DE745950C - Device for testing the tip of drills - Google Patents

Device for testing the tip of drills

Info

Publication number
DE745950C
DE745950C DEB192815D DEB0192815D DE745950C DE 745950 C DE745950 C DE 745950C DE B192815 D DEB192815 D DE B192815D DE B0192815 D DEB0192815 D DE B0192815D DE 745950 C DE745950 C DE 745950C
Authority
DE
Germany
Prior art keywords
drill
tip
drills
reticle
testing
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
DEB192815D
Other languages
German (de)
Inventor
Karl Martin
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.)
EMIL BUSCH
OPTISCHE IND AG
Original Assignee
EMIL BUSCH
OPTISCHE IND AG
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 EMIL BUSCH, OPTISCHE IND AG filed Critical EMIL BUSCH
Priority to DEB192815D priority Critical patent/DE745950C/en
Application granted granted Critical
Publication of DE745950C publication Critical patent/DE745950C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • B23Q17/0904—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool before or after machining
    • B23Q17/0919—Arrangements for measuring or adjusting cutting-tool geometry in presetting devices
    • B23Q17/0938—Cutting angles of drills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Description

Einrichtung zum Prüfen der Spitze von Bohrern Die Erfindung betrifft eine Einrichtung zum Prüfen der Spitze von Bohrern, insbesondere Spiralbohrern, bestehend aus einem Auflagestück für den Bohrer und einer Beobachtungseinrichtung mit Strichplatte.Device for testing the tip of drills The invention relates to a device for testing the tip of drills, especially twist drills, consisting of a support piece for the drill and an observation device with graticule.

Mit den .bekannten Einrichtungen dieser Art kann man nur die Mittenlage der Spitze von Bohrern prüfen. Eine solche Prüfeinrichtung ist in Fig. i im Seitenriß dargestellt; a ist die Bohrerauflage mit einer V-förmigen Rinne, in der ein runder Bohrer b ohne weiteres mittenrichtig liegt. Mit m ist ein Mikroskop bezeichnet, in dessen Bildebene eine Markenplatte mit Strich vorgesehen ist, an der man die mittenrichtige Lege der Bohrirspitze nachprüfen kann. Fig. a zeigt die Ansicht der Bohrerspitze im Mikroskop und die Strichmarke s.With the well-known facilities of this type, you can only get the middle position check the tip of drills. Such a testing device is shown in side elevation in FIG shown; a is the drill support with a V-shaped groove in which a round Drill b is right in the middle without further ado. A microscope is denoted by m, in whose image plane a mark plate with a line is provided, on which you can can verify that the drill bit is positioned correctly in the center. Fig. A shows the view of Drill tip in the microscope and the line mark s.

Die Erfindung bezweckt die Vervollkommnung einer solchen Prüfeinrichtung und besteht darin, daß auf der Strichplatte außer der zum Prüfen der Mittenlage der Spitze dienenden Strichmarke zusätzlich winkelartig zu-@.einander liegende Strichmarken vorgesehen sind, und daß ferner die Beobachtungsvorrichtung in an der Bohrerauflage so schwenkbar angeordnet ist, daß mit der Einrichtung außer der Mittenlage der Bohrerspitze nach Verschwenken der Beobachtungseinrichtung aus der Längsachse des Bohrers in eine zu dieser senkrechte Lage auch der Spitzenwinkel des Bohrers geprüft werden kann. Die Größe des Spitzenwinkels ist je nach Art des zu bearbeitenden Werkstoffes verschieden.The invention aims to perfect such a test device and consists in the fact that on the reticle apart from that for checking the center position The line mark used for the tip additionally at an angle to - @. line marks lying one on top of the other are provided, and that also the observation device in on the drill support is so pivotably arranged that with the device except for the central position of the drill tip after pivoting the observation device from the longitudinal axis of the drill in the point angle of the drill can also be checked if it is perpendicular to this position can. The size of the point angle depends on the type of material to be machined different.

Fig. 3 zeigt die Einrichtung beim Prüfen der Mittenlage (volle Linien) und des Spitzenwinkels (gestrichelte Linien), während Fig. 4 das Bildfeld im Mikroskop bei der Prüfung des Spitzenwinkels zeigt.Fig. 3 shows the device when checking the center position (full lines) and the apex angle (dashed lines), while FIG. 4 shows the image field in the microscope when checking the point angle shows.

Die Beobachtungseinrichtung kann auch nur aus einem Diopter und der Strichmarke bestehen.The observation device can only consist of a diopter and the Line mark exist.

Claims (1)

PATENTANSPRUCH: Einrichtung zum Prüfen der Spitze von Bohrern., insbesondere Spiralbohrern, bestehend aus einem Auflagestück für den Bohrer und einer Beobachtungsvorrichtung mit Strichplatte, dadurch gekennzeichnet, -daß auf der Strichplatte außer der zum Prüfen der Mittenlage der Spitze dienenden Strichmarke (s) zusätzlich winkelartig zueinander liegende Strichmarken (w) vorgesehen sind, und daß die Beobachtungsvorrichtung (na) an dem Auflagestück (a.) für den Bohrer (b) so schwenkbar angeordnet ist, daß mit der Einrichtung außer der Mittenlage derBohrerspitzenach Verschwenken der Beobachtungsvorrichtung (na) aus der Längsacbse des Bohrers in eine zu dieser senkrechte Lage auch der Spitzen-,vinkel des Bohrers geprüft werden kann. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik ist im Erteilungsverfahren folgende Druckschrift in Betracht gezogen worden: USA.-Patentschrift ...... Nr. 1 489 372. PATENT CLAIM: Device for testing the tip of drills, in particular twist drills, consisting of a support piece for the drill and an observation device with reticle, characterized in that on the reticle, in addition to the reticle (s) serving to test the center position of the tip, additionally angled mutually lying line marks (w) are provided, and that the observation device (na) is arranged pivotably on the support piece (a.) for the drill (b) so that with the device, apart from the central position of the drill tips, after pivoting the observation device (na) out of the Longitudinal axis of the drill in a position perpendicular to this position, the tip angle of the drill can also be checked. To distinguish the subject matter of the application from the state of the art, the following publication was considered in the granting procedure: USA.-Patent ...... No. 1 489 372.
DEB192815D 1940-12-21 1940-12-21 Device for testing the tip of drills Expired DE745950C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB192815D DE745950C (en) 1940-12-21 1940-12-21 Device for testing the tip of drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB192815D DE745950C (en) 1940-12-21 1940-12-21 Device for testing the tip of drills

Publications (1)

Publication Number Publication Date
DE745950C true DE745950C (en) 1944-12-13

Family

ID=7011512

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB192815D Expired DE745950C (en) 1940-12-21 1940-12-21 Device for testing the tip of drills

Country Status (1)

Country Link
DE (1) DE745950C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943496C (en) * 1954-07-15 1956-05-24 Heinrich Schneider Dr Optical test object for testing twist drills
US3167869A (en) * 1962-04-24 1965-02-02 William E Raney Optical measuring device
US5155556A (en) * 1991-07-30 1992-10-13 Foanio Anthony J Hand-held drill bit tester
US5365667A (en) * 1993-12-07 1994-11-22 Golding David L Tool inspection apparatus having movable microscope for viewing different portions of a tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1489372A (en) * 1922-05-27 1924-04-08 Zeiss Carl Fa Twist-drill gauge

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1489372A (en) * 1922-05-27 1924-04-08 Zeiss Carl Fa Twist-drill gauge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943496C (en) * 1954-07-15 1956-05-24 Heinrich Schneider Dr Optical test object for testing twist drills
US3167869A (en) * 1962-04-24 1965-02-02 William E Raney Optical measuring device
US5155556A (en) * 1991-07-30 1992-10-13 Foanio Anthony J Hand-held drill bit tester
US5365667A (en) * 1993-12-07 1994-11-22 Golding David L Tool inspection apparatus having movable microscope for viewing different portions of a tool

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