DE717322C - Process for the production of back-turned form milling machines with reversible knives - Google Patents

Process for the production of back-turned form milling machines with reversible knives

Info

Publication number
DE717322C
DE717322C DEN40842D DEN0040842D DE717322C DE 717322 C DE717322 C DE 717322C DE N40842 D DEN40842 D DE N40842D DE N0040842 D DEN0040842 D DE N0040842D DE 717322 C DE717322 C DE 717322C
Authority
DE
Germany
Prior art keywords
knives
turned
production
working position
shape
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
DEN40842D
Other languages
German (de)
Inventor
Richard Nerrlich
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
Priority to DEN40842D priority Critical patent/DE717322C/en
Application granted granted Critical
Publication of DE717322C publication Critical patent/DE717322C/en
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/34Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Description

Verfahren zum Herstellen hinterdrehter Formfräser mit umlegbaren Messern Vorliegende Erfindung betrifft ein Verfahren zum Herstellten hinterdrehter Formfräser mit umlegbaren Messern und den nach diesem Verfahren hergestellten Fräser.Process for producing undercut form milling cutters with reversible knives The present invention relates to a method for producing undercut form milling cutters with reversible knives and the milling cutters made according to this process.

Fräser mit umlegbaren Messern sind bekannt. Bei einer Art werden z. B. die Messer um je einen im Fräserkörper sitzenden Stift in eine der beiden nötigen Lagen, konzentrische Kreislage oder Arbeitslage, geklappt, bis die Messerkanten aneinanderliegen und sich gegenseitig gegen weiteres Verdrehen stützen. Bei einer anderen Art sind die Messer in besondere Aussparungen des Fräserkörpers eingepaßt, in die sie in beide Lagen eingelegt werden können.Milling cutters with reversible knives are known. In one type z. B. the knife to each one seated in the cutter body pin in one of the two necessary Layers, concentric circular position or working position, folded until the knife edges lie against each other and support each other against further twisting. At a In another way, the knives are fitted into special recesses in the cutter body, in which they can be inserted in both layers.

Alle diese Festlegungsarten :erfordern zeitraubende Paßarbeiten, damit die beiden Lagen genau erhalten bleiben.All of these types of fixing: require time-consuming passport work, so that the two layers are exactly preserved.

Das Einarbeiten der genauen Form in einen Fräser mit umlegbaren Messern in Arbeitslage erfolgte bisher wie ,an Fräsern aus einem Stück mit Formstählen-, die meist an ein Werkstück angepaßt wurden, mit bekannter Hinterdrehvorrichtung .oder aber in konzentrischer Kreislage der Messer mit Stählen, deren Form zur Vermeidung vom Profilverzerrungen berechnet oder ausprobiert wurde.Working the exact shape into a milling cutter with reversible knives in the working position was previously carried out as, on milling cutters made of one piece with shaped steel, which were mostly adapted to a workpiece, with a known back-turning device . or in a concentric circular position of the knife with steels, their shape to avoid from profile distortion has been calculated or tried.

Diese Arbeit wird erfindungsgemäß dadurch vereinfacht, daß :an den Spitzen der in Arbieitsstellung gelegten Messer die gewünschte Form angedreht wird, die Messer anschließend in die konzentrische Kreislage umgelegt werden und in dieser Lage entsprechend der an den Spitzen erzeugten Form auf dem" ganzen Umfang abgedreht werden, um nach Zurücklegen in die Arbeitslage die hinterdrehte Form richtig aufzuweisen. Außerdem sollen bei dem nach diesem Verfahren hergestellten Fräser die auf im Grundkörper befestigte Stifte aufgeschobenen und in Arbeitslage und konzentrische Kreislage umlegbaren Messer durch eine auf die Stifte aufgesteckte Deckplatte festgehalten werden. In der Zeichnung ist a der Grundkörper des Fräsers, b sind die in ihm festsitzenden Stifte, durch die die Messer festgelegt werden, c ist ein Messer in konzentrischer Kreislage, d ein solches in der Arbeitslage und e die Deckplatte, die über die Stifte gesteckt wird.This work is simplified according to the invention in that: to the The tips of the knives placed in the working position are turned to the desired shape, the knives are then turned into the concentric circular position and in this The position is turned off over the whole circumference according to the shape created at the tips in order to have the back-turned shape correctly after returning to the working position. In addition, in the case of the milling cutter manufactured by this method, the fastened pins pushed on and in working position and concentric circular position reversible knife held by a cover plate attached to the pins will. In the drawing, a is the main body of the milling cutter, b are the ones that are stuck in it Pins through which the knives are set, c is a knife in concentric Circular position, d such in the working position and e the cover plate, which is over the pins is plugged.

Zum Andrehen der Form an den Fräser werden zuerst die Messer mit ihren nach gewünschtem Spanwinkel fertigbearbeiteten Spanflächen in die Arbeitslage gelegt und an die Messerspitzen die Form, etwa nach einem Musterstück, angedreht, dann werden die Messer in die konzentrische Kreislage umgelegt, und in dieser Lage wird der ganze Umfang entsprechend der an den Spitzen erzeugten Form abgedreht. Nach Härtung usw. der Messer, Aufsetzen auf die Stifte des Fräserkörpers in die Arbeitslage und Auflegen der Deckplatte ist der hinterdrehte Fräser mit richtiger Form fertig.To turn the shape to the cutter, the knives with their Finished rake faces placed in the working position according to the desired rake angle and then turn the shape onto the tips of the knife, for example based on a sample the knives are turned into the concentric circular position, and in this position is the entire circumference is turned off according to the shape created at the tips. To Hardening etc. of the knife, placing on the pins of the cutter body in the working position and placing the cover plate, the back-turned milling cutter is finished with the correct shape.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zum Herstellen hinterdrehter Formfräser mit umlegbaren Messern, dadurch gekennzeichnet, daß an den Spitzen der in Arbeitsstellung gelegten Messer (d) die gewünschte Form angedreht wird, die Messer ,anschließend in die konzentrische Kreislage (1t, i) umgelegt werden und in dieser Lage entsprechend der an den Spitzen erzeugten Form auf dem ganzen Umfang abgedreht werden, um nach Zurücklegen in die Arbeitslage die hinterdrehte Form richtig aufzuweisen. z. Fräsen hergestellt nach dem Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die auf im Grundkörper (,a) befestigte Stifte aufgeschobenen und in Arbeitslage und konzentrische Kreislage umlegbaren Messer (c, d) durch eine auf die Stifte aufgesteckte Deckplatte (e) festgehalten werden.PATENT CLAIMS: i. Process for the production of back-turned form milling cutters with reversible knives, characterized in that the desired shape is turned on the tips of the knives (d) placed in the working position, the knives are then turned into the concentric circular position (1t, i) and in this position accordingly The shape created at the tips can be turned off over the entire circumference in order to have the undercut shape correctly after returning to the working position. z. Milling produced according to the method according to claim i, characterized in that the knives (c, d) pushed onto pins fixed in the base body (, a) and foldable in the working position and concentric circular position are held in place by a cover plate (e) placed on the pins.
DEN40842D 1937-06-17 1937-06-17 Process for the production of back-turned form milling machines with reversible knives Expired DE717322C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN40842D DE717322C (en) 1937-06-17 1937-06-17 Process for the production of back-turned form milling machines with reversible knives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN40842D DE717322C (en) 1937-06-17 1937-06-17 Process for the production of back-turned form milling machines with reversible knives

Publications (1)

Publication Number Publication Date
DE717322C true DE717322C (en) 1942-02-11

Family

ID=7348269

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN40842D Expired DE717322C (en) 1937-06-17 1937-06-17 Process for the production of back-turned form milling machines with reversible knives

Country Status (1)

Country Link
DE (1) DE717322C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909883C (en) * 1949-06-28 1954-04-26 Hommelwerke G M B H Hob cutter
DE972625C (en) * 1952-12-17 1959-08-20 Stefan Hertweck Hobbing cutter with knives inserted in a cutter base

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909883C (en) * 1949-06-28 1954-04-26 Hommelwerke G M B H Hob cutter
DE972625C (en) * 1952-12-17 1959-08-20 Stefan Hertweck Hobbing cutter with knives inserted in a cutter base

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