DE1547C - Twist drill grinding machine - Google Patents

Twist drill grinding machine

Info

Publication number
DE1547C
DE1547C DE1547DA DE1547DA DE1547C DE 1547 C DE1547 C DE 1547C DE 1547D A DE1547D A DE 1547DA DE 1547D A DE1547D A DE 1547DA DE 1547 C DE1547 C DE 1547C
Authority
DE
Germany
Prior art keywords
grinding machine
twist drill
drill
drill grinding
grinding 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.)
Expired - Lifetime
Application number
DE1547DA
Other languages
German (de)
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.)
Elsaessische Maschb Gesellschaft
Original Assignee
Elsaessische Maschb Gesellschaft
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 of DE1547C publication Critical patent/DE1547C/en
Application filed by Elsaessische Maschb Gesellschaft filed Critical Elsaessische Maschb Gesellschaft
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills

Description

Ein säulenförmiges, guiseisernes Gestell trägt oben einen Spindelstock mit rotirender Stahlwelle, an deren vorderem Ende eine Schleifscheibe sitzt, seitlich und unterhalb der Scheibe einen Schlitten, der sich in verticaler Bahn einstellen läfst. Auf diesem Schlitten läfst sich um einen Zapfen und in prismatischer Führung ein zweiter, halbkreisförmiger Schlitten nebst Aufspannvorrichtung drehen, mittelst Handrädchen und Schnecke und liegt der Drehpunkt des letzteren um ein gewisses Maafs unterhalb der Unterkante der Schleifscheibe.A column-shaped, guise-iron frame carries a headstock with a rotating steel shaft, at the front end of which there is a grinding wheel, to the side and below the wheel a slide that can be adjusted in a vertical path. You roll on this sledge a pin and a prismatic guide, a second, semicircular slide together with a jig turn, by means of handwheels and a worm, and the fulcrum of the latter is a certain amount below the Lower edge of the grinding wheel.

Der zu schleifende Bohrer wird unter einer bestimmten Neigung gegen die Schleifscheibe eingespannt und streift diese, indem sie mittelst eines Handgriffes auf ihre Axe hin- und hergeschoben wird, genau über die eine der beiden Schnittkanten des Bohrers; gleichzeitig wird der rotirende Schlitten um ein gewisses Bogenstück gedreht und dadurch die Fläche hinter der Schnittkante des Bohrers gleichmäfsig um einen bestimmten Grad zurückgeschliffen. Der Grad dieses Rückschnittes hängt ab von dem verticalen Abstande des Drehungspunktes gegen die Unterkante der Schleifscheibe.The drill to be ground is at a certain inclination against the grinding wheel clamped and brushed against it by pushing it back and forth on its axis by means of a handle will, exactly over one of the two cutting edges of the drill; at the same time the rotating carriage rotated around a certain arc and thereby the area behind the The cutting edge of the drill is ground back evenly by a certain degree. The degree this cut back depends on the vertical distance between the point of rotation and the lower edge the grinding wheel.

Ist die eine Schnittkante fertig, so wird nach Lösung der Klemmbackenschraube der Bohrer um i8o° gedreht, diese Position durch die Flügelschraube fixirt und die Klemmbackenschraube wieder geschlossen. Nach Vornahme der gleichen Operation wie vorbeschrieben, ist der Bohrer fertig, beide Schnittflächen sind vollkommen richtig, symmetrisch und die Spitze genau centrisch. If one cutting edge is finished, the drill becomes after loosening the clamping jaw screw rotated i8o °, this position through the wing screw fixed and the clamping jaw screw closed again. After doing the same Operation as described above, the drill is done, both cut surfaces are perfect correct, symmetrical and the point exactly centric.

Ein Stellschräubchen mit feinem Gewinde dient zur genauen Einstellung des Bohrers. Der Klemmbacken-Mechanismus sitzt mittelst excentrischem Zapfen derart in einem Ansatz des Drehschlittens, dafs er nach rückwärts oder vorwärts geschlagen werden kann, je nachdem der Bohrer rechtes oder linkes Gewinde hat.An adjusting screw with a fine thread is used for precise setting of the drill. Of the The clamping jaw mechanism sits in an approach of the by means of an eccentric pin Rotary slide so that it can be struck backwards or forwards, depending on the Drill has right or left thread.

Patent-Anspruch: Die vorbeschriebene zur Erzielung der richtigen Gestaltung der Bohrerspitze combinirte Anordnung einer Spiralbohrer-Schleifmaschine. Patent claim: The one described above to achieve the correct design of the drill tip Combined arrangement of a twist drill grinding machine.

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims (1)

1877.1877. Klasse 67.Class 67. ELSÄSSISCHE MASCHINENBAU-GESELLSCHAFT in GRAFENSTADENALSATIAN MACHINERY COMPANY in GRAFENSTADEN im Elsass.in Alsace. Spiralbohrer - Schleifmaschine.Twist drill grinding machine. Patentirt im Deutschen Reiche vom 15. September 1877 ab.Patented in the German Empire on September 15, 1877.
DE1547DA 1877-09-14 1877-09-14 Twist drill grinding machine Expired - Lifetime DE1547C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1547T 1877-09-14

Publications (1)

Publication Number Publication Date
DE1547C true DE1547C (en)

Family

ID=70912194

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1547DA Expired - Lifetime DE1547C (en) 1877-09-14 1877-09-14 Twist drill grinding machine

Country Status (1)

Country Link
DE (1) DE1547C (en)

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