustable - Google Patents
Machine de meulage au disque émeri avec porte-foret ajustable Download PDFInfo
- Publication number
- EP2006052A1 EP2006052A1 EP07110744A EP07110744A EP2006052A1 EP 2006052 A1 EP2006052 A1 EP 2006052A1 EP 07110744 A EP07110744 A EP 07110744A EP 07110744 A EP07110744 A EP 07110744A EP 2006052 A1 EP2006052 A1 EP 2006052A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drill bit
- chuck
- bushing
- emery wheel
- grinding machine
- 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
Links
- 229910001651 emery Inorganic materials 0.000 title claims abstract description 28
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/066—Work supports, e.g. adjustable steadies adapted for supporting work in the form of tools, e.g. drills
-
- 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
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
- B24B3/247—Supports for drills
Definitions
- the present invention relates to emery wheel grinding machine with an adjustable chuck, and more particularly, to an emery wheel grinding machine equipped with an adjustable drill bit chuck suitable for shaving the drill bit or a cutter of a two or more faced and variously lengthed blade of a hobbing cutter other than a single blade one.
- a conventional portable grinding machine as it was disclosed and published by Taiwan Pat. No. 286610 , 155338 , is composed of a housing, a cap covered at one end thereof, a transmission gearing equipped in the housing, a emery wheel and guiding members.
- the whole unit is set on an electric motor with the grinding machine coupled with the main shaft of the electrical drill so as to impart the rotational power of the electrical drill to the emery wheel with transmission gearing for running.
- a drill bit or cutter to be shaved is affixed to the machine unit with the guiding members so as to shave and grind the drill bit or cutter blade to a desired extent.
- the grinding or shaving effect can only reach to the very small part surrounding the central pointed drill head without reaching further to the portion of the blade edge at the recessed clearance, that greatly degrades the effect of finishing drill bit.
- this newly developed apparatus is essentially composed of an emery wheel 20 driven by a power source associated with a work fixture and a drill bit fixing means 30 for operation.
- the work fixture is cooperated with a first grinding base 40 for the purpose of affixing the blade of the drill bit in such a manner that its clearance angle is closely fitted to the tilted grinding surface 21 of the emery wheel 20.
- the work fixture is cooperated with a second grinding base 50 for the purpose of affixing the blade of the drill bit in such a manner that its spiral angle to be closely fitted to the tilted grinding surface 21 of the emery wheel 20.
- the drill bit fixing means 30 comprises a work fixture fastening base 31 for setting the work fixture, and a drill bit fastening jig 32.
- the work fixture fastening base 31 is provided with a mounting hole that allows the work fixture to be engaged in, and a rotation limiting post with a prescribed angle provided at the circumference of the mounting hole.
- the first grinding base 40 is engaged to a machine housing 10 in front of the emery wheel 20 aligned in the same center line, and is kept a distance with the emery wheel 20 equal to that between the work fixture fastening base 31 and the drill bit fastening jig 32.
- the first grinding base 40 is approximately configured in L shape with an arcuate sliding slot 41 formed at the base surface thereof. By fastening the arcuate sliding slot 41 with a bolt 42, the first grinding base 40 can practically keep a relevant angle with the emery wheel 20 so as to grind and shave a variety of drills such as standard drill, rugged drill, or ebonite drill having the blades of different clearance angles and recesses.
- the first grinding base 40 has a vertical wall 46 on which being provided with a mounting hole 43 for engaging the work fixture therein, and two rotation limiting posts 44, 45 with a prescribed angle and distance are formed at the circumference of the mounting hole 43.
- the mounting hole 43 is upwardly inclined with an angle about 10 ⁇ 25° in order to fit the direction of the blade of the drill bit to be shaved.
- the second grinding base 50 is engaged to the machine housing 10 with a bolt 51 above the emery wheel 20 keeping a distance with the latter equal to that between the work fixture fastening base 31 and the drill bit fastening jig 32.
- the second grinding base 50 has a mounting hole 52 for engaging the work fixture therein and a rotation limiting post 53 with a prescribed angle standing on the circumference of the mounting hole 52.
- the present invention is to provide an emery wheel grinding machine with adjustable bit chuck which has a tilted T-bushing, and its outer flange is provided with several stop traps with the number corresponding to that of the blades of a hobbing cutter to be shaved. On the outer flange of the T-bushing is also provided with two stop pins for defining the turning angle of the head of the hobbing cutter.
- the tilted T-bushing of the present invention is not only able to adjust the chuck angle according to the figure and number of blades of the hobbing cutter, but also can control the turning angle of the hobbing cutter with the stop pins so that the clearance angles and the recesses between the blades can be effectively shaved.
- the adjustable drill bit chuck of the present invention which accommodate a grinder 100, is provided with a first drill chuck 100A and a second drill chuck 100B.
- the former has a containment hole 101
- the latter has a T-bushing 200 with a containment hole 102 respectively.
- One end 201 of the T-bushing 200 can be inserted into the containment hole 101, while the other end has a larger outer diameter such that an outer flange 202 is emerged out of the containment hole 101 after insertion.
- Two, three, or four pairs of stop traps 203 are provided along the circumference of the outer flange 202 according to the number of blades of the drill or hobbing cutter to be shaved.
- the stop traps 203 can be engaged with corresponding clamp studs 103 which are provided on the outer surface of the drill chuck so as to hold the T-bushing 200 in place in the containment hole 101 of the drill chuck.
- the T-bushing 200 has a tapered hole 204 in it with a taper angle such that the blade of the drill or hobbing cutter can keep a prescribed inclination angle with the emery wheel when the drill or cutter head is inserted into the tapered hole 204.
- the adjustable drill chuck is provided with two pairs of stop pins 301, 302 along the outer flange 202 of the T-bushing 200 so as to control the turning angle of the drill bit chuck.
- the confinement grooves 401, 402 and the stop pins 301, 302 cooperate to control the turning angle of the chuck head 400 by their mutual positional relation thereby defining the length of the cutter blade to be shaved.
- the T-bushing 200 of the adjustable chuck is not only for holding a hobbing cutter 500 to be shaved by exposing a blade length 501, but also can serve in the second drill chuck 100B to finish the clearance angles 502 or recesses 503 of the cutter blades.
- a tilted T type emery wheel 600 is used in the present invention, it is provided an outer ring 601 with larger diameter than that of the main wheel 600 at one side thereof, the grinding surface of the outer ring 601 is covered with a preferably thick emery compounds.
- the chuck head 400 holding the hobbing cutter 500 at the chuck side is inserted into the tapered hole 204 in the T-bushing 200 so as to bring the hobbing cutter 500 in contact with the main body of the emery wheel 600 with a tilted angle ⁇ .
- the hobbing cutter 500 can be settled to shave its blade.
- the hobbing cutter 500 is in contact with the main body of the emery wheel 600 with a tilted angle ⁇ , the tilted blade can be easily shaved.
- the blades 504, 505 with different length can be effectively shaved by turning the chuck head from 0° to 180°.
- a clearance angle ⁇ 1 of the hobbing cutter 500 is to be shaved, at first the T-bushing 200 is inserted into the Y direction containment hole 101 of the second bit chuck 100B, and then by inserting the chuck head 400 which holds the hobbing cutter 500 into the tapered hole 204 of the T-bushing 200 such that the hobbing cutter 500 is in contact with the outer ring 601 of the emery wheel 600 with a tilted angle ⁇ thereby making the cutter 500 to incline a certain angle against the edge 602 of the outer ring 601.
- the clearance angle of the blade of the cutter 500 can be easily shaved.
- the present invention can be applied to shave and finish the hobbing cutter 500 with two, three or even four blades conveniently and easily only by turning the T-bushing 200.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20070110744 EP2006052B1 (fr) | 2007-06-21 | 2007-06-21 | Machine de meulage au disque émeri avec porte-foret ajustable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20070110744 EP2006052B1 (fr) | 2007-06-21 | 2007-06-21 | Machine de meulage au disque émeri avec porte-foret ajustable |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2006052A1 true EP2006052A1 (fr) | 2008-12-24 |
EP2006052B1 EP2006052B1 (fr) | 2014-04-16 |
Family
ID=38626306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20070110744 Active EP2006052B1 (fr) | 2007-06-21 | 2007-06-21 | Machine de meulage au disque émeri avec porte-foret ajustable |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2006052B1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010146422A1 (fr) * | 2009-05-15 | 2010-12-23 | Nordutensili S.R.L. | Machine d'aiguisage portable pour aiguiser des mèches à bois |
WO2012164522A1 (fr) | 2011-06-03 | 2012-12-06 | Nordutensili S.R.L. | Machine à meuler automatique pour fraises en bout pour du bois, pouvant être programmée avec lecture optique des caractéristiques géométriques et avec affûtage informatisé |
CN105415176A (zh) * | 2014-09-12 | 2016-03-23 | 深圳盟星科技有限公司 | 一种万向夹头 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110802447B (zh) * | 2018-08-06 | 2021-04-09 | 洪逸博 | 能任意调整二斜面或三斜面钻头静点大小的钻头磨刃机 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1020523A (fr) * | 1950-06-19 | 1953-02-06 | Gabarit porte-outil pour affûter les mèches hélicoïdales sur tous types de tourets à meuler | |
US2958167A (en) * | 1958-05-09 | 1960-11-01 | Seth Silverman | Grinder fixture |
US3039244A (en) * | 1961-03-06 | 1962-06-19 | Wynn S Vickerman | Tool grinding fixture |
US6652367B1 (en) * | 2002-05-21 | 2003-11-25 | Cheng-Fu Lin | Drill bit grinding device |
-
2007
- 2007-06-21 EP EP20070110744 patent/EP2006052B1/fr active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1020523A (fr) * | 1950-06-19 | 1953-02-06 | Gabarit porte-outil pour affûter les mèches hélicoïdales sur tous types de tourets à meuler | |
US2958167A (en) * | 1958-05-09 | 1960-11-01 | Seth Silverman | Grinder fixture |
US3039244A (en) * | 1961-03-06 | 1962-06-19 | Wynn S Vickerman | Tool grinding fixture |
US6652367B1 (en) * | 2002-05-21 | 2003-11-25 | Cheng-Fu Lin | Drill bit grinding device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010146422A1 (fr) * | 2009-05-15 | 2010-12-23 | Nordutensili S.R.L. | Machine d'aiguisage portable pour aiguiser des mèches à bois |
WO2012164522A1 (fr) | 2011-06-03 | 2012-12-06 | Nordutensili S.R.L. | Machine à meuler automatique pour fraises en bout pour du bois, pouvant être programmée avec lecture optique des caractéristiques géométriques et avec affûtage informatisé |
CN105415176A (zh) * | 2014-09-12 | 2016-03-23 | 深圳盟星科技有限公司 | 一种万向夹头 |
CN105415176B (zh) * | 2014-09-12 | 2017-12-22 | 深圳盟星科技股份有限公司 | 一种万向夹头 |
Also Published As
Publication number | Publication date |
---|---|
EP2006052B1 (fr) | 2014-04-16 |
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