DE579280C - Device for spherical grinding of circular knives - Google Patents
Device for spherical grinding of circular knivesInfo
- Publication number
- DE579280C DE579280C DEE41023D DEE0041023D DE579280C DE 579280 C DE579280 C DE 579280C DE E41023 D DEE41023 D DE E41023D DE E0041023 D DEE0041023 D DE E0041023D DE 579280 C DE579280 C DE 579280C
- Authority
- DE
- Germany
- Prior art keywords
- circular knives
- grinding
- spherical grinding
- circular
- knife
- 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
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
- B24B3/46—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of disc blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
Nach Patent 576 437 wird durch maschinelle kreisförmige Pendelung des ballig zu schleifenden Messers vor einer rotierenden Planschleifscheibe um einen außerhalb der Aufspannwellenachse liegenden Balrigkurvenmitteipunkt ein Balligschliff von Rund- oder Kreismessern erzielt.According to patent 576,437 is by machine circular oscillation of the convex knife to be ground in front of a rotating flat grinding wheel around one outside the Balrig curve center point lying on the clamping shaft axis, a crowned cut of round or Achieved circular knives.
Die dort beschriebene Facen- und Balligschliffmaschine hat den Nachteil, daß der ίο rotierende und das zu schleifende Messer berührende Schleifstein das Kreismesser nur an einer begrenzt schmalen Kreisringfläche und theoretisch nur in der Kreislinie berührt. Der Schleifstein wird also ungleichmäßig abgenutzt. Hierdurch ist nicht nur eine unrationelle Ausnutzung des Schleifmaterials, sondern auch die Entstehung von Riefen auf der Schleiffläche des Messers und eines Grates an der Schneidkante desselben bedingt, wodurch das Aussehen und die Schneidwirkung des Kreismessers ungünstig beeinflußt werden.The facet and crown grinding machine described there has the disadvantage that the ίο rotating knife and the knife to be sharpened touching the grinding stone only on a limited, narrow circular ring surface and theoretically only touched in the circular line. So the grindstone becomes uneven worn. This not only results in inefficient use of the grinding material, but also the formation of grooves on the grinding surface of the knife and a burr on the cutting edge of the same conditional, whereby the appearance and the cutting effect of the circular knife unfavorable to be influenced.
Die Mängel werden dadurch behoben, daß außer dem Werkstück auch das Werkzeug, und zwar um eine zur Werkstückschwingachse parallele Achse schwingbar ist und die Arbeitsfläche des Werkzeuges eine dessen Schwingungsradius entsprechende ballige Form besitzt.The deficiencies are remedied by the fact that, in addition to the workpiece, the tool, namely about an axis parallel to the workpiece oscillation axis and the The working surface of the tool has a spherical shape corresponding to its oscillation radius Owns shape.
Ein Ausführungsbeispiel ist in Abb. 1 und 2 dargestellt.An exemplary embodiment is shown in FIGS. 1 and 2.
Das zu schleifende Messer« schwingt mit dem Aufspannbock & in bekannter Weise um den Krümmungsniittelpunkt c der Ballig- kmved. Die Schleifscheiben schwingt ebenfalls mit dem Schleifscheibenbock/ um den Mittelpunkt g der kugeligen Schleiffläche h der Schleifscheiben.The knife to be sharpened swings with the jig & in a known manner around the center of curvature c of the crowned kmved. The grinding wheel also swings with the grinding wheel stand / around the center g of the spherical grinding surface h of the grinding wheels.
Abb. ι stellt eine Endlage der pendelnden Aggregate dar. Die Pfeile geben die Bewegungsrichtung an. Abb. 2 stellt die entgegengesetzte Endlage dar. Durch Bewegung der Aggregate in Pfeilrichtung gelangen diese wieder in die Stellung nach Abb. 1.Fig. Ι represents an end position of the oscillating aggregates. The arrows indicate the direction of movement at. Fig. 2 shows the opposite end position. By moving the units in the direction of the arrow, they arrive back to the position shown in Fig. 1.
Die Erfindung hat auch den Vorteil, daß die Balligkurve der Kreismesser nicht an die Kreisform allern gebunden ist. Durch geeignete Übersetzung kann jede elliptische Kurve geschliffen werden.The invention also has the advantage that the crowned curve of the circular knife does not adhere to the Circular shape is bound to all. With a suitable translation any elliptic curve be sanded.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEE41023D DE579280C (en) | Device for spherical grinding of circular knives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEE41023D DE579280C (en) | Device for spherical grinding of circular knives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE579280C true DE579280C (en) | 1933-06-23 |
Family
ID=7078986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEE41023D Expired DE579280C (en) | Device for spherical grinding of circular knives |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE579280C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2496517A1 (en) * | 1980-12-24 | 1982-06-25 | Kaliningr Tekhn I | METHOD FOR MACHINING A WORKPIECE BY A ROTARY TOOL WITH BLADE AND WORKPIECES IN ACCORDANCE WITH THE METHOD |
-
0
- DE DEE41023D patent/DE579280C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2496517A1 (en) * | 1980-12-24 | 1982-06-25 | Kaliningr Tekhn I | METHOD FOR MACHINING A WORKPIECE BY A ROTARY TOOL WITH BLADE AND WORKPIECES IN ACCORDANCE WITH THE METHOD |
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