DE924925C - Process for the production of punched blind holes of any border with a clean finish on the ground - Google Patents

Process for the production of punched blind holes of any border with a clean finish on the ground

Info

Publication number
DE924925C
DE924925C DEN7351A DEN0007351A DE924925C DE 924925 C DE924925 C DE 924925C DE N7351 A DEN7351 A DE N7351A DE N0007351 A DEN0007351 A DE N0007351A DE 924925 C DE924925 C DE 924925C
Authority
DE
Germany
Prior art keywords
hole
punched
ground
border
blind holes
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
DEN7351A
Other languages
German (de)
Inventor
Alfons Lenz
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.)
NABENFABRIK ALFING KESSLER KOM
Original Assignee
NABENFABRIK ALFING KESSLER KOM
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 NABENFABRIK ALFING KESSLER KOM filed Critical NABENFABRIK ALFING KESSLER KOM
Priority to DEN7351A priority Critical patent/DE924925C/en
Application granted granted Critical
Publication of DE924925C publication Critical patent/DE924925C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like

Description

Es macht bekanntlich Schwierigkeiten, ein im Stoßverfaähren erzeugtes Sackloch auf dem Grund sauber zu bearbeiten. Dies ist darauf zurückzuführen, daß der Stempel, der die von dem ursprünglich kreisförmig gebohrten Loch abweichende Form des Sackloches erzeugt, die Späne nicht entfernen kann, sondern diese auf dem Grund der Bohrung zusammenpreßt und so einen unsauberen Abschluß des Sackloches hinterläßt. Der Aufwand für die Entfernung der zusammengepreßten Späne ist meist so groß, daß man auf die Säuberung des Sacklochgrundes verzichtet.As is well known, it causes difficulties, a collision generated Clean the blind hole on the ground. This is due to the fact that the punch that deviates from the originally drilled circular hole Form of the blind hole generated, the chips can not remove, but these on the The bottom of the hole compresses and so an unclean end of the blind hole leaves behind. The effort for the removal of the compressed chips is mostly so big that you don't have to clean the bottom of the blind hole.

Das in der Erfindung benannte Verfahren erlaubt, mit kleinstem Material- und Zeitaufwand einen sauberen Abschluß von gestoßenen Sacklöchern auf dem Grund auszuführen. Das Verfahren besteht darin, daß der Grund des Loches mit einem dünnen Blech abgedeckt wird, das durch den Stempel selbst aus einem Blechstück ausgestanzt und auf den Grund der Bohrung gedrückt wird, nachdem das Loch in der bislang ausgeführten Art fertig gestoßen ist. Der ganze Aufwand besteht also praktisch in einem weiteren Niedergang des Stempels, wobei über das fertig gestoßene Loch ein dünnes Blech geschoben wird, aus dem der Stempel ein Stück, entsprechend seinem Querschnitt, ausstanzt.The method named in the invention allows, with the smallest material and expenditure of time a clean closure of bumped blind holes on the ground to execute. The procedure consists in making the bottom of the hole with a thin one Sheet metal is covered, which is punched out by the punch itself from a piece of sheet metal and is pressed to the bottom of the hole after the hole in the previously executed Kind of done. So the whole effort is practically one more thing Decline of the punch, with a thin sheet being pushed over the finished hole is, from which the punch a piece, according to its cross-section, punches.

Fig. i zeigt ein Sechskantloch ,im Längsschnitt; Fig. 2 zeigt ein Sechskantloch in der Draufsicht; Fig. 3 zeigt ein Vierkantloch in der Draufsicht; Fig. 4 zeigt ein Dreikantloch in der Draufsicht.Fig. I shows a hexagonal hole, in longitudinal section; Fig. 2 shows a Hexagonal hole in plan view; Fig. 3 shows a square hole in plan view; Fig. 4 shows a triangular hole in plan view.

Claims (3)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung gestoßener Sacklöcher beliebiger Umrandung mit sauberem Abschluß auf dem Grund, dadurch gekennzeichnet, daß der Grund des Loches mit einem Blech abgedeckt wird, das den Querschnitt vollständig ausfüllt. .PATENT CLAIMS: i. Process for producing punched blind holes any border with a clean finish on the ground, characterized that the bottom of the hole is covered with a sheet that completely covers the cross-section fills out. . 2.. Verfahren nach Anspruch i, dadurch gekennzeichnet; daß das Abschlußblech mit demselben Stempel ausgestanzt wird, mit dem der Querschnitt des Loches gestoßen wurde. 2 .. The method according to claim i, characterized in that; that the end plate is punched out with the same punch with which the cross-section of the hole is punched became. 3. Verfahren nach Anspruch r und 2, dadurch gekennzeichnet, daß das fertig gestoßene Loch als Schnittplatte für das Ausstanzen des Abschlußbleches dient.3. The method according to claim r and 2, characterized in that the done The punched hole serves as a cutting plate for punching out the end plate.
DEN7351A 1953-06-19 1953-06-19 Process for the production of punched blind holes of any border with a clean finish on the ground Expired DE924925C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN7351A DE924925C (en) 1953-06-19 1953-06-19 Process for the production of punched blind holes of any border with a clean finish on the ground

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN7351A DE924925C (en) 1953-06-19 1953-06-19 Process for the production of punched blind holes of any border with a clean finish on the ground

Publications (1)

Publication Number Publication Date
DE924925C true DE924925C (en) 1955-03-10

Family

ID=7338850

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN7351A Expired DE924925C (en) 1953-06-19 1953-06-19 Process for the production of punched blind holes of any border with a clean finish on the ground

Country Status (1)

Country Link
DE (1) DE924925C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237279A (en) * 1964-03-17 1966-03-01 Amphenol Borg Electronics Corp Method of providing small drive units with thrust bearings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237279A (en) * 1964-03-17 1966-03-01 Amphenol Borg Electronics Corp Method of providing small drive units with thrust bearings

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