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DE684838C - Machine for milling ellipse-like gears - Google Patents

Machine for milling ellipse-like gears

Info

Publication number
DE684838C
DE684838C DEB180986D DEB0180986D DE684838C DE 684838 C DE684838 C DE 684838C DE B180986 D DEB180986 D DE B180986D DE B0180986 D DEB0180986 D DE B0180986D DE 684838 C DE684838 C DE 684838C
Authority
DE
Germany
Prior art keywords
milling
pressure
workpiece
disc
master
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
Application number
DEB180986D
Other languages
German (de)
Inventor
Otto Knuettel
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.)
Bopp and Reuther GmbH
Original Assignee
Bopp and Reuther GmbH
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
Priority to DEB169435D priority Critical patent/DE668897C/en
Priority claimed from DEB169435D external-priority patent/DE668897C/en
Application filed by Bopp and Reuther GmbH filed Critical Bopp and Reuther GmbH
Priority to DEB180986D priority patent/DE684838C/en
Priority to GB19632/39A priority patent/GB531563A/en
Application granted granted Critical
Publication of DE684838C publication Critical patent/DE684838C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F15/00—Methods or machines for making gear wheels of special kinds not covered by groups B23F7/00 - B23F13/00
    • B23F15/02—Making gear teeth on wheels of varying radius of operation, e.g. on elliptical wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/10—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only
    • B23Q35/101—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool
    • B23Q35/102—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of one line
    • B23Q35/103—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of one line which turns continuously

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Milling Processes (AREA)
  • Gear Processing (AREA)

Description

B180986B180986

Bei der Fräsmaschine nach dem Hauptpatent wandert die Schneidzone des Wälzfräsers bei einem Umlauf des Werkstückes zweimal auf die linke und zweimal auf die rechte Seite der Fräsermitte. Der Wälzfräser ρ und die mit der Meisterscheibe h zusammenarbeitende Andruckscheibe q, welche die Stellung des Wälzfräsers im Raum bestimmt, liegen auf der gleichen Seite der das Werkstück, die Meisterscheibe und das Antriebsrad tragenden Welle /. Der Fräsdruck hat also die Neigung, die Meisterscheibe h von der Andruekscheibe q wegzudrücken. Die Kräfteverhältnisse sind also ungünstig, was die Genauigkeit der Fräsung beeinflußt.In the milling machine according to the main patent, the cutting zone of the hob moves twice to the left and twice to the right side of the cutter center when the workpiece rotates. The hob ρ and the pressure disk q, which cooperates with the master disk h and which determines the position of the hob in space, lie on the same side of the shaft / carrying the workpiece, the master disk and the drive wheel. The milling pressure therefore has a tendency to push the master disk h away from the pressure disk q . The balance of power is therefore unfavorable, which affects the accuracy of the milling.

Durch die Verbesserung, welche den Gegenstand der vorliegenden Erfindung bildet, sollen die Kräfteverhältnisse dadurch verbessert werden, daß die mit der Meisterscheibe zusammenarbeitende Andruckscheibe auf der dem Fräser entgegengesetzten Seite der Welle angeordnet ist. Ferner soll sich der Berührungspunkt zwischen Meisterscheibe und Andruckscheibe und der Mittelpunkt der Schneidzone des Fräsers in einer zur Andruckscheibe rechtwinkligen Ebene befinden.Through the improvement which forms the subject of the present invention, should the balance of power be improved by the fact that the one with the master disc cooperating pressure disc is arranged on the opposite side of the shaft to the milling cutter. Furthermore, the Point of contact between master disk and pressure disk and the center of the The cutting zone of the milling cutter is in a plane at right angles to the pressure disc.

Auf der beiliegenden Zeichnung ist die Verbesserung dargestellt, und zwar zeigtThe accompanying drawing shows the improvement, namely shows

Abb. ι eine Seitenansicht der geänderten Maschine.Fig. Ι a side view of the modified machine.

Abb. 2 und 3 stellen schematisch die Kräfteverhältnisse bei der Maschine nach dem Hauptpatent dar, währendFig. 2 and 3 show schematically the balance of forces in the machine after Main patent while

Abb. 4 und 5 die Kräfteverhältnisse nach der abgeänderten Bauart zeigen.Fig. 4 and 5 show the balance of power according to the modified design.

Abb. 6 ist eine schematische Darstellung der Konstruktion der Meisterscheibe.Figure 6 is a schematic representation of the construction of the master wheel.

Wie aus der Abb. ι hervorgeht, ist der Fräser ρ auf dem Maschinenbett α senkrecht verschiebbar, aber waagerecht unverschiebbar angeordnet, während die senkrechte Welle / mit dem Werkstück g der Antriebswelle i und der Meisterscheibe H von dem Bock u getragen werden, der in dem Bett« in der ίο Richtung ,auf den Fräser ρ waagerecht verschiebbar gelagert ist und von dem Gewicht χ nach links gezogen wird. Die Andruckscheibe Q ist in dem Maschinenbett a so gelagert, daß ihre Vorderfläche senkrecht zur Fläche der Meisterscheibe H steht. Die Antriebsscheibe i arbeitet mit der Antriebsschnecke s wie in dem Hauptpatent zusammen. As can be seen from Fig. Ι, the milling cutter ρ on the machine bed α is vertically displaceable, but horizontally immovable, while the vertical shaft / with the workpiece g of the drive shaft i and the master disk H are carried by the bracket u , which is in the Bed «in the ίο direction on which the cutter ρ is mounted so that it can be moved horizontally and is pulled to the left by the weight χ. The pressure disk Q is mounted in the machine bed a in such a way that its front surface is perpendicular to the surface of the master disk H. The drive pulley i works together with the drive worm s as in the main patent.

Wie aus den Abb. 2 und 3 hervorgeht, sind bei der. Maschine nach dem Hauptpatent der durch den Pfeil p1 angedeutete Druck des Fräsers gegen das Werkstück und der durch den Pfeil q1 bezeichnete Andrüekdruck der Scheibe q gleichgerichtet und wirken sich voll auf die sich drehenden Teile der Maschine aus, während bei der abgeänderten Form (Abb. 4 und 5) der von dem Fräser ausgeübte Druck px und der von der Andruckscheibe Q ausgeübte Druck Q1 entgegengesetzt gerichtet sind und sich infolgedessen ganz oder doch zum größten Teil ausgleichen.As can be seen from Figs. 2 and 3, are in the. Machine according to the main patent, the pressure of the milling cutter against the workpiece indicated by the arrow p 1 and the contact pressure of the disc q indicated by the arrow q 1 are rectified and have a full effect on the rotating parts of the machine, while the modified shape (Fig 4 and 5) the pressure p x exerted by the milling cutter and the pressure Q 1 exerted by the pressure disc Q are directed in opposite directions and as a result completely or at least largely balance each other out.

Die Abb. 6 zeigt die Konstruktion der Meisterscheibe //.In einem Punkt 1 der dem Teilkreis der zu fräsenden Verzahnung entsprechenden Kurve des Werkstückes g wird die Tangente T gezogen. In dem Punkt 1 wird zu dieser Tangente nach dem Werkstück zu die Senkrechte w errichtet, und diese ist bis zum Schnitt mit der Begrenzungsfläche der Antriebsscheibe Q verlängert. Dieser Schnittpunkt 1' ist ein Punkt der äußeren Begrenzungslinie der Meisterscheibe H. Die anderen Punkte dieser Begrenzungslinie werden dadurch erhalten, daß man für jeden Punkt des Teilkreises des. Werkstückes; g die gleiche Konstruktion anwendet, indem man das Werkstück langsam um den Mittelpunkt der Welle/ dreht. Die Länge der Senkrechten w zu den Tangenten soll konstant sein, so daß also die Geraden i-i', 2-2', 3-3' usw. einander gleich sind. Die Begrenzungskurve der Meisterscheibe ti hat die in der Abb. 6 gezeigte Form, wozu zu bemerken ist, daß ihre große Achse y zu der großen Achse ζ der Teilkurve des Werkstückes rechtwinklig angeordnet ist.Fig. 6 shows the construction of the master disk //. The tangent T is drawn at point 1 of the curve of the workpiece g corresponding to the pitch circle of the toothing to be milled. At point 1, the perpendicular w is established to this tangent after the workpiece, and this is extended to the intersection with the boundary surface of the drive pulley Q. This point of intersection 1 'is a point on the outer boundary line of the master wheel H. The other points of this boundary line are obtained in that for each point of the pitch circle of the workpiece; g use the same construction by slowly turning the workpiece around the center of the shaft /. The length of the perpendicular w to the tangents should be constant, so that the straight lines i-i ', 2-2', 3-3 'etc. are equal to each other. The limiting curve of the master disk ti has the shape shown in Fig. 6, for which it should be noted that its major axis y is arranged at right angles to the major axis ζ of the part curve of the workpiece.

Beim Arbeiten der Fräsmaschine wandert also der Berührungspunkt zwischen der Meisterscheibe und der Andruckscheibe um so viel nach rechts oder links aus wie der Mittelpunkt der Fräszone des Abwälzfräsers auf dem Teilkreis des Werkstückes.When the milling machine is working, the point of contact between the master disk moves and the pressure disc by as much to the right or left as the center point the milling zone of the hob on the pitch circle of the workpiece.

Claims (2)

Patentansprüche: 6s Claims: 6s ι. Maschine zum Fräsen von ellipsenähnlichen Zahnrädern, die sich um ihren Mittelpunkt drehen sollen, bei welcher auf der Werkstückachse ein dem Werkstück entsprechendes angetriebenes Meisterzahnrad und eine der Werkstückteilkurve entsprechende Meisterscheibe angeordnet sind, wobei die letztere gegen einen Anschlag des den Fräser tragenden Werkzeugträgers anliegt, "welcher kraftschlüssig auf die Werkstückachse zu bewegbar ist, dadurch gekennzeichnet, daß die mit der Meisterscheibe zusammenarbeitende Andruckscheibe auf der entgegengesetzten Seite der Welle wie der Fräser angeordnet ist, so daß die von dem Fräsdruck und dem Andrüekdruck erzeugten Drehmomente einander entgegengesetzt gerichtet sind.ι. Machine for milling elliptical gears around your Turn the center point at which the workpiece is on the workpiece axis Corresponding driven master gear and one of the workpiece part curve corresponding master disc are arranged, the latter against one The stop of the tool carrier carrying the milling cutter is applied, "which is non-positive is movable towards the workpiece axis, characterized in that the with the Master disc cooperating pressure disc on the opposite one Side of the shaft like the milling cutter is arranged so that the milling pressure and the torque generated by the contact pressure are directed opposite to one another are. 2. Fräsmaschine nach Anspruch i, dadurch gekennzeichnet, daß die Begrenzungslinie der Meisterscheibe (//) eine solche Form hat, daß der Andruckpunkt der Andruckscheibe mit dem Mittelpunkt go der Fräszone in einer zur Andruckscheibe senkrechten Ebene liegt.2. Milling machine according to claim i, characterized marked that the boundary line of the master wheel (//) a has such a shape that the pressure point of the pressure disc go with the center point the milling zone lies in a plane perpendicular to the pressure disc. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEB180986D 1935-04-16 1937-12-04 Machine for milling ellipse-like gears Expired DE684838C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEB169435D DE668897C (en) 1935-04-16 1935-04-16 Machine for milling elliptical cogwheels, which should rotate around their center, by means of a worm-shaped hobbing cutter
DEB180986D DE684838C (en) 1935-04-16 1937-12-04 Machine for milling ellipse-like gears
GB19632/39A GB531563A (en) 1935-04-16 1939-07-05 Improvements in or relating to milling toothed gears

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEB169435D DE668897C (en) 1935-04-16 1935-04-16 Machine for milling elliptical cogwheels, which should rotate around their center, by means of a worm-shaped hobbing cutter
DEB172691D DE732154C (en) 1935-04-16 1936-01-26 Machine for the production of non-round or elliptical gears by means of a hobbing cutter
DEB180986D DE684838C (en) 1935-04-16 1937-12-04 Machine for milling ellipse-like gears

Publications (1)

Publication Number Publication Date
DE684838C true DE684838C (en) 1939-12-06

Family

ID=32471314

Family Applications (2)

Application Number Title Priority Date Filing Date
DEB172691D Expired DE732154C (en) 1935-04-16 1936-01-26 Machine for the production of non-round or elliptical gears by means of a hobbing cutter
DEB180986D Expired DE684838C (en) 1935-04-16 1937-12-04 Machine for milling ellipse-like gears

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEB172691D Expired DE732154C (en) 1935-04-16 1936-01-26 Machine for the production of non-round or elliptical gears by means of a hobbing cutter

Country Status (1)

Country Link
DE (2) DE732154C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814166A (en) * 1953-01-22 1957-11-26 Gleason Works Grinding machine for sharpening cutters and the like
US2866390A (en) * 1955-01-03 1958-12-30 Gen Mills Inc Automatic contour duplicator
DE1099313B (en) * 1956-08-07 1961-02-09 Borsig Ag Milling machine for the production of rotary pistons
US3651737A (en) * 1969-09-30 1972-03-28 Oval Eng Co Ltd Gear cutting apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE929045C (en) * 1953-08-18 1955-06-16 Kodak Ag Copy milling machine
US2962937A (en) * 1956-07-16 1960-12-06 Wilford P Crise Method of cutting irregular cams and gears

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814166A (en) * 1953-01-22 1957-11-26 Gleason Works Grinding machine for sharpening cutters and the like
US2866390A (en) * 1955-01-03 1958-12-30 Gen Mills Inc Automatic contour duplicator
DE1099313B (en) * 1956-08-07 1961-02-09 Borsig Ag Milling machine for the production of rotary pistons
US3651737A (en) * 1969-09-30 1972-03-28 Oval Eng Co Ltd Gear cutting apparatus

Also Published As

Publication number Publication date
DE732154C (en) 1943-02-23

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